@article {640, title = {Taxonomy and Life History of Costa Rican Alabagrus (Hymenoptera: Braconidae), with a key to world species}, journal = {Contributions in Science, Natural History Museum of Los Angeles County}, volume = {497}, year = {2003}, pages = {1-82}, abstract = {The genus Alabagrus (Hymenoptera: Braconidae) is revised to include specimens collected throughout Costa Rica, including those from the Arthropods of La Selva (ALAS) project and rearings by Janzen and Hallwachs at Santa Rosa National Park. Descriptions are provided for a total of 39 species collected in Costa Rica, including 17 species that are new to Costa Rica and 6 species that are new to science. New species are A. combos, A. derailersi, A. donnai, A. englishi, A. sarapiqui, and A. watsoni. Species of Alabagrus are reported to be primarily associated with successional habitats, where they parasitize the larvae of Crambidae (Lepidoptera). The treatment of each species includes a total of 75 morphological and color characters and host records. Graphs of the temporal distribution and color photographs are presented for each of the 39 Costa Rican species. An illustrated key to the species of Alabagrus is provided.}, keywords = {Agathidinae; Alabagrus; Key; Phenology; Biology; Mimetism; New world; French guiana; Costa Rica}, issn = {0459-8113}, url = {http://www.nhm.org/site/sites/default/files/pdf/contrib_science/CS497.pdf}, author = {Leathers, J.W. and Sharkey, M.J.} } @article {525, title = {Caste fate conflict in swarm-founding social hymenoptera: an inclusive fitness analysis.}, journal = {Journal of evolutionary biology}, volume = {16}, year = {2003}, pages = {647-58}, abstract = {A caste system in which females develop into morphologically distinct queens or workers has evolved independently in ants, wasps and bees. Although such reproductive division of labour may benefit the colony it is also a source of conflict because individual immature females can benefit from developing into a queen in order to gain greater direct reproduction. Here we present a formal inclusive fitness analysis of caste fate conflict appropriate for swarm-founding social Hymenoptera. Three major conclusions are reached: (1) when caste is self-determined, many females should selfishly choose to become queens and the resulting depletion of the workforce can substantially reduce colony productivity; (2) greater relatedness among colony members reduces this excess queen production; (3) if workers can prevent excess queen production at low cost by controlled feeding, a transition to nutritional caste determination should occur. These predictions generalize results derived earlier using an allele-frequency model [Behav. Ecol. Sociobiol. (2001) 50: 467] and are supported by observed levels of queen production in various taxa, especially stingless bees, where caste can be either individually or nutritionally controlled.}, keywords = {Animals, evolution, Feeding Behavior, Female, Hymenoptera, Hymenoptera: genetics, Nutritional Status, Sexual Behavior, Animal, Social Dominance}, author = {Wenseleers, T and Ratnieks, F L W and Billen, J} } @article {508, title = {The pristine rain forest? Remnants of historical human impacts on current tree species composition and diversity}, journal = {Journal of Biogeography}, volume = {30}, year = {2003}, pages = {1381-1390}, abstract = {Aim Tropical rain forests are often regarded as pristine and undisturbed by humans. In Central Africa, community-wide disturbances by natural causes are rare and therefore current theory predicts that natural gap phase dynamics structure tree species compo- sition and diversity. However, the dominant tree species in many African forests recruit poorly, despite the presence of gaps. To explain this, we studied the disturbance history of a species-rich and structurally complex rain forest. Location Lowland rain forest in Southern Cameroon. Methods We identified the recruitment conditions of trees in different diameter classes in 16 ha of species-rich and structurally complex old growth rain forest. For the identification of recruitment preference we used independent data on the species com- position along a disturbance gradient, ranging from shifting cultivation fields (repre- senting large-scale disturbance), to canopy gaps and old growth forest. Results In nine of sixteen 1-ha forest plots the older trees preferred shifting cultivation fields for recruitment while younger trees preferred gaps and closed forest conditions. This indicates that these nine sites once experienced large-scale disturbances. Three lines of evidence suggest that historical agricultural use is the most likely disturbance factor: (1) size of disturbed and undisturbed patches, (2) distribution of charcoal and (3) his- torical accounts of human population densities. Main conclusions Present-day tree species composition of a structurally complex and species-rich Central African rain forest still echoes historical disturbances, most probably caused by human land use between three to four centuries ago. Human impact on African rain forest is therefore, contrary to common belief, an issue not of the last decades only. Insights in historical use will help to get a more balanced view of the pristine rain forest, acknowledging that the dualism between old growth and secon- dary forest may be less clear than previously thought.}, keywords = {africa, biodiversity, historical land use, shifting cultivation, tropical rain forest}, author = {Van Gemerden, Barend S. and Olff, Han and Parren, Marc P.E. and Bongers, Frans} } @article {432, title = {An{\'a}lise faun\'\istica de Braconidae (Hymenoptera) em tr{\^e}s {\'a}reas de mata nativa do Estado do Paran{\'a}, Brasil}, journal = {Revista Brasileira de Entomologia}, volume = {47}, year = {2003}, pages = {187-195}, publisher = {SciELO Brasil}, abstract = {Faunistic analysis of Braconidae (Hymenoptera) in three areas of native woods of Paran{\'a} State, Brazil. The material studied comes from three of the several natural environments which still occur in Paran{\'a} State. The samples were collected during the project PROFAUPAR, developed by Departamento de Zoologia, Universidade Federal do Paran{\'a}. The selected sites were: Antonina (in the coastal plain), S{\~a}o Jos{\'e} dos Pinhais (in the coastal mountain range) and Tel{\^e}maco Borba (in the second plateau). During one year of the project, 2,106 specimens of Braconidae were collected with light trap. These wasps represented 21 subfamilies and 1,966 specimens were identified in 85 genera. Hormiinae, Rogadinae, Microgastrinae, Alysiinae, Doryctinae and Meteorinae were the most frequent subfamilies. Indices of diversity and evenness were used to discuss richness and dominance of genera in each locality. Statistical analyses indicated that the asymptote of actual genera richness have been approached only to Antonina and Tel{\^e}maco Borba.}, keywords = {Braconidae, Brazil, diversity, light trap, parasitoid}, author = {Scatolini, D. and Penteado-Dias, A.M.M.} } @article {433, title = {Interactions of the ant Crematogaster scutellaris with the fig/fig wasp mutualism}, journal = {Ecological Entomology}, volume = {28}, year = {2003}, pages = {359-368}, abstract = {1. A classical example of specialised pollination mutualisms is the relationship between fig trees and their pollinating wasps, in which each partner depends completely on the other for its reproduction; however the fig/fig wasp association is also the target of a great diversity of other species, ranging from specialised parasites to opportunistic foragers, among them ants. 2. The ant community and the sources of ant attraction observed on the Mediterranean fig tree Ficus carica were characterised. 3. A guild of ants attracted by homopterans tended on the plant was distinguished from a second guild composed of two co-dominant ant species (Crematogaster scutellaris and Pheidole pallidula) that prey mostly on pollinating wasps, abundant during certain parts of the fig cycle. 4. Foraging workers of C. scutellaris search for prey on the fig inflorescence (syconium), capturing pollinating wasps mostly at the peak of wasp emergence and at a rate estimated to reach 600 prey per day for an entire tree. 5. Detailed study of the predatory sequences displayed under experimental conditions showed that ant workers captured 100\% of the pollinating wasps offered, while they captured only 5.5\% of the parasitoid wasp specific to the pollinator. The respective impacts of the interaction on ants and on the figs are discussed, as well as several behavioural traits of predation by the dominant ant on pollinators.}, keywords = {ant community, complex interactions, Ficus, mutualism, predatory}, author = {Schatz, Bertrand and Hossaert-Mckey, Martine} } @article {379, title = {Caenopachys hartigii (Ratzeburg)(Hymenoptera: Braconidae: Doryctinae) confirmed for Italy, with notes on the status of the genus Caenopachys Foerster}, journal = {Zoologische Mededelingen Leiden}, volume = {77}, year = {2003}, pages = {459-470}, abstract = {The Palaearctic species Caenopachys hartigii (Ratzeburg, 1848) has been collected in the National Park of Pollino (S Italy), which is the first exact confirmation for the Italian fauna. A brief nomenclatural history of the genus Caenopachys Foerster, 1862, is given, its status is discussed and it is elevated from synonymy. The type species is re-described and illustrated; a key to both West Palaearctic species is given, and some biological notes are added.}, keywords = {Braconidae, Bulgaria, C. hartigii, Caenopachys, Dendrosoter, Doryctinae, Europe, france, Hymenoptera, Italy, Morocco, new combina- tion, West Palaearctic}, author = {Mancini, D. and Priore, R. and Battaglia, D. and Achterberg, C. van} } @article {350, title = {Review of Mexican species of the genus Polycyrtus Spinola , 1840 (Hymenoptera : Ichneumonidae : Cryptini), with key to the species of North America}, journal = {Russian Entomological Journal}, volume = {12}, year = {2003}, pages = {311-327}, abstract = {Key to 42 North American species of the neotropical genus Polycyrtus is given. Seven new species from Mexico are described: P. burgosi sp.n., P. clavator sp.n., P. comma sp.n., P. crespoi sp.n., P. curtispina sp.n., P. soniae sp.n., P. yucatan sp.n. 23 species are recorded for Mexico; new data on their distribution are given. New synonymies are established: Polycyrtus major (Cresson, 1873) = Polycyrtus championi Cameron, 1885, = Polycyrtus fulvofemoratus Cameron, 1885, Polycyrtus montezuma Cameron, 1885, = Polycyrtus canaliculatus Cameron, 1885, =Polycyrtus blanditus Cameron, 1885, syn.n.}, keywords = {Ichneumonidae, key, Mexico, new species, North America, Polycyrtus}, author = {Kasparyan, D.R. and Ruiz-Cancino, E.} } @article {290, title = {Biodiversity indicators: the choice of values and measures}, journal = {Agriculture, Ecosystems \& Environment}, volume = {98}, year = {2003}, pages = {87-98}, abstract = {Ideally, an indicator for biodiversity is a linear correlate to the entity or aspect of biodiversity under evaluation. Different motivations for assessing entities or aspects of biodiversity lead to different value systems; their indicators may not correlate at all. For biodiversity evaluation in agricultural landscapes, three indices are proposed, each consisting of a basket of concordant indicators. They represent the three value systems {\textquotedblleft}conservation{\textquotedblright} (protection and enhancement of rare and threatened species), {\textquotedblleft}ecology{\textquotedblright} (ecological resilience, ecosystem functioning, based on species diversity), and {\textquotedblleft}biological control{\textquotedblright} (diversity of antagonists of potential pest organisms). The quality and reliability of commonly used indicators could and should be tested with a three-step approach. First, the motivations and value systems and their corresponding biodiversity aspects or entities have to be defined. In a time consuming second step, a number of habitats have to be sampled as thoroughly as possible with regard to one or several of the three value systems or motivations. The third step is to test the linear correlations of a choice of easily measurable indicators with the entities quantified in the second step. Some examples of good and bad correlations are discussed.}, author = {Duelli, P} } @article {301, title = {The Infratribe Strephonina in French Guiana with description of news species (Lepidoptera: Lycaenidae: Theclinae)}, journal = {Lambillionea}, volume = {103}, year = {2003}, author = {FAYNEL, C. and BR{\'E}VIGNON, C. and JOHNSON, K.} } @article {275, title = {Annotated key to the ensign wasp (Hymenoptera: Evaniidae) genera of the world, with descriptions of three new genera}, journal = {PROCEEDINGS-ENTOMOLOGICAL SOCIETY OF WASHINGTON}, volume = {105}, year = {2003}, pages = {859-875}, publisher = {Entomological Society of Washington}, author = {Deans, A.R. and Huben, M.} } @article {286, title = {Which carabid species benefit from organic agriculture?{\textemdash}a review of comparative studies in winter cereals from Germany and Switzerland}, journal = {Agriculture, Ecosystems \& Environment}, volume = {98}, year = {2003}, pages = {153-161}, abstract = {Data of comparative studies about carabid beetles in organically and conventionally managed winter cereal fields of central Europe, using the pitfall trapping method, were collected from the literature and unpublished data sources and were then pooled and analysed. According to an index, which was designed to calculate how much a species benefits from organic management, Carabus auratus turned out to benefit most. Some Amara species (A. familiaris, A. similata and A. aenea)as well as Pseudoophonus rufipes and Harpalus affinis also showed high index values. When analysing the traits of the carabids, the habitat preference was the most important variable for the differentiation of organic and conventional management. The stronger the preference for open field, the more the species are supported by organic agriculture. For the promotion of the agricultural carabid fauna it is suggested that weedier and less densely cropped fields be tolerated.}, keywords = {carabidae, carabus auratus, habitat preference, pitfall trap, winter cereals}, author = {D{\"o}ring, T. and Kromp, B.} } @article {248, title = {Fenologia dos Braconidae (Hymenoptera, Ichneumonoidea) da {\'A}rea de Prote{\c c}{\~a}o Ambiental (APA) de Descalvado, SP}, journal = {Revista Brasileira de Entomologia}, volume = {47}, year = {2003}, pages = {99-105}, publisher = {SciELO Brasil}, abstract = {Phenology of the Braconidae (Hymenoptera, Ichneumonoidea) at {\'A}rea de Prote{\c c}{\~a}o Ambiental of Descalvado, S{\~a}o Paulo State. The flight phenology of the Braconidae fauna was conducted using Malaise traps in five sites of the Environmental Protected Area of Descalvado. A total of 2,792 specimens, representing 22 subfamilies, was sampled throughout a period of sixteen months from May, 1999 to August, 2000. The traps catches for koinobionts peak was in August, 1999 a month before of the idiobionts peak and in June, 2000 both peaks were simultaneous. The phenological peaks of dominant koinobiont taxa (Microgastrinae) were similar to all koinobionts, and the peaks of dominant idiobiont taxa (Doryctinae) were similar to all idiobionts, as well. December, 1999 and February, 2000 were the richer months in number of subfamilies (N= 19 and 18, respectivaly), corresponding to the same period when the subfamilies which potentially attack Lepidoptera where collected. The number of females was superior to the number of males and this relation was more accentuated in koinobionts. The peaks of both females and males were similar to dominate koinobiont and idiobionte taxa.}, keywords = {Braconidae, Brazil, flight fenology, fragmentary natural environments, parasitoid}, author = {Cirelli, K.R.N. and Penteado-Dias, A.M.M.} } @article {249, title = {An{\'a}lise da riqueza da fauna de Braconidae (Hymenoptera, Ichneumonoidea) em remanescentes naturais da {\'A}rea de Prote{\c c}{\~a}o Ambiental (APA) de Descalvado, SP}, journal = {Revista Brasileira de Entomologia}, volume = {47}, year = {2003}, pages = {89-98}, publisher = {SciELO Brasil}, abstract = {Analysis of the Braconidae (Hymenoptera: Ichneumonoidea) fauna richness in natural remnants of the {\'A}rea de Prote{\c c}{\~a}o Ambiental (APA) of Descalvado, SP. A survey of the Braconidae fauna on fragmentary natural environments at northeast S{\~a}o Paulo State was conducted using Malaise traps installed in five sites of {\'A}rea de Prote{\c c}{\~a}o Ambiental of Descalvado. A total of 2,262 specimens, representing 22 subfamilies and 94 genera, was sampled throughout a period of sixteen months (from May, 1999 to August, 2000). Biological data were obtained from current literature and behavior patterns of host utilization for the studied fauna, mainly Braconidae which have been successful in control of agricultural insect pests. Statistical analyses indicated that the asymptote of the genera richness has been approached using this sampling method. This is the most complete survey yet available from natural fragmentary areas of the Descalvado Braconidae fauna. Patterns of distribution and richness of the Braconidae genera were established. Cluster Analysis was adopted taking as attribute the number of Braconidae genera.}, keywords = {biodiversity, Braconidae, Brazil, fragmentary natural environments, parasitoids}, author = {Cirelli, K.R.N. and Penteado-Dias, A.M.M.} } @article {235, title = {Balgus schnusei (Heller) cayennensis, sous-esp{\`e}ce nouvelle d{\textquoteright}{\'e}lat{\'e}ride de la faune de Guyane fran{\c c}aise (Coleoptera, Elateridae, Thylacosterninae)}, journal = {Revue fran{\c c}aise d{\textquoteright}Entomologie (N.S.)}, volume = {25}, year = {2003}, pages = {81-84}, keywords = {SEAG}, author = {CHASSAIN, J.} } @article {244, title = {A molecular phylogeny of the subfamily Rogadinae (Hymenoptera: Braconidae) based on the D2 variable region of 28S ribosomal RNA}, journal = {Acta Entomologica Sinica}, volume = {46}, year = {2003}, pages = {209-217}, keywords = {28S rRNA, Braconidae, Hymenoptera, molecular phylogeny, Rogadinae}, author = {Chen, X.-X. and Piao, M.-H. and Whitfield, J.B. and He, J.-H.} } @article {216, title = {Faunal composition of geometrid moths changes with altitude in an Andean montane rain forest}, journal = {Journal of Biogeography}, volume = {30}, year = {2003}, pages = {431-440}, publisher = {Wiley Online Library}, abstract = {Aim The objective of this study was to describe and interpret the changes in faunal composition in the moth family Geometridae (Lepidoptera) along a small-scale eleva- tional gradient in a tropical montane rain forest. This gradient was compared with a large-scale latitudinal gradient in Europe. Location Investigations were carried out in the province Zamora-Chinchipe in southern Ecuador along a gradient ranging from1040to2677 mabove sea level at twenty-two sites. Methods Moths were sampled with light-traps in three field periods in 1999 and 2000 and subsequently sorted and determined to species or morphospecies. Results We analysed 13,938 specimens representing 1010 species of geometrid moths. The proportional contribution of subtaxa to the local geometrid fauna changes along the elevational gradient at all systematic levels considered. While proportions of species of the subfamilies Ennominae, Sterrhinae and Geometrinae significantly decrease, the propor- tion of Larentiinae increases with increasing altitude. Changes also occur within the subfamilies Ennominae and Larentiinae. The host{\textendash}plant specialist ennomine tribes Cassymini, Macariini and Palyadini completely vanish, and the proportion of the tribe Boarmiini decreases at high altitudes. In contrast, the remaining tribes (mostly comprising polyphagous species) either do not show proportional changes (Azelinini, Nacophorini, Nephodiini, Ourapterygini) or even increase (Caberini, Cratoptera group). Within Lar- entiinae, the species proportion of the genus Eois decreases, whereas concomitantly the proportion of Eupithecia increases. There is a remarkable similarity between the altitu- dinal patterns in Ecuador and those found along the latitudinal gradient in Europe. Main conclusions Species of the subfamily Larentiinae seem to be particularly well- adapted to harsh environmental conditions, towards both high altitudes and latitudes. They might disproportionately profit from lower predation at higher altitudes. Many changes in the faunal composition can be explained by expected host{\textendash}plant requirements of the species involved. Our results show that diversity estimates based on taxon ratios which are assumed to be constant must be regarded with caution because such ratios can change rapidly along environmental gradients.}, keywords = {biodiversity indicators, elevational gradient, Ennominae, geometridae, host{\textendash}plant specialists, indicator taxa, Larentiinae, latitudinal gradient, taxon ratios}, author = {Brehm, Gunnar and Fiedler, K.} } @article {199, title = {New species of Pambolus Haliday and Phaenocarpa Foerster (Hymenoptera: Braconidae: Pambolinae, Alysiinae) from French Guyana, Suriname and Panama}, journal = {Zoologische Mededelingen Leiden}, volume = {77}, year = {2003}, pages = {153-179}, abstract = {

Ten new species of Braconidae (Hymenoptera) from French Guyana, Suriname and Panama are described and illustrated. Seven species of the genus Pambolus Haliday, 1836, (Pambolinae: P. pappi spec. nov., and P. rufus spec. nov. from French Guyana, P. granulatus spec. nov. from Suriname, P. duplotaeniatus spec. nov., P. hemitaeniatus spec. nov., P. micropennis spec. nov., and P. microstriatus spec. nov. from Panama) and three species of the genus Phaenocarpa Foerster, 1862 (Alysiinae: P. acarinata spec. nov. and P. insolita spec. nov. from French Guyana, and P. areolata spec. nov. from Panama). Keys to the Neotropical species of both genera are given. Some data on the distribution of other Neotropical species of the genera Phaenocarpa, Idiasta Foerster and Gnathopleura Wharton are added.

}, keywords = {Alysiinae, Braconidae, French Guiana, Hormiinae, keys, Neotropical, new genus, new species, Pambolinae, Pambolus, Panama, Phaenocarpa, Suriname}, url = {http://www.repository.naturalis.nl/document/44263}, author = {Braet, Y. and Achterberg, C. van} } @article {200, title = {Doryctorgilus gen. nov. and other new taxa, with a study of the internal microsculpture of the ovipositor in the subfamily Orgilinae Ashmead (Hymenoptera: Braconidae)}, journal = {Zoologische Mededelingen Leiden}, volume = {77}, year = {2003}, pages = {127-152}, abstract = {

One new monotypic genus of the subfamily Orgilinae Ashmead, 1900 (type species: D. morvanae spec. nov.), two new species of the genus Podorgilus van Achterberg, 1994 (P. nemorensis spec. nov. and P. luteus spec. nov.) and one new species of the genus Agathis Latreille, 1804 (A. depressifrons spec. nov.) are described. The internal microsculpture of the ovipositor in several genera of the subfamily Orgilinae has been examined and revealed several new features with a potentially high phylogenetic value. A cladistic analysis has been performed with some of these new character-states which corroborate the recognition of the tribe Mimagathidini Enderlein, 1905 (excluding the subtribe Mesocoelina Viereck, 1918), and support the division of this subfamily into three tribes. The study of the genera Bentonia and Stantonia showed the need of an accurate analysis to verify the status of the genus Bentonia.

}, keywords = {Agathidinae, Agathidini, Agathis, Anstestrigini, Braconidae, Brazil, cladistic analysis, Colombia, Doryctorgilus, keys, Mesocoelina, Mimagathidini, Neotropical, new genus, new species, Orgilinae, Orgilini, ovipositor internal microsculpture, phylogeny}, url = {http://www.repository.naturalis.nl/document/44262}, author = {Braet, Y. and Achterberg, C. van} } @article {203, title = {Description of four new genera and nine new species of Doryctinae (Hymenoptera: Braconidae) from French Guyana}, journal = {Zoologische Mededelingen Leiden}, volume = {77}, year = {2003}, pages = {93-125}, abstract = {

From French Guyana four new genera of the subfamily Doryctinae Foerster, 1862 (Hymenoptera: Braconidae) with six new species (Lamquetia gen. nov.; type species: L. rufa Braet \& van Achterberg, spec. nov., L. marshi Braet \& Barbalho, spec. nov.), Ondigus gen. nov. (type species: O. bicolor spec. nov.), Neostaphius gen. nov. (type species: N. striatus spec. nov.), and Dapsilitas gen. nov. (type species: D. bicolor spec. nov.; D. robustisoma Braet \& van Achterberg, spec. nov.) are described. In addition, three new species of the genera Achterbergia Marsh, 1993 (A. cornicoxa Braet \& Barbalho, spec. nov.), Aphelopsia Marsh, 1993 (A. striata Braet \& Barbalho, spec. nov.) and Nervellius Roman, 1923 (N. exquisitus Braet \& Barbalho, spec. nov.) are described. Additional distributional data on Achterbergia arawak Marsh, 1993; Aphelopsia annulicornis Marsh, 1993; and Ptesimogasteroides cerdai Braet \& van Achterberg, 2001, are given. The internal microsculpture of the ovipositor of P. cerdai is illustrated. The genus Sharkeyelloides Marsh, 2002, is synonymized with Ptesimogastroides Braet \& van Achterberg, 2001 (syn. nov.). Keys to the species of the genera Achterbergia Marsh, Aphelopsia Marsh, Nervellius Roman, Lamquetia gen. nov., Dapsilitas gen. nov. and Ptesimogastroides Braet \& van Achterberg are given.

}, keywords = {Achterbergia, Aphelopsia, Braconidae, Dapsilitas, Doryctinae, French Guiana, keys, Lamquetia, Neostaphius, Neotropical, Nervellius, new genus, new species, Ondigus, Ptesimogastroides, Sharkeyelloides}, url = {http://www.repository.naturalis.nl/document/44259}, author = {Braet, Y. and Barbalho, S.M. and Achterberg, C. van} } @article {110, title = {The European species of the subgenus Aliolus Say of the genus Eubazus Nees and of the genus Dicyrtaspis van Achterberg (Hymenoptera: Braconidae:}, journal = {Zoologische Mededelingen Leiden}, volume = {77}, year = {2003}, pages = {301-320}, abstract = {The European species of the subgenus Aliolus Say, 1836, of the genus Eubazus Nees, 1814, and of the genus Dicyrtaspis van Achterberg, 1980 (Hymenoptera: Braconidae: Brachistinae) are reviewed. The identity of Triaspis thomsoni Fahringer, 1934, and the interpretation by S ˘nofl{\'a}k (1953) are discussed. A lectotype is designated for T. thomsoni, a neotype for the types species of Aliolus Say, 1836 (Bracon trilo- batus Say, 1836) and T. thomsoni sensu S ˘nofl{\'a}k is described as a new species (Eubazus nigroventralis spec. nov.) from Bulgaria, Germany and Czech Republic. Two new species of the E. lepidus-group are described and illustrated (E. punctifer cpec. nov. from Bulgaria and E. planifacialis spec. nov. from The Netherlands, Belgium and Sweden). In addition, a closely related species of the type species (and up to now only known species) of the genus Dicyrtaspis van Achterberg from Bulgaria is described and illustrated (D. aurantia spec. nov.). A key to the European species of the subgenus Aliolus Say, and of the genus Dicyrtaspis van Achterberg is added.}, keywords = {Aliolus, Belgium, Brachistinae, Brachistini, Braconidae, Bulgaria, Dicyr- taspis, distribution, Eubazus, Europe, Germany, Helconinae, Hymenoptera, key, Netherlands, new species., palaearctic, Sweden, Triaspis thomsoni}, author = {Achterberg, C. van} }