Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 91. (Budapest 1999)

Papp, J.: Five new Microchelonus species from the Neotropical Region (Hymenoptera, Braconidae: Cheloninae)

SYSTEMATIC PART Microchelonus angustus sp. n. Ç (Figs 1-8) Material examined (2 ÇÇ) - Female holotype and one female paratype: Argentina, Tucuman, 1905, leg. E. VEZÉNYÍ. - Holotype and one female paratype are deposited in the Hungarian Natural History Museum, Budapest; Hym. Typ. Nos 7842 (holotype) and 7843 (paratype). Etymology - The species name angustus refers to the narrow pterostigma of the fore wing. Description of the female holotype - Body 3.1 mm long. Antenna as long as head, mcsosoma and half of carapace combined, with 16 antennomeres. First flagellomere 2.8 times as long as broad apically, further flagellomeres progressively shortening so that flagellomeres 11-13 1.5 times to 1.4 times as long as broad (Fig. 1). - Head in dorsal view (Fig. 2) twice as broad as long, eye 1.7 times as long as temple, latter strongly rounded, occiput excavated. Eye in lateral view 1.7 times as high as wide, beyond eye temple feebly broadening ventrally and below as wide as eye (Fig. 3, see arrows). Clypeus 1.75 times as wide as high, its lower margin convex (Fig. 4). Face distinctly twice as wide as high. Malar space 1.6 limes as long as basal width of mandible. Head rugose, vertex transversely rugo-punctate (Fig. 2). Temple strongly punctate, punctures elliptic (Fig. 3). Mesosoma in lateral view 1.5 times as long as high, rugulosc, mesonotum rather rugose. Lateral pair of lobes at base of scutellum small and less distinct. Scutellum punctate, subshiny. Caudal margin of propodeum defined by a less distinct and rather weak transverse ridge; lateral pair of projections larger than median pair of projections. - Hind femur 3.5 times as long as broad medially. Fore wing as long as antenna or head, mesosoma and half carapace. Pterostigma (Fig. 5) narrow, 3.6 times as long as wide and issuing r clearly distally from its middle, r shorter than width of pterostigma, 3-SR longer than r, 4-SR straight; marginal cell along l-RI one-fourth shorter than length of pterostigma. Figs 1-8. Microchelonus angustus sp. n.: 1 = flagellomeres 10-14, 2 = head in dorsal view with indication of its sculpture, 3 = head in lateral view with indication of the sculpture of temple, 4 = clypeus, 5 = distal part of right fore wing, 6 = carapace in dorsal view with indication of its sculpture, 7 = carapace in lateral view, 8 = apico-ventral end of carapace