Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 68. (Budapest 1976)

Huddleston, T.: A revision of Elasmosoma Ruthe (Hymenoptera, Braconidae) with two new species from Mongolia

Key to species of Elasmosoma (99)* 1 Ocellar triangle obtuse, the distance between the hind ocelli about twice the distance between a hind ocellus and the eye; antennái segments 3-4 at most as long as broad ; tarsus of foreleg distinctly longer than tarsus of middle leg . . 2 - Ocellar triangle more or less right-angled, the distance between the hind ocelli about equal to the distance between hind ocellus and eye; antenna! segments 3-4 distinctly longer than broad ; tarsus of foreleg distinctly shorter than tarsus of middle leg 3 2 Propodeum viewed from above about twice as broad as long; hind tibial spur stout, slightly shorter than basal segment of tarsus; face about 1.5 times as long as broad; basitarsus of middle leg only about 1.5 times as long as following segment. Mongolia cu biceps sp. n. - Propodeum viewed from above about five times as broad as long ; hind tibial spur (Fig. 9) stout, slightly longer than basal segment of tarsus. Face about as long as broad ; basitarsus of middle leg at least two times as long as following segment (usually about three times in 9 9)- Europe, N. Africa platamonense sp. n. 3 Gaster elongate, conspicuously longer (1.5-2 times) than head and thorax together, strongly compressed though flattened dorsally ; tergite 3 at least as long as broad. N. America schwärzt ASHMEAD - Gaster at most equal in length to head and thorax together; tergite 3 always conspicuously broader than long 4 4 Ocelli large, the distance between hind ocellus and eye less than two times diameter of hind ocellus. N. America petulans MTJESEBECK - Distance between hind ocellus and eye at least two times diameter of hind ocellus 5 5 Hind tibial spur longer than hind basitarsus; first tergite of gaster conspicuously broader apically than long; gaster at most as long as thorax, hypopygium (fig. 8) arising at about the middle of the gaster. N. America vigilans COCKEBELL - Hind tibial spur at least slightly shorter than hind basitarsus; first tergite of gaster as broad apically as long. Gaster as long as thorax and head, hypopygium arising in the distal third of the gaster 6 ü Hypopygium deeply notched distally (figs. 3, 7). Germany. Mongolia berolinense RUTHE - Hypopygium shallowly emarginate distally. flat, polished and punctate .... 7 7 Maximum breadth of hypopygium (fig. 6) twice its length, the apical margin heart-shaped with a prominent fringe of stout hairs which are almost equal in length to the hypopygium. Luxembourg luxemburgense WASMANN - Maximum breadth of hypopygium about equal to its length, the hairs along the apical margin never longer than half the length of the hypopygium and usually conspicuously less than this 8 *E. bakeri ASHMEAD not included - based solely on males