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INTRODUCTORY PAPERS ON ICHNEUMONID. 915 
2nd and 38rd segments entirely yellow; hind femora black; tibie 
yellow, apex of hinder one black. 
3rd abdominal segment transverse. - 54. caloscelus, 5—6 lines. 
3rd segment subquadrate. 
Margins of cheeks subdilated or reflexed below the base of the 
mandibles. 
Apex of clypeus truncated. - 385. bucculentus, 6—9 lines (a). 
Apex of clypeus slightly emarginate and depressed. 
36. suspiciosus, 6—9 lines. 
Margin of cheeks not dilated below the base of the mandibles. 
§ Frontal orbits marked with yellow. 
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Front coxee and trochanters black or spotted with yellow. 
37. gracilentus, 5—6 lines (a). 
Front coxe and trochanters entirely yellow. 
40. inquinatus, 64 lines. 
Frontal orbits not marked with yellow; front coxe black. 
Mouth, clypeus, and face yellow. - 34. confusorius, 6—7 lines. 
Sides of face, and sometimes two spots near the upper part yellow. 
42. luctatorius, 6—S8 lines. 
Vertical orbits as well as mouth, and face yellow; front coxe, 
trochanters, and femora black, more or less yellow at the 
apex (the yellow segments have at times a black triangular 
spot). - : 121. dissimulator, 9-—10 lines (a). 
. 2nd and 3rd abdominal segments yellow, more or less marked with 
black. 
Hind legs black, tibiz with a whitish streak towards the base. 
Apex of Ist, 2nd, and 8rd segments yellow, 2nd with two black 
dots on the disc. . - - 112. binotatus, 4 lines. 
Hind legs, black and yellow variegated. 
External orbits without pale marks. 
Srd abdominal segment with a short basal black band; 8rd 
segment subquadrate. - 388. terminatorius, 6—9 lines. 
2nd and 8rd segments more or less black at the base; 3rd segment 
transverse. - 28. molitorius, 6—-9 lines (a). 
2nd and 3rd segments with a subtriangular dorsal black mark. 
41. bisignatus, 8 lines. 
2nd segment pitchy red, basal sides and a transverse line before 
the margin black; 8rd extreme margin and lateral spot 
obsoletely stramineo-ferruginous. 51. piceatorius, 6 lines. 
External orbits pale marked. 
Abdomen varies from 2nd—s8rd segments more or less yellow, or 
abdomen yellow, apex black, to quite black; gastroceli none. 
: 75. coruscator, 4—6 lines. 
. 2Ind—4th abdominal segments yellow, 4th sometimes marked 
with black. 
Femora almost entirely yellow. 48. primatorius, 1O—11 lines. 
Greater part of femora black. - 44. minutorius, 4—42 lines. 
Section 11.—Scutellum pale, apex of abdomen, and most of the middle, 
A. 
a. 
spotted with yellow, or with yellow or white bands. 
Antenne white-ringed (females). 
All the segments with pale margins; greater part of legs yellow 
(*) or orange (***), 
