INTRODUCTORY PAPERS ON ICHNEUMONID2. 2138 
Scutellum with two white apical spots. 
10. lineator, 6—8 lines (E, s, l, a). 
+--+ No pale marks before the scutellum. 
19. castaneiventris, 53—8% lines, (1, a). 
«k Post-petiole entirely punctated. 
4 Gastroceli scarcely any. 1Ist—4th abdominal segments and tibize 
red, apex of hinder one black. 105. semirufus, § 33—4 lines. 
++ Gastroceli small, but tolerably distinct; middle of abdomen, and 
apex of Ist segment sometimes, red; legs vary; generally a 
pale line before and beneath the wings. 
97. bilunulatus, 24—4 lines (h, t, l, a). 
Section 9.—Scutellum black, abdomen red or red and black. 
A. Abdomen red, basal segment more or less black (females). 
a. Antenne white-ringed ; greater part of legs black. 
Post-petiole smooth, gastroceeli none. 
* Petiole pitchy. - - - - 126. gasterator, 4—5 lines. 
** Ist segment black, apex sometimes red. 
75. coruscator, 34—44 lines. 
. Middle of abdomen entirely red (females). 
. Frontal orbits pale; front femora, tibie, tarsi, and apex of hind 
tibiz red. - 3 - - 13. hesitator, 4 lines. 
. Frontal orbits black; legs dark; tibiee red (*) or obscure red (**). 
: Gastroceeli moderately deeply impressed. 
28. culpator, 7—10 lines (a). 
** Gastroceli scarcely impressed ; front femora and tibize with whitish 
marks. - - - - - 103. apricus, 44 lines. 
C. Margins of all the segments and legs red. 
129. maculicornis, 24 lines. 
D. 2nd segment red, 38rd—6th more or less marked with black, 7th 
red or black, legs more or less red or black. 
19. castaneiventris, 54—64 lines (J, a). 
K. Four basal segments light pect red; legs red, hind coxee faintly 
o & 
x > 
spurred. - - - 138. picipes, 24 lines. 
F. Four basal segments bright red; tibiz and femora red, apex of 
hinder one black. — - - - 124. femorator, 5 lines. 
A. Antenne white-ringed, or some of the middle joints marked with 
white above (males). 
a. Thorax without white marks; middle of abdomen red; legs dark. 
* Face black. - - - 23. culpator, 7—10 lines (ant). 
* Hace white. - - - 82. albilarvatus, 43—9 lines (a). 
b. Thorax with white marks against the wings; margins of all the 
segments and legs red. - 129. maculicornis, 24 lines. 
B. Antenne without white marks in the centre (males). 
a. Face and thorax with white marks. 
* Basal segments of abdomen black; apical ones, femora, tibiee, and 
tarsi red. - - - 151. melanopyrrhus, 74 lines. 
«& 2nd segment and basal angles of 3rd red; legs black, front ones 
with whitish marks — - : - 1038. apricus, 44 lines. 
b. Face and clypeus more or less white; thorax black; base of hind 
femora and tibie red. - 45. latrator, 24 £34 lines (a). 
c 
Face and thorax without white marks, 
