INTRODUCTORY PAPERS ON ICHNEUMONID^. 107 



-<- Aculeus about as long as the abdomen (female). 



66. sordida, 2 — 2|- lines, 

 -i--i- Aculeus about half of abdomen (male and female). 

 ••-<■ Aculeus slightly curved upwards. 



w 2nd segment of female quadrate. - 62. rufipes, 2-| — .3 lines. 



uj^ujr, 2nd segment one-third longer than wide. 47. viajalis, 2 — 3 lines. 



M75c^tc« 2nd segment twice as long as wide. - 23. dispar, 2 — 2f lines. 



1-H-+ Aculeus describing half a circle. - - curvicauda, 1^ line. 



c. Base and apex of hind tibiae dark. 



* Aculeus about half of abdomen. 



f Aculeus strongly curved upwards ; marks on hind tibiae faint 



(male and female). - - 34. jiexicauda, 1\ — li line. 



ft Aculeus slightly curved ; marks on hind tibiae black (male and 



female). 

 I Hind coxae black. ..... mterrup)ta, 2 lines. 



II Hind coxae red. ------ coxaUs, 3 — 3i lines. 



** Aculeus one-fourth of abdomen (female). - 58. imrvula, 2 lines. 

 B. Hind femora dark. 



a. Hind tibiae red. 



Front femora and tibiae red ; aculeus very short (male and 

 female). ----- 39. wwiolator, 2^ lines. 



b. Base and apex of hind tibiae dark. 



* 2nd segment of female transverse: middle of hind tibiae piceous ; 



aculeus very short (male and female), 

 f Hind tibiae in the middle-outside testaceous. 



69. tristis, 2^ — 3 lines. 

 If Hind tibiae red, . - - . 39. immolator, 2^ lines. 

 ** 2nd segment of female not transverse. 

 I Aculeus of female very short ; head transverse (male and female). 



55. obscurella, 2j lines. 

 II Aculeus of female one-fourth of abdomen (male and female). 



57. Pauiscus, 2^ lines. 



Ill Aculeus of female half of abdomen ; head subbuccated (male and 



female). 



§ Margin of 2nd segment castaneous. - 29. exigua, 1 — If line. 



§§ Margin of 2nd segment not castaneous. - cursitans, If line. 



c. Apex and before the base of hind tibiae dark. 



* Aculeus about half of abdomen (female). volubilis, about 2 lines. 

 ** Aculeus a little longer than 1st segment (female). 



lugubrina, 1^ — 2 lines. 

 *** Aculeus one-sixth of abdomen (female). - 7. annulata, 2^ lines. 

 **** Aculeus subexserted (male and female). 3. albipaljns, 2f — 35- lines. 

 B. Abdomen black, or almost so ; scape of antennae pale beneath. 

 A. Hind femora red; aculeus very short. 



a. Hind tibiae red, or apex dark. 



* Apex of 1st to 3rd joints of hind tarsi pale (male and female). 



65. sericea, 2j lines. 

 ** Hind tarsi entirely black (males), 

 f Cubito-discoidalnervure withanervelet. 53. nigritarsa,2\ — 3 lines. 

 ft Cubito-discoidal nervure without a nervelet. - ? clausa, 3 lines. 



b. Base and apex of hind tibiae dark ; hind femora partly red, 



generally piceous ; aculeus short. 



41. inquinata, 2 — 2i lines, female. 



