HYMENOPTERA. ICHNEUMONID£. 57 
Family 3. ICHNEUMONID& Leach. (Hal. Entomotilla Dum.) 
Subfamily 1. Jchneumonides Westw. (Ichneumones genuini 
Grav.) 
ICHNEUMON Linz., Grav. -————_ 224 sp. J. comitator Linn. 
Abdomen oblong-ovate, basal segment rough ; ovipositor not exserted; seutellum 
flat; antenne simple; outer cell complete; areolet distinct, 5-sided. Curtis 728. 
STILPNUS Grav. 5 sp. 8. gagates Gr. Curtis, 388. 
Outer ceil incomplete ; areolet distinct, 5-sided; abdomen ovate, depressed, very 

shining, basal segment linear ; ovipositor not exserted ; scutellum flat ; antenna 
simple. 
ISCHNUS Grav. 
Abdomensubcylindrical, smooth ; petiole linear ; antennz simple ; areolet 5-sided ; 
Ovipositor very short; scutellum flat. 
BRACHYPTERUS Gr. ———— 1 sp. B. means Gr. Steph. pl. 40. f. 2. 
Wings very short; areolet wanting; abdomen oblong-ovate ; antennz simple 
ovipositor scarcely exserted. 
MICROLEPTES Gr. l sp. M. splendidulus Gr. St. pl. 40. f. 3. 
Head subglobose; areolet wanting ; abdomen robust, petiolated; legs and an- 
tennz thickened ; ovipostor not exserted. 
ACRODACTYLA QAal. Baryrus Hal. MSS., Curt. Guide., 2d ed. 2sp. B. 
degener Fal. 

3 sp. I. porrectorius Fab. 

Abdomen attenuated at the base, intermediate segments obsoletely compressed ; 
anus @ slit; ovipositor exserted, short; areolet wanting ; tarsi thick at tip ; 
“ungues lobed beneath. : 
MESOLEPTUS Grav. Icuneumon p. Fab. 62 sp. M. narrator Gr. Curt., 644. 
Abdomen smooth, shining, with a long petiole ; ovipositor not exserted, areolet 
wanting or very small, legs and antenne slender, 
TRYPHON Fallen. Icuneumon p. Linn. 99 sp. T. rutilator, Linn. Curt. 399. 
Posterior tarsi slender ; face flat ; abdomen oblong, subsessile ; ovipositor not ex- 
serted ; scutellum flat ; areolet subobsolete, triangular or suborbicular ; antenne 
slender or moderate ; legs moderate. 
CTENISCUS Hal. MSS., Curt. Guide, 2d ed. 3 sp. C. Curtisii Hal. 
Characters of Tryphon, but with the fore tibiae one-spurred, intermediate one- 
spurred, and posterior without spurs. 
EXOCHUS Gr. Hyrsicera Latr. R. An. 19 sp. E. antiquus Gr. 
Face with a frontal tubercle, abdomen subsessile, oblong-cylindrical ; areolet ob- 
solete, or small and triangular ; ovipositor not exserted ; scutellum fat; legs 
short and thick. 
PERIOPE Hal. -———— 1 sp. P. auscultator Hal. 
Abdomen subpetiolated, compressed at tip, elongate, fusiform; ovipositor con- 
cealed; thorax and antenne very short; face protuberant ; legs short; spurs 

1. 2. 1.; ungues denticulated; areolet minute, subtriangular. 
SCOLOBATES Gr. 1 sp. S. crassitarsus Gr. 
Posterior tarsi thickened ; face flat ; abdomen subsessile ; basal segment gradually 

narrowed ; ovipositor not exserted ; scutellum flat; areolet wanting. 
SPHECOPHAGA Westw. Anomaton p. Curt. nec Jur. Grav. 1 sp. A. vesparum 
Hind legs robust ; abdomen sessile, broadly ovate ; ovipositor not exserted ; areolet 
wanting. Curt, 198. 
