380 CLASS VIII. 
Bracon Fasr. (in part), Larr. Clypeus exscinded, a hiatus 
being left above the mandibles. Maxillary palps quinquearticulate. 
Head transverse or subglobose. 
Sp. Bracon impostor Nees, Bracon denigrator Fasr. (excl. syn. L.), 
Panzur, Deutschl. Ins. Heft 45, Tab. 14, &c. 
Rogas Neus. (See Westwoop, 1. 1. p. 64 for other sub-genera). 
Sigalphus Latr. (Chelonus JuRINE). Clypeus entire. Abdo- 
men fornicate beneath, triannulate above, or continuous, no vestige 
of incisures remaining, with all the segments united into one. 
Maxillary palps sexarticulate, labial shorter, quadriarticulate. 
Sp. Sigalphus irrorator, Cryptus irrorator FaBr., DE Gurr, Jns. 1. Tab. 36, 
fig. 12; Guérin, Jcognogr., Ins. Pl. 68, fig. 9 (in this figure the division 
of the nervures in the wings is incorrectly represented as though there 
were a second recurrent nerve, as in the /chnewmones genuini); 43 lines 
long ; expanded wings 8 lines ; abdomen glistering at the extremity with 
brownish green from fine smooth hairs, wings brownish with blacker exter- 
nal margin and a white spot in the middle under the radial cell. The 
larva, according to Dr GEER, lives in the caterpillar of Noctua psi, 1. 1. 
Pp: 577: 
FHelcon NEES. 
Microgaster LATR. 
Note.—For other genera and sub-genera, here omitted on account 
of our limited space, the works recommended above may be con- 
sulted. 
B. Ichneumones genuinit. Recurrent nerves two, one dividing 
the area situated under the cubital cells. First cubital cell large, 
confluent with the first discoidal cell; second cubital cell rhombic, 
pentagonal or trigonal, very small, in some none. Maxillary palps 
with five joints, labial palps with four joints. 
In this division no such small species occur as in the preceding 
(ex. gr. the genus Aphidius). The larve live principally in cater- 
pillars. Some species do not lay their eggs i the caterpillars, but 
fasten the eggs, which are provided with a pedicle for the purpose, 
on the skin of the caterpillars. See Harria, UVeb. d. gestielten Hier 
der Schlupfwespen, W1ncMAnn’s Archiv, 1837. s. 151—158. Taf. rv. 
GRAVENHORST has described more than 1600 species of Jchnewmones genuini ; 
a number which will be continually increased by fresh observers. 
