732 



ENTOMOLOGY. 



The following divisions are proposed by Latreille, 

 who has submitted these insects to a scrupulous and 

 daily investigation. 



Division A. 

 Abdomen but little or not at all compressed. 



Subdivision a. 

 Extremity of the abdomen of the female compressed, 

 and obliquely truncated ; oviduct exscrted. 



1. * Abdomen cylindric, with a very short peduncle. 



Genus Pimpla of Fabricius. 



2. ** Abdomen somewhat ovoid, with the peduncle 



long, slender, and arcuate. 



Genus Cryptus of Fabricius. 



Subdivision b. 



Extremity of the abdomen of the female slightly 

 compressed, not obliquely truncated ; oviduct scarcely 

 prominent or exserted. 



3. * Abdomen cylindric, almost sessile. 



Genus Metopius of Panzer; Pelastes of Illiger. 



4. ** Abdomen almost fusiform or cylindric, gradu- 



ally narrower towards the base; the peduncle 

 not slender or arcuate. 



Genus Alomya of Panzer. 



5. *** Abdomen ellipsoid or ovalate, with the pe- 



duncle slender and arcuate 

 Genus Ichneumon of Fabricius. 



Division B. 



Abdomen very much compressed. 



6. * Abdomen, apex truncate in the females. 



Genus Ophion of Fabricius. 



7. ** Abdomen with the apex pointed. 



Genus Banchus of Fabricius. 



Genus DXXXII. Acjenitus. Latr. 

 Chyptus. Fabr. Panzer. 

 Ichneumon. Schaeffer, Scopoli, Oliv. 

 Anomalon. Jurinc. 



Palpi with their joints not very unlike each other. 

 Oviduct covered at its base by a large scale. 

 S/i. 1. Dubilalor. 



Cryfitus dubitator. Fabr. Panzer. 

 Acanitus dubitator. Latr. 

 Inhabits Germany. 



Subdivision 2. 



Superior wings with the first submarginal cell small, 

 or moderately sized; the two discoidul cells placed in a 

 transverse line by the side of each other. 



Genus DXXXIII. Bracon. Jurine, Fabr. Panzer, 

 Illiger, Spinoli, Latr. 



Ichneumon. Linn. Scopoli, Schrank. 



Vipio. Latr. (Rejected name). 



Mouth produced into a rostrum. Superior wings 

 with the two first submarginal cells nearly equal, square. 



Sfi. 1. Dcsertor. 



Bracon desertor. Fabr. Latr. 



Genus DXXXIV Agathis. Latr. 



Ichneumon. Jurine. 



Bhacon. Fabr. Spinoli. 



Mouth produced into a rostrum. Superior wings with 

 the second submarginal cell very small. 



Sfi. 1. Panzeri. 



Ichneumon fianzeri. Jurine. 



Jgathis fianzeri. Latreille. 



Genus DXXXV. Microgaster. Latreille, Illiger, 

 Spinoli. 



Ichneumon. Linnaeus, Fabricius, Jurine, Rossi. 



Ceropales. Fabricius. 



Cryptus. Fabricius. 



Bassus. Panzer. 



Mouth not produced. Abdomen very small and de- 

 pressed. Oviduct short. Superior wings with one mar- 

 ginal cell nearly obsolete in some, and three sub-marginal ; 

 the second minute, the last terminal imperfect. 



Sfi. 1. Defirimator. 



Ichneumon defirimator. Fabricius. 



Microgaster defirimator. Latreille. 



Inhabits Germany. 



Division II. 



Abdomen almost inarticulate, with but three distinci 

 segments. 



Genus DXXXVI. Sigalphus. Latreille, Spinoli. 



Sphjeuopyx. Hoffmansegg. 



Cryptus. Fabricius. 



Ichneumon. Fabricius. 



Chelonus. Jurinc, Panz. Illiger. 



Buacon. Jurine. 



S/i. 1. Irrorator. 



Sigalfihus irrorator. Latreille. 



Cryjitus irrorator. Fabricius. 



Family III. Alysiada. 



Mandibles tridentate at their extremities, forming an 

 irregular square. 



Genus DXXXVII. Alysia. Latr. 



Cryptus. Fabricius. 



Bassus. Panzer. 



Bracon. Jurine. 



Ceohenus. Illiger. 



Sfi. 1. Manducator. 



Cryfitus manducator. Fabricius. 



Bracon manducator. Jurine. 



Bassus manducator. Panzer. 



Inhabits Germany. 



" Tribe X. Diplojlepides. 

 Abdomen inserted to the thorax by a part only of its 

 transverse diameter. Inferior wings without distinct 

 nerveurs. Body not contractile into a sphere. Abdomen 

 compressed or depressed. Oviduct filiform. Palpi ve- 

 ry short. Antennae filiform, straight, from thirteen to 

 sixteen-jointed. 



Family I. Difdolefiida. 



Abdomen very shortly, or not at all pedunculated. 



Genus DXXXVIII. Ibalia. Latreille, Illiger. 



Banchus. Fabricius. 



Sagaius. Panzer. v 



Cynips. Jurine. 



Abdomen very much compressed, knife-shaped. An- 

 tennse filiform, joints cylindric. 



Sfi. 1. Cultellator. 



Ibalia cultellator. Latreille. 



Banchus cultellator. Fabricius. 



Sigaris cultellator. Panzer. 



Inhabits Germany and the south of France. 



Genus DXXXIX. Diplolepis. Geoffroy, Olivier, 

 Panzer, Illiger. 



Cynips. Linnaeus, Scopoli, Illiger. 



Abdomen with the inferior part compressed, triangu- 

 lar-ovoid. Antennse filiform, joints cylindric. 



