222 INSKCTA. 



The maxillae and labium arc not prolonged. The second cubital cell 

 is very small. The ovijjositor, and even the abdomen are short. 



MiCROGASTER, Lttt. * 



Our third and last division, corresponding to that of the Bassus 

 of M. Nees d'Esenbeck, has, like the first, four joints in the labial 

 palpi, but the maxillary palpi consist of more, that is to say of six. 

 The abdomen is semi-sessile. 



Here, the mandibles become gradually narrowed, and terminate as 

 in the preceding Insects, by two teeth, or in an emarginated or bifid 

 point. 



Helcon, Esenb., 

 Where the abdomen, viewed above, presents several annuli, termi- 

 nates in a long ovipositor, and is not concave beneath f . 



SiGALPHUS, Lat., 

 Where the abdomen is concave inferiorly, presents but three seg- 

 ments above, and the ovipositor is contracted and resembles a sting ]:. 



Chelonus, Jiir., 

 Where that part of the body,j otherwise almost similarly formed, 

 is inarticulated superiorly §. 



There, the mandibles are almost square, with three teeth at the ex- 

 tremity, one in the middle, and the others formed by the projection 

 of the angles of the terminal margin. 



Alysia, Lat. II 

 We have not yet been able to examine thoroughly, various other 

 genera established by Messrs. Gravenhort and Nees d'Esenbeck, in 

 their Conspect. Gen. et Fam. Ichneum., and consequently have not 

 thought it proper to sj^eak of them. That called Anomalon by Ju- 

 rine, must be suppressed. It is a sort of general receptacle, where he 

 has placed all those Ichneumons in which the second cubital cell is 

 wanting, withovit paying any attention to other organic differences. 



In the second tribe, the Gallicol.'e, Di'ploleparice, Lat., we find 

 but a single nervure in the inferior wings. The superior present 

 some cells or areolae, viz. two at their base, the brachials, but of which 

 the inner one is usually incomplete and but slightly marked, another 

 radial and triangular, and two or three cubitals, of which the second, 

 where there are three, is always very small, and the third very large, 

 triangular, and closed by the posterior margin of the wing. The an- 

 tennee are of equal thickness throughout, or gradually enlarge, but 



* Lat., Ibid. 



f N^es d'Esenb., Conspect. Gener. et Famil. Ichneum.. p. 29. 

 + Ibid. ; Lat., Ibid. 



§ Lat, Ibid. ; and the Conspect., &c., of N^es d'Ensenb. 



II Lat., Ibid. This subgenus appears to connect , itself with the Gallicolte ; here 

 the mandibles are always dcntated on the inner side. 



