SYSTEM OF INSECTS. 



stemmata between the eyes ; the prothorax is conspi- 

 cuous, and behind is producted into a long scutelliform 

 process, under which all the parts also are analogous ; 

 the abdomen articulates with the trunk in the same way, 

 is similar in shape in both, and consists of short inoscu- 

 lating segments. Some tydgoridce and Truxalidcs agree 

 also in their producted front. Other analogous charac- 

 ters might be named between these tribes, but these are 

 sufficient to confirm M. Savigny's opinion. That the 

 Neuroptera present analogies to the Lepidoptera, though 

 they differ so widely from them in their metamorphosis 

 and habits, is evident from the instance lately adduced 

 of Ascalaphus italicus, which was described as a butterfly 

 by Scopoli a ; and many of the Libellulina, by their wings, 

 partly transparent and partly opaque, and by the shape 

 of those organs and of their bodies, imitate the Helico- 

 nian butterflies : and this resemblance is much more 

 striking than any that occurs between the perfect insects 

 in the Neuroptera and Homopterous Hemiptera. With 

 regard to the Hymenoptera and Diptera the analogy is 

 undisputed, and must strike every beholder ; and one 

 would almost say it was a real affinity, were it not that 

 the resemblance is not only general between Order and 

 Order, but that almost every Hymenopterous tribe has 

 its counterpart amongst the Diptera ; the saw-flies b 

 for instance, the ichneumons, the various false-wasps c , 

 the false-bees d , the bees, the humble-bees, the ants, 

 &c., severally find there a representative that wears 



a Ent. Cam. 168. n. 446. 



b Meigen has figured a Dipterous insect exactly resembling a dm. 

 box, which he calls Aspisles bcrolincmis (Dipt. i. 319. t. xi./. 16, 17.) 

 c Freedoms Lntr., &c. d Andrcna F,, &c. 



