76 INTRODUCTORY REMARKS. 



examining (a:). What it may be in the family to 

 which N. scutellaris belongs I am not able to say. 

 The Mandihula are entire only in the two families 

 of j4pis. In N. gibba they are deeply bifid at the 

 apex in one sex(j/). The terms " cyUndricum et 

 elongatum" will apply only to the labium of the 

 genuine ^pes. 



From this review of what Fabriciiis has done in. 

 this genas^ one is almost led to suppose that he 

 formed his Natural Characters, " uncUque coUatis 

 membris" and took one member from the proboscis 

 of an insect of one family, a second from that of 

 another, and so on. If this be the case it is a vain 

 attempt to conjecture from what individuals such 

 jarring definitions were derived. 



cujus, velut oegri somnia, vnnre 



Fingentur species : ut nee pes nee caput uni 

 Reddatur formae. 



It must now, I think, be evident to every un- 

 prejudiced examiner, that this author has commit- 

 ted perpetual and unaccountable mistakes in the 

 genus in question. That, in the arrangement of 

 species, instead of abiding by his own characters, 

 in a class of insects in which the Ivstriimenta ciba- 

 ria are very easy to be examined, he has been led 

 solely by habit, or laiher prima facie appearance: 



(t) Tab. 2. **. a. fig. 1. gg. Tab. 3. **, c.fig. 5. cc. Tab. 5. 

 *.b. fig.S.i-. Tab.6. **. b. fig.3. l. ( //) Tab. 2. x*. a. 



fig. 6. 



that 



