INTRODUCTORY REMARKS. 63" 



arrangement of them primJ fade appearance could 

 have been the only guide which Fabricius con- 

 sulted. That one, who makes every thing depend 

 upon these parts, should pay no regard to them 

 himself is scarcely tolerable. Had he inspected 

 the ^pes he has inserted into this genus, he would 

 have discovered that they were distinguished from 

 the rest not only by their proboscis, but also by 

 their lip, {Clypeus, Fab.) : since they form a sub- 

 division of that family in which this part is inflect- 

 ed (/?) ; in Hijlaus maxillosus it is remarkably 

 elongated (o). 



ANDRENA. Character Naturalis. 



Os maxillis, palpis, linguaque inflexa 



trifida. 

 Palpi quatuor insequales, filiformes* 

 Anteriores pofrecti, longiores, sex- 

 articulati articulls cylindricis, 

 cequalibus, adhserentes flexura^ 

 maxilliE. 

 Fosteriores brevissimi, biarticulati 

 articulis aequalibus, cylindricis, 

 sub apice setarum labii inserti. 

 Mandibula recta, cornea, fomicata_^ 

 inermis. 



(«) Tab. 10. ^*. c. 2. 5. fig. 13. c. (o) Tab. 9. **. 



c. 2. y. fig. 2, b. In this figure the lip is represented in the 

 situation it assumes when the proboscis is unfolded ; when that 

 organ is folded^ the lip is inflected, and covers it, 



B" Maxilla 



