66 INTrxODUCTORY REMARKS. 



Maxilla cornea, apice membranacea, 

 compressa, inflexa, labio multo 

 breviore, linguae lacinias exteriores 

 constituens. 



Labium porrectum, cylindricum, basi 

 corneum, apice membranaceum, in- 

 fiexLim, utrinque juxta flexiiram 

 setis duabus membranaceis, rectisy 

 rigidis, exteriore longitudine di- 

 midii labii, interiore brevissima, 

 compressa, incurva. 



j4ntenn(B breves, filiformes, subpetio- 

 Iati£ ; articulo primo paulo longiori, 

 secimdo basi attenuato, reliquis 

 a;qualibus, brevibus. 



Larva apoda, mollis, antice gibba, ob- 

 tiisa, postice attenuata. 



Puppa quiescens imagini simillima. 



fictus et larvae et imaginis e nee tare 

 florum. 



Character Artificialis. 



Os lingua trifida. 



Labium cylindricum maxilla longius, 

 utrinque setis duabus membranaceis, 

 AntermcB filiformes. 



Under this genus Fabricius has likewise arranged 

 insects that differ greatly from each other in their 

 Instrumenta cibaria. Thus Andrena bicolor, pili- 

 peSj lahiata, helvola, and h^morrhoidalis, are Me^ 



little 



