408 



COLLETID.^:, 



Tribe ANTHOPHILA. 



Family COLLETIDJ^. 



Nou-social bees usually of small size. Head elongate or sub- 

 triangular ; the tongue sliort, broad, obtuse and emarginate at apex ; 

 thorax and abdomen ovate. 



No parasitic forms are known in this family, of which only two 

 genera are found within our limits. 



Key to the Genera. ■ 



a. Fore wing with three cubital cells Colletes, p. 408. 



h. Fore wing with two cubital cells Pijosopis, p. 409. 



Genus COLLETES. 



Colletes, Latr. Hist. Nat. Ins. iii, p. 372 (1802). 



Evodia, Panz. Krit. Eevis. Faun. Deutschl. n, p. 207 (1806). 



Type, C. succincta, Linn. 



Range. Both hemispheres. 



Head from front subtriangular, ocelli arranged in a slightly 

 curved line nearly straight on tbe vertex ; antennae filiform ; 

 tongue broad, shghtly emarginate at apex; the labial palpi 

 4-jointed, each joint slightly thickened at apex ; maxillary palpi 

 6-jointed, nearly equal. Thorax steep or truncate posteriorly, wi th 



1 2 3 



Fig. 127.— Colletes. 1, maxilla; 2, labium ; 3, face from front. 



the basal space more or less rugose : fore wings with one radial and 

 three cubital cells ; the 1st cubital neai-ly equal in length on the 

 cubital nervure to the 2nd and 3rd united, the 2nd slightly narrowed 

 towards the radial cell, receiving the 1st recurrent nerviu'e near 

 the middle : the 3rd cubital cell restricted above towards the radial, 

 about half as wide above as below, receiving the 2nd recurrent 

 nervure in its apical half ; legs of moderate size, pubescent, the 



