292 Mr. T. D. A. Cockerell on new Bees , 



segment basally with a very thin inconspicuous pale hair- 

 band ; extreme sides with rather long pale hairs ; ventral 

 segments with thin fringes, centi-ally black, laterally pale; 

 fifth segment dorsally with an interrupted series of pale 

 hairs, hardly forming a band. Punctuation of abdomen 

 sparse. 



Six specimens, San Rafael, March 11 ; Paso de Telaya, 

 April 7 and 8. Three on no. 27, a labiate ; one on flower 

 no. 1. 



Seems to be allied to M. duhitata^ Cresson, from Georgia. 

 It has some superficial resemblance to Synhalonia atnventris. 



(10) Melissodes raphaelis, sp. n. 



^. Length about 10 raillim. ; antennse 7 millim. Black; 

 clypeus (except the usual black dots and the more or less 

 rufescent anterior edge), labrum, and a rather obscure spot 

 on mandibles yellow. Flagellum ferruginous beneath, its 

 first joint not longer than funicle and hardly one eighth as 

 long as second. Head broad, face broader than in labiatarum. 

 Face, occiput, and cheeks with long but rather thin pale 

 greyish-ochreous pubescence, white on cheeks beneath, 

 slightly mixed with black on sides of face and conspicuously 

 on occiput just behind the ocelli. Thorax shining, strongly 

 but sparsely punctured; median groove of mesothorax 

 distinct. Thoracic pubescence thin, pale greyish ochreous, 

 black on scutellum and disk of mesothorax, mixed with black 

 on sides of metathorax. Tegulee black, mostly naked. 

 Wings greyish hyaline, darkest apically ; nervures black ; 

 second submarginal cell oblique, third submarginal narrowed 

 variously one half or two thirds to marginal. Claw-joints 

 rufous, but the claws black except at base. Pubescence of 

 legs thin and pale, rufous on inner sides of basal joints of 

 tarsi, white on outer sides of basal joints of hind tarsi, white 

 in front and black behind on hind tibise. Abdomen shining, 

 sparsely punctured ; base of first segment with erect pale 

 pubescence, bases of remaining segments with broad but thin 

 pale bands of short pubescence, often largely worn away; 

 dark portions with inconspicuous black hairs. Apical 

 segment with a little black or very dark fuscous pubescence. 

 Apical truncation rather broad. Subapical teeth short. 



Seven specimens, San Rafael, March 8, 11, 13, and 15; 

 on flowers nos. 1, 7, 5, and 10. The last is an Ipomoea. 



M. raphaelis will be readily known by the peculiarly 



