Records of Bees. 331 



pale, as in type, of abdomen (except at base and apex) sub- 

 appressed and very bright orange-fulvous ; hair of abdomen 

 beneath and at extreme sides practically all black. 



Hub. Troublesome, Colorado, at flowers of Salix, June 8, 

 1908 (S. A. Rohioer). 



The characters of this variety make it resemble the Euro- 

 pean A.fulva. The size and form and small elypeal punc- 

 tures readily separate it from A. hitei. The varietal name is 

 from a Malay word for red. Mr. Rohwer also took Andrena 

 erylhroyastra (Ashm.) at Troublesome on ilowers of Salix. 



Sphecodes sulcatulus, Okll. 



A female from Troublesome, Colorado, June 9, 1908 (S. A. 

 Rohwer), is smaller than the type and lacks the median 

 groove on first abdominal segment, but is evidently con- 

 specific. The species is noticeable for its shining thorax. 



Titusella pronitens, Ck.ll. 



The females were found commonly at Florissant this year, 

 visiting the flowers of Senecio cymbularioides during the 

 latter part of June. 



A second species of this genus is Titusella cubiceps (He- 

 riades cubiceps, Cresson) from Nevada ; distinguished by its 

 white ventral scopa and clear wrings. 



Bombomelecta pacifica (Cresson). 



Florissant, Colorado, June 12, at flowers of liibes, 1 $ 

 (S. A. Rohwer). 



The B.fulvida, common at Boulder, seems to be only a 

 race of pacifica, as Cresson held. 



Melissodes martini hitei, subsp. n. 



$ . — Differing from M. martini, Ckll. (from New Mexico), 

 by the total absence of black hair on thorax above, the 

 presence of black hairs on vertex (occasionally martini has a 

 few), the soot-coloured hair on middle basitarsus, and the 

 hind basitarsus with the hair on its inner side ferruginous at 

 base, but otherwise dark fuscous. The abdominal hair-bands, 

 as in martini, are pure white. 



In my tallies in Trans. Am. Ent. Soc. 1906, if placed with 

 the species having the hair on hind basitarsus ferruginous, it 



