Cockerell — New American Bees. 179 



hair of middle of fifth abdominal segment, and of apex, black, much less 

 white at sides of fifth than in S.fouieri. Hind spurs straight and normal. 

 From 5. belfragei it is known among other things by its much smaller size, 

 and the tint of the white abdominal bands, which have not the peculiar 

 bluish tint of belfragei. 



Habitat. — Oak Creek Canyon, Arizona, 6,000 feet. August. F.H. Snow 

 1997. 



Synhalonia gillettei snoviana subsp. nov. 



Male. — Smaller, length about 13 mm., antennae about 10.5 mm.; tarsi fer- 

 ruginous, the basal joints very dark ; basal joint of hind tarsi slender, 

 scarcely broader than second joint; second submarginal cell much shorter, 

 so that its lower side does not greatly exceed the outer. Resembles -S. 

 lepida Cr., in having the mesothorax shining and punctured, and the man- 

 dibles with a very small yellow spot, but is much larger than lepida, and 

 otherwise different. 



Habitat.— Oark Co., Kansas, 1,962 feet. June. F. H. Snow 1185, 



Synhalonia lippise semilippise subsp. nov. 



Female. — Hair on inner side of basal joint of hind tarsi dark fuscous 

 with a little ferruginous at extreme base (in lippise it is entirely dull fer- 

 ruginous); maxillary palpi 5-jointed, with three long joints and two small 

 apical joints, these two combined a trifle longer than the third ; hair of 

 thorax above more ochraceous, and some of the hair on scutellum even 

 stained with fuscous. The maxillary palpi are those of A'fiiog'tossorfe.s rather 

 than of Sipihalnnia, and in my tables the insect runs to Xenoglossodes^ ex- 

 cnnrnii, from which it is easily known by the entirely black flagellum, and 

 the patches of white tomentum at the sides of the fifth abdominal segment. 



Habitat. — Oak Creek Canyon, Arizona, 6,000 feet. August. F. H. Snow 

 1989. 



Melissodes pecosella sp. nov. 



Female. — Length slightly over 10 mm.; facial quadrangle broader than 

 long, but not excessively broad ; eyes blue-gray ; apical part of mandibles 

 with a yellowish stripe ; flagellum very dark reddish beneath ; hair of head 

 white and abundant, some black hair on vertex; hair of thorax above 

 ocliraceous, black on posterior part of mesothorax and disc of scutellum ; 

 tegulee black, with ochraceous hair; wings dusky, nervures black or nearly 

 black ; hair on basal joint of hind tarsi within black or very dark fuscous, 

 at the apex with a reddish tint ; scopa of hind legs white, copious ; abdomen 

 with three broad bands just as in pallidicincta ; the two apical segments 

 covered with black hair, a tuft of white on each extreme side of fifth. In 

 most of its characters it agrees with M. .'iphxralciy CkU., but the abdomen 

 is rather narrower, with broader hair-bands, and without the characteristic 

 shining appearance o{ sphaeralcese ; the hair on inner side of basal joint of 

 hind tarsi is differently colored (ferruginous in sphaeralcese); the black hair 



