Vol. XXvi] ENTOMOLOGICAL NEWS 411 



queen, H. H. Smith coll.) ; Quezaltenango, Guatemala, 7,000 

 ft. (2 workers, G. C. Champion coll.). 



The malar space of the females of this species is only a little more 

 than one-fourth as long as the eye, and that of the male is fully a 

 fourth as long as the eye. The third antennal segment of the male is 

 only a little longer than the fourth. The male before me has the 

 fourth dorsal abdominal segment entirely dark except for a faint 

 fringe of very short pale hairs along its apical margin, the fifth seg- 

 ment dark except for a strong fringe of ferruginous hairs along its 

 apical margin, and the sixth and seventh segments with mostly ferru- 

 ginous pile. 



Bombus trinominatus D. T. 



There are three queens of this species from the collection 

 of the British Museum before me, all from Omilteme, Guer- 

 rero, Mexico, 8,000 ft. alt. (H. H. Smith). 



These specimens are from 17 mm. to 18 mm. in length. They have 

 the apical margin of the fifth dorsal abdominal segment fringed with 

 ferruginous pile and the clothing of the sixth dorsal segment is mostly 

 of the same color. This fringe of the fifth segment and clothing of 

 the sixth are, without doubt, normally ferruginous, instead of yellow 

 as they have previously been described. The apical margins of the 

 four middle ventral segments are fringed for the most part with 

 pale hairs. 



Bombus brachycephalus Handl. 



There are four queens of this species from the collection of 

 the British Museum before me. Two of these specimens (from 

 Omilteme, Guerrero, Mexico, 8,000 ft. alt.), are typical in their 

 characters, and, as the description of the females of this spe- 

 cies given in my monograph. (Trans. Amer. Ent. Soc. xxxix, 

 10,13, p. 143) is meagre. I will describe the queen more in de- 

 tail here : 



Queen. Head. Face mostly black, but the frons with a general, 

 though inconspicuous, admixture of short stramineous pubescence. 

 Occiput and cheeks entirely dark. Malar space distinctly shorter than 

 its width at apex, slightly more than one-sixth as long as the eye. 

 Clypeus moderately and coarsely punctate. Ocelli large and placed 

 considerably below the supra-orbital line, almost exactly in the nar- 

 rowest part of the vertex, the lateral ones being much nearer to the 

 margins of the eyes than to each other. Flagellum of antenna about 

 one and two-thirds times as long as the scape. 



Thorax. Entirely black. A large area around the center of the 

 dorsum naked, smooth and shining. 



