HENRY J. FRANKLIN. 85 



Boinl)us (Bonibus) laticiiictiis new species. 

 Types. — Described from seven worker cotypes and one 

 male type, all collected by C. H. T. Townsend in Meadow 

 Valley, head of Rio Piedras Verdes (six miles south of Colo- 

 nia Garcia), Sierra Madre of western Chihuahua, Mexico — 

 about 7,000 feet altitude. Of these specimens, one worker 

 is deposited in the collection of the Massachusetts Agricul- 

 tural College and the remainder in the collection of the 

 United States National Museum. 



Much like huntii, but zvith a >uuch rvider black interalar band. 



Quee7i. — Unknown. 



Worker. Head. — Face largely covered with yellow pile from the 

 basal portion of the clypeus to some distance above the bases of the 

 antennae, this yellow pile with, at most, very little dark hair admixed 

 and not nearly reaching the margin of the eye on either side. Occiput 

 bearing a triangle of yellow pile, with or without an admixture of dark 

 hairs. Sides of the head mostly dark. Malar space slightly shorter 

 than its width at apex, about one-fifth as long as the eye. Clypeus 

 coarsely but, for the most part, sparsely punctate. Third antennal 

 segment much longer than the fifth ; the fifth somewhat longer than 

 the fourth. 



Thorax. — Dorsum with a very broad black band between the bases 

 of the wings, otherwise clothed with yellow pile ; the black interalar 

 band distinctly more than one-half as wide, from front to rear, as long, 

 from wing base to wing base ; the center of the disc, in the middle of 

 the black band, with a naked, mostly smooth area. Mesopleura 

 covered with yellow pile. Sides of median segment sometimes clothed 

 with pure pale yellow pile and sometimes with a mixture of dark and 

 yellow hairs. 



Abdomen. — Dorsum : segments one and four clothed with yellow 

 pile ; segments two and three with ferruginous-red pile ; segments five 

 and six with biack pile. Venter mostly dark, but with apical fringes 

 of middle segments pale yellow. Neither the epipygium nor the hypo- 

 pygiura with a median carina. 



Wings. — Only slightly infuscate, almost clear transparent. 



Z.^^5.— Somewhat variable. Clothing of tibiai, including corbicular 

 fringes, black. The femora mostly black, but the lower sides of the 

 basal portions of all three pairs often bearing some pale yellow hair. 

 The trochanters sometimes entirely dark, but often clothed with more 

 or less yellow hair on their lower sides. At least the middle and hind 

 coxse usually with some yellow pile. 



Male. Head. — Rather elongate. Face, aside from a sprinkling of 

 black hairs in front of the ocelli and next to the eye margins, clothed 



TRANS. AM. ENT. SOC. , XXXIX. 



