AMERICAN HYMENOPTERA. 237 



Xylocopa viri<ligastra Lep. 

 Quito, 9000 feet; Chillo, 9000 feet; Nanegal, 3-4000 feet. 



Boinbus fimebris Sm. 



Described from Quito. Taken by Mr. Whymper at Machachi, 

 9-10,000 feet; Hac. Guachala, 9217 feet; Pichincha, 11,500 feet; 

 Chillo, 9000 feet ; S. Lucia, 8000 feet ; Hac. S. Rosario, 10,300 feet. 



The males and workers are colored like the females, black, with 

 silvery white hair on the back of the thorax and on the apex of the 

 abdomen. 



Bombus robustus Sm. 



One example from Pichincha, 11,500 feet. 



Agapostemon peruviaiuis sp. nov. 



Head and thorax brilliant emerald-green and thickly covered with long whit- 

 ish-fulvous hair; the abdomen black; the halves of all segments yellow; the 

 labrum, mandibles and the greater part of the legs yellow; the antennae, black, 

 brownish beneath ; wings hyaline, the stigma testaceous, the nervures black. % . 



Scape of antennae yellow, black above ; the flagellum black, fulvous beneath, 

 except on the apical two joints. Head emerald green, except the apex of the 

 clypeus and the labrum, which are yellow, it is closely but not very closely punc- 

 tured. The clypeus is large, broadly rounded above and with a bundle of stiff 

 brownish bristles on the top in the centre ; beneath the sides are broadly roundly 

 produced and clearly separated from the labrum which has its apex broadly 

 rounded ; its sides are rounded and it is clearly separated above and covered with 

 short white pubescence. Mandibles thickly covered with golden pubescence, 

 yellow, their apex piceous. Thorax brilliant emerald-green, closely and distinctly 

 punctured. The mesonotum is more closely punctured than the rest; it bears a 

 central and a lateral golden impressed line; the scutellum is more distinctly and 

 less closely punctured ; the area on the median segment is large, rather strongly 

 reticulated; the apical slope is clearly limited and bears some irregular, curved 

 stria;. Pleurae closely and strongly punctured, the punctures running into stria- 

 tions; the hinder part of the niesopleurae is irregularly striated, and at the base 

 is bounded by a curved furrow; the lower part of the metapleurae bears some 

 irregular striae, which are longest on the apex. The four front legs have the 

 coxae and trochanters black ; the latter streaked with yellow in the middle; the 

 hinder coxae are emerald-green and closely striated above; the rest brownish; 

 the hind femora black, with abroad yellow line on the apical half above; the 

 hinder tibiae are dark brown, yellow beneath. The yellow band on the 1st ab- 

 dominal segment is on the apex, on the others on the basal half, the apical two 

 bands are narrower than the others; the ventral segments have similar, but nar- 

 rower bands. 



Hab.— Callao, Peru (I. I. Walker, R. N.). 



Megacillisa f'ulvo-pilosa sp. nov. 

 Black, thickly covered with longish fulvous pubescence ; the lower inner 

 orbits, the clypeus and the labrum yellow ; the abdomen with a blue-violaceous 



TEANS. AM. ENT. SOC, XXIX. AUGUST, 1903. 



