284 E. T. CRESSON. 



:Xyloeo|>a imirpurea, n. sp. 



9- — Blaek, with a strons; purple reflection, changing to blue and some- 

 times green in certain lights, especially on thorax and legs, the abdomen more 

 strongly purple, the pubescence short, thin and black ; face and clypeus 

 closely punctured, the vertex sparsely so, especially at summit of eyes where 

 there is an oblique indentation, frontal tubercle almost obsolete; cheeks with 

 dense black pubescence; disk of thorax impunctured; wings smoky, dark at 

 apex; pubescence of legs black; abdomen naked above, sparsely punctured, 

 more closely so laterally, apex with black pubescence, having a tuft of white 

 pubescence on each side. Length .75 inch. 



Two specimens. (Heiligbrodt.) 



Ceiitris lanosa, n. sp. 



%. — Black; head, thorax and basal segment of abdomen clothed with a 

 dense, rather long, ochraceous pubescence, whitish on face and cheeks; cly- 

 peus labrum and scape beneath yellow or yellowish-white, clypeus shining 

 feebly punctured ; tegulae pale testaceous; wings hyaline; legs robust, black, 

 with black pubescence, the anterior pair and sometimes the four posterior 

 tibiae on outside with pale pubescence; abdomen shining, minutely punctured, 

 with a slight bluish reflection, the segments except first, clothed with a short 

 black pubescence. Length .50 idch. 



Three specimens. (Belfrage.) 



Apathus laboriosus. 



Bombus laboriosus, Fabr. Syst. Piez., p. 352. 



One 9 specimen. (Boll.) 



Apatlius Tariabilis, n. sp. 



9. — ^Black, shining, clothed with short black pubescence; a triangular 

 patch on vertex, mesothorax except posterior disk, scutellum except base and 

 patch in front of tegulse, clothed with dense citron-yellow pubescence; a 

 slight admixture of yellowish pubescence before ocelli; wings dark fuscous, 

 darker at base and along costa; legs and abdomen clothed with black pubes- 

 cence, more dense at base of abdomen which is smooth and polished, being 

 very minutely punctured, apex incurved and obtusely punctured. Length .75 

 inch. 



% . — The pubescence of head and thorax longer and brighter in color, that 

 on thorax above interrupted by a band of black pubescence between the wings, 

 dilated centrally, the yellow pubescence sometimes extending down on each 

 side of pleura; legs sometimes tinged with ferruginous; abdomen sometimes 

 entirely black except a few yellowish hairs on lateral margins of third and 

 fourth segments, sometimes the third and fourth segments except disk and 

 sides of fifth segment are yellow, sometimes the first and sides of fourth seg- 

 ments are more or less yellow and sometimes the first and third entirely, the 

 second except sides, and the sides of fourth and fifth segments are yellow. 

 Length .70 inch. 



Five specimens. (Belfrage.) The 9 diflfers from laboriosus 9 , 

 by the black pleura and black band between the wings. The % 



