270 NORTHERN ZOOLOGY. 



B. Dasvgastra.s Kirb. 



Family CHELOSTOMID^. Chelostomidans. 



CLXI. Genus CHELOSTOMA. Lat. 



(374) 1. * Chelostoma albifrons. White-fronted Chehstoma. 



C. ( albifrons J atra, pubescens, fronte sub antennis argenteo-alba ; tliorace cinereo, abdomine nigro hirsutis ; hoc segmentis niveo 



ciliatis. 

 White-fronted Chelostoma, black downy ; front below the antennae silver-white ; thorax hirsute with cinereous hairs and 



abdomen with black ; in the latter the segments are fringed with snowy ones. 



Length of the body 4A lines. 



A single specimen taken in Lat. 65°. 



DESCRIPTION. 



a 



Body black, thickly punctured. Mouth bearded with white ; mandibles carinated above, armed 

 with two strong terminal teeth ; nose square, flat, cloathed with decumbent silver pile ; antenna; 

 filiform; scape black; the other joints are rufo-piceous underneath : trunk very hirsute with white or 

 subcinereous hairs : wings a little embrowned, with black veins and base-covers : legs hairy : abdo- 

 men subcylindrical, hirsute with black hairs, incurved with the apex of the four intermediate segments 

 fringed with white hairs ; anal joint with a concavity above, obtuse ; last ventral segment forcipate, 

 rufo-piceous. 



Family MEGACHILIDiE. Megachilidam. 



CLXII. Genus MEGA CHILE. Lat. 



(375) 1. Megachile maritima. Maritime Megachile. 



Megachile maritima. Curtis Brit. Ent. v, 1218. Steph. Cat. i, 373, 5059, 6. 

 Apis maritima. Kirb. Mon. Ap. Angl. ii, 242, 43. 



Length of the body 7 lines. 



3 I include in this tribe all those solitary bees, the underside of whose abdomen in the females is covered with a pol- 

 liniferous brush. 



