19H).] NATURAL SCIENCES OF PHILADELPHIA. 373 



Hab. — Georgetown, Tasmania, Nov. 15 and 29, l'.»l l (F. M. 

 Littler.) 



Halictus macrops sp o. 



cf . Length 5 nun. or a little over; black, robust, looking like a 

 female, the head very large and broad, the antennae i which are entirely 



dark) not very long; hair of head and thorax long, dull white, slightly 

 creamy on thorax above; on abdomen the hair is thin and rather 

 long, rather abundant on apical segments, but not forming bands 

 or patches; apical plate of abdomen very broad, piceous. Mandibles 

 dark red apically; lower margin of clypeus without yellow; hair of 

 face abundant, but not concealing shining surface of clypeus; front 

 dull; mesothorax polished, with fine scattered punctures; scutellum 

 dullish; area of metathorax narrowly crescentic, roughened, with 

 minute short plicae; legs black, with white hair; tegula- rufo-fuscous, 

 darkened in front; wings hyaline, stigma and nervures dark reddish, 

 outer r. n. and t. c. evanescent; first r. n. meeting second t. c; 

 second s. m. very narrow, third large, about twice the size of second; 

 abdomen shining, with very minute punctures, hind margins of 

 segments more or less pallid. Microscopical characters: clypeus 

 distinctly but sparsely punctured, the punctures emitting long- 

 plumose hairs; front densely punctured, in the middle also striate, 

 the ridges between the punctures emphasized; mesothorax distinctly 

 but not at all densely punctured, the surface of the disc not reticulate 

 or lineolate; punctures of scutellum smaller than those of mesothorax; 

 first abdominal segment and basal half of second well though minutely 

 punctured, apical half of second transversely lineolate. 



Hab. — Launceston, Tasmania. (F. M. Littler.) This may be 

 compared with H. niveifrons Ckll., from which it is easily known by 

 the broad face. 



Halictus lanariellus sp. n. 



9. Length about 8 mm., the abdomen large; black, with dull 

 white hair; bases of abdominal segments 2 to 4 with broad bands of 

 white tomentum, having a faint creamy tint, especially at sides of 2, 

 where it is very dense, the band on 4 so broad as to occupy more than 

 half the segment; legs black, the tarsi ferruginous at apex. Head 

 broad; mandibles obscurely reddish apically; clypeus and supra- 

 clypeal area shining and sparsely punctured; front extremely densely 

 punctured, not striate; antennae dark, flagellum faintly reddish 

 below at apex; mesothorax shining, strongly and rather closely punc- 

 tured; scutellum shining, depressed and punctured in middle, but 



