. The Canadian entomologist. Insects; Entomology. 214 THE CANADIAN ENTOMOLOGIST India, 1897), is that of a male Thrinchostoma, allowing for en- graver's errors. - But, unfortunately, Bingham's accompanj ing description, which is of the female, is meager. In the colouring of the clypeus and legs and the structure of the base of the propodeum it agrees with T. sladeni, but in the colouring of the wing ner- vures with T. assamensis. » [Assamensis appears to be near to T. macrognathum (Friese) from Java, which (cf) has "Clypeus gelbbraun jederseits an Rande mit schwarzer ; Head and
. The Canadian entomologist. Insects; Entomology. 214 THE CANADIAN ENTOMOLOGIST India, 1897), is that of a male Thrinchostoma, allowing for en- graver's errors. - But, unfortunately, Bingham's accompanj ing description, which is of the female, is meager. In the colouring of the clypeus and legs and the structure of the base of the propodeum it agrees with T. sladeni, but in the colouring of the wing ner- vures with T. assamensis. » [Assamensis appears to be near to T. macrognathum (Friese) from Java, which (cf) has "Clypeus gelbbraun jederseits an Rande mit schwarzer ; Head and thorax yellow-haired. "Beine gelblich, gelbbraun ; Long 9-10 mm.; 9 not known. Friese redescribes your Khasia Hills insect as sladeni, using same 9 and cf forms as I had. (Tijdschrift voor Entomologie, LVII (1914), p. 27.) Friese makes a subgenus (of Halictus) Rostratilapis for macrognathum and sladeni.—T. D. A. C] Thrinchostoma assamensis, n. sp. cT.—Length 13 mm. (head extended), expanse 21 mm. Head and thorax black, clothed with short pale fulvous hair; inner margins of the eyes con- cave; clypeus greatly extended, more so than in T. sladeni, clear yellow ; supra-clypeal area piceous; malar space piceous, its extremity yellow; mandibles yellow, their tips piceous; labrum yellow; clypeus very shining, coarsely and remotely punctured; supra-clypeal space more closely and finely punctured; antenna? piceous; apex of scape paler; upper part of front finely and shallowly punctured, almost impunctate in the region of the ocelli; propodeum rounded. Fig. 25.—(See p. 215.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Entomological Society of Canada (1863-1871); Entomological Society of Canada (1951- ); Entomological Society of Ontario. Ottawa [etc. ] Entomological Society of Canada [et
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