Hymenoph'ra. 201 



white hair : the vertex, face, clypeus and the upper part of tliorax 

 with fuscous, the pleura3 more densely with longer white hair : 

 the dorsum of abdomen spar-sely with pale hair : the pollen brush 

 white. Wings hyaline, with a distinct fuscous-violaceous tinge ; 

 the nervures and stigma black. Female. 



Length (S, breadth 3 mm. 



Grahamstown. Misses Daly and Sole. Februar3\ 



Mandibles four-dentate ; the fourth tooth the smallest ; the 

 second shorter than the first or third. Head and thorax closely 

 stronglj" punctured, the clypeus more closely than the rest. Apex 

 of clypeus broadly rounded, almost transverse. Apex of clypeus 

 transverse with the sides rounded ; the apical slope smooth, im- 

 punctate, hardly projecting. TegulaB black, smooth and shining. 



Smith (Cat. Hym. Brit. Mus. Apidoe, 210) descril)es an entirely 

 black species (A. imniaculala) from the Cape, but its description, 

 such as it is, does not fit the species I have described. 



Anthidium crassidens, sp. nov. 



Black ; the front tarsi and their tibiae anteriorly rufous, the 

 apical joints of the middle tarsi of a darkei- rufons colour ; on the 

 outer side of the first abdominal segment is a large transverse 

 yellow mai'k, dilated on the inner side at the base, on the sides 

 of the second a much smaller line about three times broader than 

 long ; on the third, fourth, and fifth, more towards the middle, 

 are larger and broader marks, that on the fourth being larger than 

 the others. Wings fuscous violaceous, more or less' hyaline, the 

 stigma and nervures black. The hair on the face, clypeus and 

 pleurae white ; on the front, vertex and top of thorax fuscous. 

 Tegulse black ; scopa white, tinged with rufous. Female. 



Length 11 mm. ; breadth 4 mm. 



Katberg. December. Miss Sole. 



Mandibles with four stout, broadly rounded teeth : the apical 

 longer and sharper pointed than the basal three ; thc^ ])ase clearly 

 separated from the fourth tooth, its anterior part with an oblicjue 

 slope ; except in the middle at the base they are closely, but not 

 strongly punctured ; behind the second tooth is a rufous mark. 

 Head anil thorax closely rugoscly punctured. Apex of scutellum 



