452 Mr. G. Mcade-WalJo on 



gviseous pubescence. Anterior and intermediate legs normal, 

 posterior trochanters with a stout tubercle on the inner side, 

 posterior femora enormously incrassatf, shining-, rounded 

 above ; beneath there is a stroiig carina, terminating in a 

 conspicuous tubercle ; hind tibise s{;atulate, widening from 

 the base, a conspicuous tooth at apex. Wings subhjaiine. 



Length 9 mm. 



1 ^ , Patagonia ; Chubut, Valley de Lago Blanco. 



[It had been intended to publish the description of this 

 new genus and species in my fascicle on the Prosopidinse 

 ('Gen. Insectorum '), the M>S. of which is iiow in the hands 

 of M. Wytsman, o£ Tervueren. Owing to the unsettled state 

 of affairs in Belgium, the date of publication is very uncertain ; 

 so it seems better to add the descriptions to the present 

 paper.] 



TJirincosloma hryanti, sp. n. 



(J . Capite thoraceque nigris, abdomine fulvo-brunneo ; omnino 

 nitidus, plus minusve pubcscens ; clypeo medio apiceque fulvo- 

 brunneo ; alls subbyalinis, hirsutis. 



Long, (capite producto) 14 mm. 



Clypeus very much produced, snout-like, the apex trun- 

 cate, laterally rounded, shining and finely punctured ; genge / 

 of considerable development, about equal in length to the ' 

 scape, cldtlied with a dense sericeous pale jjubescence ; inner 

 orbits feebly emarginate along their upper half ; mandibles 

 simple, fulvous brown. Antennai wholl)^ black, of normal 

 proportions. Mesonotum shining, finely punctured ; scu- 

 tellum sliining, distinctly convex ; postscutellum of ordinary 

 sculpture; enclosed area of median segment more coarsely 

 scul[)tured ; surface of truncation of median segment slightly 

 concave, subglabicus, the puncluies rather scattered ; lateral 

 angUs of niidian segment forming distinct carinie. Tegula? 

 bruwnish, niiidulous. Abdomen (as usual in the genus) with 

 first seiiuient somewhat elongate, and following segments 

 rather widening towards aj)ex of segment 3, the whole 

 abdomen somewhat copiously clothed with long pale brown 

 hairs. Sternite 3 extremely short, almost entirely covered 

 by the preceding sternite, at its apex are two short rows of 

 stiff black hairs; sternite 4 dull, bilobed, the whole surface 

 covered with pruinosity. Anterior and intermediate tibias 

 and tarsi covered with golden pubescence ; posterior tibia 

 with a conspicuous corneous tooth at apex below ; posterior 

 tarsi with golden pubescence within. Calcaria pale testa- 

 ceous. Wings with the nervuies and stigma dull rufous. 



