Manchester Memoirs, Vol. xli. (1897), No. 4. 83 



them a whitish appearance. The two recurrent nervures 

 are completely interstitial; the pedicle of the second 

 recurrent nervure is longer than the lower cellule. 

 Abdomen smooth, shining, impunctate; the apex sparsely 

 covered with white hairs. 



CEMONUS. 



Neither this genus (or subgenus according to some 

 authors) nor its type Pemphredon has been recorded 

 hitherto from the Oriental Region. 



Cemonus fus'cipennis, sp. nov. (PL 4, f. 16). 



Niger, nitidus, sparse albo-hirsutus ; alis fumatis, bast 

 fere hyalinis. 2. Long. 8 — 9 mm. 



Hab. Mussouri (Rothney). 



Head very shining, the front closely, the vertex much 

 more sparsely covered with shallow punctures ; sparsely 

 covered with long fuscous hairs ; the cheeks and clypeus 

 at the sides much more thickly covered with long white 

 hairs ; the clypeus with a few punctures in the middle ; 

 mandibles entirely black. Antennae entirely black; almost 

 bare. Thorax shining; the pronotum coarsely punctured; 

 the mesonotum shining, smooth ; in front with a few 

 widely separated punctures ; and an indistinct, shallow, 

 longitudinal furrow ; and there is a more distinct lateral 

 one. The smooth area in the base of the median 

 segment is stoutly crenulated ; and there is a distinct 

 longish longitudinal furrow in the centre ; and the sides 

 (but not at their extreme edges) have some shallow 

 punctures. The propleurae at the base are strongly 

 aciculated ; the centre smooth, almost impunctate, the 

 mesopleurae strongly punctured ; the metapleurae obliquely 

 striolated, almost reticulated. Legs black ; the femora 

 and tibiae sparsely covered with long white hair ; the 



