vnr O en era of J cht\c\\mon'K\a\ 111 



(lefinod ; llio central space is bordered by keol.s ; from tlie 

 side of the smooth basal space a stout curved keel runs to join 

 the apex of the prolongation of the smooth part. Tiie 

 spiracular area is separated from the pleuraj by a distinct 

 keel. Proplcura3 closely punctured, the apex in the middle 

 stoutly striated ; the lower part jirojccts, is there smooth, but 

 above the smooth ]>rojoction it is roundly hollowed and stoutly 

 perpendicularly striolated. The tubercles form an elongate 1, 

 narrow, sharp projection under the tegula?, and are lon'>-er 

 than them, extending from the base to the apex of the j)leura3 ; 

 the s])ace immediately underneath them stoutly, slightly 

 obliquely striated, all the strijo distinctly separated; the rest 

 of the pleural with shallow j)unctures, excej)t on the middle 

 behind ; the lower part behind immediately over the hind 

 coxje roughly irregularly striolated ; the metapleurje closely 

 punctured, less strongly behind, separated from the sternum 

 by a stout keel, the part immediately over the keel beino- 

 crenulated. Legs coloured like the thorax, except that the 

 apical two joints of the hinder tarsi are black. Petiole 

 stoutly striated down the middle, the sides, especially at the 

 apex, strongly punctured ; the other segments except the last 

 strongly, closely, longitudinally striolated. Gastrocoeli trans- 

 verse, deep, smooth, except in front of the middle, where 

 they are striolated. 



DlM^THA, gen. nov. 



Antennfe short, flattened and com])ressed beyond the middle. 

 Labrum distinctly projecting. Scutellum flat, sloping down- 

 wards from the middle towards the apex, its sides stoutly 

 keeled on the basal half. Median segment with one laro-e 

 central, one lateral, and the spiracular arege clearly defined. 

 Wings large, with an apical cloud ; the areolet oblique, four- 

 sided ; the transverse cubital nervures united on the top. 

 Abdomen with seven segments and witii a ventral fold on the 

 second, third, and fourth, the dorsal segments closely punc- 

 tured ; the sides of the segments not angled. The hinder 

 femora reach to the apex of the third segment. 



This genus belongs to the Ilemijoppinai, but does not iit 

 well into either of the sections into which Kriechbaumer 

 divides the group. In the male the antenna? are much lou'T'er 

 and serrate. Comparing IHmnitlia with Gaihetus^ it may be 

 readily dii^tinguished by not having the abdominal segments 

 longitudinally striated, by the petiole being longer, by the 

 postpetiole being narrower and shorter than the narrowed 

 basal portion, the abdominal segments do not project so mucli 

 at the apices, the scutellum is nut so flat, and the hinder tarsi 

 are much longer compared with the tibia;. 



