THE AFGHAN DELIMITATION COMMISSION. 125 



21. Adesmia sodalis, sp. n. (Plate XIV. figs. 2, 3.) 



Nigra, sat nitida ; thorace trausverso, convexo, parce subtilissime jmnctulato ; elytris 

 bene convexis, singulis in medio carina parum crenulata instructis, inter suturam 

 et carinam seriebus duobus fovearum rotundatarum, inter carinam et rnargineni 

 tuberculis 4 vel 5 perparum elevatis ornatis ; tibiis posticis compressis. Long. 

 5^-6 lin., lat. 6 3, $ 1 lin. 



This species is nearly allied to A. carmata, but is relatively shorter and more convex, 

 and the impressions on the elytra are different. The head is dull, without punctures 

 posteriorly, but with the epistome rather closely punctured. The thorax has fine punc- 

 tures scattered over the surface. Each elytron has a well-marked acute costa a trifle 

 nearer to the suture than to the margin ; the sutural area gently convex. Between the 

 suture and the costa are two lines of large, shallow, somewhat round, impressions ; the 

 surface is slightly wrinked. The space between the costa and the margin is obliquely 

 declivous ; the surface very finely rugose ; in the middle there are a few small tubercles. 

 The lateral margin is furnished with a double series of small shining tubercles. The 

 under flanks are rather dull and very finely rugulose. 



[Hab. Baluchistan, working amongst dry sand, their general appearance and habits 

 very like large black Ants. — J. E. T. A.] 



Blaptin^e. 



22. Blaps omixosa, Menetr. Cat. Bais. p. 198. 



Hub. Badghis and Hari-rud valley. 

 Three examples. 



23. Blaps puuinosa, Paid. Bull. Mosc. vi. 1883, p. 53. 



Hub. Between Quetta and Khusan. 

 A single specimen. 



24 Blaps ptjnctostiuata, Sober, Studi Ent. p. 329. 



Hab. Between Quetta and Khusan. 



Several examples. The species is an Indian one. 



25. Blaps tridentata, sp. n. (Plate XIV. fig. 9.) 



Nigra, nitida, convexa ; thorace modice convexo, subtiliter crebre punctulato ; 

 elytris bene convexis, obsoletissime striatis, subtiliter punctulatis, apice parum 

 producto, tridentato. Long. 17 lin., lat. 7 lin. 



The punctuation of the head and thorax is fine and moderately close. The apex of 

 the elytra is tridentate ; the central tooth (formed by production of the suture) is a little 

 longer than the lateral ones. 



The male has a tuft of fulvous hair at the base of the second abdominal segment ; the 

 basal segment is transversely wrinkled, and there is a very prominent tubercle at the base. 



The female only differs from the male in being a little more convex in the elytra, with 

 the apex a little narrower ; the abdomen is simple. 



