On Aquatic Carnivorous Coleoptera or Dytiscidce, 735 



which I have possessed for a good many years, without label or indication whence I 

 obtained it, but I believe it was from M. Doue's collection. I should think Upper 

 Egypt is undoubtedly its country, and it may occur also in Senegal. 



Egypt, (Senegal?). 1079. 



1149. Cybister crassipes, n. sp. — Minor, ovalis, robustus, latiusculus, parum 

 elongatus, supra olivaceus, capite anterius prothoraceque ad latera late testaceis, 

 elytris late testaceo-cinctis ; corpore subtus testaceo, prosterno pectoreque in medio 

 obscurioribus, tarsis intermediis, tibiis tarsisque posterioribus piceo-rufis; elytrorum 

 epipleuris versus apicem latis et planatis ; trochanteribus posterioribus apice libero, 

 spinoso-acuto. Long. 22, lat. 12 m.m. 



I have not seen the male of this species : the female possesses a rather dense but 

 fine sexual sculpture on the wing-cases and thorax ; this sculpture consists of 

 moderately fine scratches some of which are quite short, others elongate, at the base 

 this sculpture extends from the scutellum to near the lateral margin, and it extends 

 also two-thirds of the distance towards the apex, but becomes more distant both 

 from the suture and lateral margin as it proceeds backwards ; the thorax is nearly 

 covered with irreafular scratches but there are none at all on the head. 



The single individual 1 have seen indicates that this species is closely allied to 

 Cybister reichei, but is of broad instead of narrow form . 



Arabia, (Dr. C. Millingen). 1080. 



1150. Cybister tibialis, n. sp. — Ovalis, sat latus, anterius evidenter angustatus, 

 supra niger, capite anterius prothoraceque ad latera testaceis, elytris margine externo 

 (cum epipleuris) testaceo-cinctis ; subtus piceus, pectore ad latera late testaceo ; pedi- 

 bus quatuor anterioribus testaceis, tibiis intermediis piceo- testaceis, tarsis intermediis 

 pedibusque posterioribus piceis ; elytrorum epipleuris versus apicem sat latis et 

 planatis. Long. 30, lat. 16 m.m. 



The male has the anterior tarsi large attaining fully 3 m.m. in the transverse direc- 

 tion ; on the intermediate tarsi there is a patch of quite short sexual pubescence on 

 each of the three basal joints, these patches are not very broad, that on the third 

 joint being indeed quite narrow, the claws are rather elongate and little curved, the 

 anterior one much thickened. The female has a largely developed sexual sculpture 

 on the wing-case, consisting of elongate scratches or striae, which however scarcely 

 anastomose with one another, they extend about three-fourths of the way to the apex, 

 at the base they extend quite across the wing-case, and for nearly their whole length 

 are but little separated from the lateral margin ; on the thorax there are very fine 

 short scratches on the lateral parts and extending along the base : the epipleurse are 

 oblique, though not dilated in front of the middle. 



This species attains the size of the smallest individuals of Dy tiscus roeselii (N o. 1 1 6 9 ) 



