420 On Aqttalic Carnivorous Colcoptcia or Dytiscidce. 



Group 1. 



450. Deronectes longipes, n. sp. — Oblongo-ovalis, angustulus, depressus, subtus 

 nigricans, supra fuscus, opacus, dense, subtilissime breviterque pubescens, antennis 

 pedibusque rufis, illis articulis terminalibus extrorsum fuscis ; prothorace elytris 

 multo angustiore, lateribus sinuatis, basin versus angustatis, angulis posterioribus 

 rectis ; elytris obsoletissime dense punctatis, serie discoidali punctorum impressorum 

 distincta ; corpore subtus subtilissime punctato. Long. 4, lat. 2 m.m. 



The male has the front and middle tarsi very distinctly broader than in the female, 

 and the fifth to the seventh joints of the antennae are distinctly longer and thicker 

 than the others, whereas in the female this character can scarcely be observed. 



The species is remarkable amongst its allies for the narrow, depressed form, and 

 the absence of larger punctures on the elytra. 



Persia. 297. 



451. Dei'onectes planicollis, n. sp. — Oblongo-ovalis, sat angustus et depressus, 

 subtus nigricans, supra fusco-rufus, antennis pedibusque rufis, opacus, dense, sub- 

 tilissime brevissimeque pubescens, subtilissime punctatus, capitc thorace elytrisque 

 punctis majoribus adspersis, sat numerosis ; prothorace elytris multo angustiore, 

 lateribus sinuatis, basin versus leviter angustatis, angulis posterioribus rectis ; 

 elytris serie discoidali obsoleta. Long. 5, lat. 21 m.m. 



The male has the front and middle tarsi strongly dilated ; and the anterior claw 

 of the front feet is much incrassate. 



I have seen but a single individual of the species ; although closely allied to H. 

 parvicollis, Schaum, it is smaller and narrower, and has the thorax less sinuate at 

 the sides, and the anterior claw on the male foot incrassate : the thoracic side 

 margin is very fine, and there is scarcely any trace of impression along the side 

 within it. 



Asia Minor. (Coll. Wehnoke). 208. 



452. Hydroi)oras p.irvicollis, Schaum, M.C. — Oblongo-ovalis, robustul'is, parum 

 depressus, subtus nigricans, supra fusco-rufus, opacus, dense, subtilissime bi-evi.ssime- 

 (^e pubescens, antennis pedibusque rufis, illis crassiusculis ; prothorace elytris multo 

 angustiore, lateribus sinuatis, basin versus angustatis, angulis posterioribus rectis ; 

 capite fortiter punctato ; thorace basi fortiter sed subobsolete punctato ; elytris 

 subtilissime punctatis, punctisque subtilibus obsoletisque tantum ad basin distinctis 

 impressis, sulculaque discoidali sat distincta. Long. 5, lat. 22 m.m. 



The only individual I have seen is a typical specimen of Schaum's, it is no doubt 

 a male, and has the front and middle tarsi rather broad. 



