430 On Aquatic Carnicorous Coleoptcra or Dytisckhe. 



prothorace basi utrinque nigricante, elytris sutura signaturisque in medio nigris ; 

 thorace basi lateribusque rotundatis, angulis posterioribus valdc rotundatis ; elytris 

 apicem versus denticulatis ; corpore dense subtilissime punctulato. Long. 5, lat, 

 2 1 m.m. 



Mas, tarsis intermediis vix dilatatis, anterioribus sat dilatatis unguiculo posteriore 

 valde elongate, elytris apicem versus denticulo minore. 



JeJJah. 2.5G. 



479. Deronectes islamiticus, n. sp. — Ovalis, minus latus, subtilissime pubescens, 

 subtus niger, antennis pedibus capite thoraceque rufis, elytris pallide testaceis ; 

 prothorace basi nigricante, elytris sutura signaturisque antrorsum extensis nigris ; 

 prothorace basi rotundato, angulis posterioribus obtusis S, vel rotundatis ^ ; corpore 

 dense subtilissime punctulato. Long. 5, lat. 2f m.m. 



In the male, the front tarsi are moderately dilated, their posterior claw extremely 

 elongated ; the thorax is at the base slightly broader than the elytra, its hind angles 

 obtuse not rounded ; the extremity of the elytra is entire. In the female the sides 

 of the thorax are more rounded and contracted behind so that the hind angles are 

 quite rounded ; the elytra are furnished near the apex with a distinct tooth. 



Readily distinguished from Deronectes arabicus, by its narrower form and the 

 greater extension of the black marks of the elytra. 



Kurdistan. 257. 



4S0. Deronectes suavis, n. sp. — Ovalis, subtilissime pubescens, nigricans, capite 

 testaceo, ad verticem et ad oculos utrinque infuscato, prothorace testaceo sed latius 

 infuscato ; elytris fascia basali signaturisque j^arvis testaceis, apicem versus denti- 

 culatis ; prothoracis angulis posterioribus per-obtusis ; corpore dense subtilissime 

 punctate, sed abdomine magis fortiter punctato ; antennis pedibusque testaceis, 

 illis apicem versus his tarsis infuscatis. Long. 4|, lat. 21 m.m. 



The male is not quite so dull as the female and has the front and middle tarsi 

 broader, with the hinder claw of the front ones a good deal elongate. 



Greece, (Mount Parnassus}. 258. 



481. Hydroporus variegatus, Aubd, M.C. — (<?) Ovalis, subtilissime pubescens, 

 nigricans, capite testaceo, utrinque infuscato ; prothorace in medio fusco, lateribus 

 clytrisque fascia basali signaturisque parvis testaceis ; elytris apicem versus fortiter 

 denticulatis ; prothoracis angulis posterioribus obtusis ; corpore dense subtilissime 

 punctato, sed abdomine paulo magis fortiter punctato ; antennis pedibusque tes- 

 t:iceis, extrorsum obscurioribus. Long. 5, lat. 2j m.m. 



