596 On Aquatic Carnivorous Coleoptera or Dytiscidce. 



I. 55.— Genus AGLYMBUS. 



Coxal lines quite obliterated ; upper surface bearing a sculpture of short lines. 



The seven species of this genus are with two exceptions South American, and are 

 extremely rare in collections. The two Abyssinian species will j^robably prove 

 another genus. 



897. Copelatus rufipes, Brulle, Agahus rufipes, 31.0. — Ovalis, elongatus, sat 

 angustus, nitidus, subtus piceo-rufus, supra niger, capite, prothoracis lateribus, 

 elytris fascia basali, macula laterali signaturaque apicali, antennis pedibusque 

 testaceis ; prothorace strigis hand subtilibus numerosis impressis, elytris in parte 

 basali strigis similibus, in parte apicali fere Itevigatis. Long. 7{, lat. 2§ m.m. 



The male has the second and third joints of the front and middle tarsi a good deal 

 thickened. The female I have not seen. A variety occurs (in the same localities 

 as the type form) having no trace of the basal fascia on the elytra. 



South America, ( Brazil). 7 1 0. 



898. Agabus lepriauri, Aube, M.C. — Ovalis, minus nitidus, piceus, supra 

 nigricante, capite elytrisque apice dilutioribus, prothoracis lateribus antennis 

 pedibusque ferrugineis ; thorace elytrisque lineolis brevibus, profundis et 

 numerosis impressis, illis versus elytrorum apicem obliquis. Long. 61, lat. vix 

 si m.m. 



The male differs from the female only by a slight incrassation of the basal joints 

 of the front and middle tarsi. The species is readily recognized by its peculiar 

 sculpture ; the .specimens before me show some variation in size and form, and 

 also in the number of the scratches on the thorax and elytra. 



South America, (Cayenne). 711. 



899. Aglymbus sculpturatus, n. sp. — Ovalis, fere opacus, piceus, supra nigricante, 

 capite elytrisque limbo dilutioribus, prothoracis lateribus antennis pedibusque 

 ferrugineis ; thorace elytrisque lineolis profundis densis, impressis, illis versus 

 apicem obliquis. Long. G, lat. 3i m.m. 



This species is narrower in front and therefore more oval in form than in Agabus 

 leprieuri (No. 898) and has the sculpture of the upper surface denser. The single 

 individual I have seen is a male, and has the front and middle tarsi very little 

 incrassate. 



South Americ&, (Paia, Bragance , de Mathau). 712. 



