On Aquatic Carnivorous Coleoptera or DytiscidcB. 495 



lateribus subrectis, auterius aug'ustato, basi rotuudato, angulis posterioribus obtusis ; 

 ■elytris subopacis, coi'iaceis, punctis obsoletis. Long. 11t, lat. 5f m.m. 



Tbis is another very distinct species of which I have seen but a single individual, 

 a female. The upper surface including the head and thorax is densely coriaceous. 

 The dai-k colour of the legs and antenna?, and the absence of pale spots on the vertex 

 are also important characters. 



Found by Dr. Milliugen either iu Syria or Mesopotamia. 722. 



665. Agabus abnormicoUis, Ballion, Bull. Mosc. XLIII, p. 329. — Oblongo-ovalis, 

 iiiger, nitidus, sublajvigatus, elytris pone medium guttula testacea, antennis rufis, 

 pedibus piceis ; prothorace elytris evidenter angustiore, lateribus subrectis, angulis 

 posterioribus obtusis. Long. 9^, lat. 5 m.m. 



. This species has the elytra considerably broader than they are in Agabus 

 ■cephalotes. I have only the male before me, the basal joints of the front and 

 middle tarsi, are slightly incrassate and furnished beneatli with glandular hairs, the 

 claws are quite simple. 



Turkestan. 768. 



Q)C)G. Agabus maderensis, Woll., M.C. — Oblongo-ovalis, subtilissime reticulato- 

 ■punctatus, piceus, supra fusco-brunneus, anteauis pedibusque rufis ; prothoracis 

 lateribus subrectis, angulis posterioribus rectis ; elytris seriebus minus regularibus 

 punctorum numerosorura. Long. 8, lat. 4 m.m. 



This species alUed to Dytiscus guttatus (No. 670) is smaller, and is readily 

 distinguished by the much more numerous punctures on the elytra. The male is 

 more shining than the female, and the reticulation of the elytra is excessively 

 indistinct in it. The basal joints of the front and middle tarsi are but little 

 incrassate, and the anterior claw of the front ones is nearly simple, being slightly- 

 thickened, and with its lower edge a little sinuate. 



Madeira. 723. 



Gu7. Agabus {(Jaurodi/tes) intersectus, Crotch, Tr. An]. Ent. Soc. IV, p. 419. — 

 Oblongo-ovalis, anterius angustulus, niger, supra aenescens, nitidus, antennis rubs, 

 pedibus piceis ; prothorace basi elytris angustioi'o, lateribus leviter obliquis, 

 lenissime curvatis, angulis posterioribus rectis ; elytris densissime sat fortiter 

 icticulatis. Long. 8, lat. 4 m.m. 



I have seen only one female of this species ; Crotch says the male has the anterior, 

 <;law of the front tarsi dentate. 



North America, (Nevada). 736. 



