580 071 Aquatic Carnivorouji Colcoptera or Dytiscidce. 



852. Copelatus striatulus, Aubd, M.C. — Oblongo-ovalis, sat angustus, subde- 

 pressus, sat nitidus, piceus, elytris nigricautibus, antennis pedibusque rufis; fere 

 impunctatus ; elytris striis quinque elongatis, stria marginali valde abbreviata, 

 aliaque suturali versus apicem tan turn exstante; prosterno medio alte carinato com- 

 presso. Long. 5i, lat. 2f m.m. 



A single female in my own collection agrees exactly with the type (in very bad 

 condition) of this species from Chevrolat's collection in the Brussels Museum. 



Africa, (Senegal). 690. 



853. Copelatus latipes, n. sp. — Oblongo-ovalis, latiusculus, subdepressus, sat 

 nitidus, piceus, elytris nigricautibus, antennis pedibusque rufis; subtiliter punctatus, 

 prothorace ad latera sat fortiter punctato; elytris striis quinque elongatis, stria 

 marginali valde abbreviata, aliaque suturali ad apicem tantum exstante; prosterno 

 medio mediocriter compresso-carinato. Long. 6, lat. 3i m.m. 



The male has the front and middle tarsi rather broadly dilated; the front tibiae 

 are very abruptly bent below the knee, the basal part being slender and bisinuate 

 on the inner edge, while the apical portion is broad. The female I do not know. 



Malacca. 691. 



854. Copelatus pusillus, n. sp. — Oblongo-ovalis, sat elongatus, angustulus, subde- 

 pressus, piceus, supra magis nigricans, marginibus (prsesertim elytrorum lateribus) 

 dilutioribus, antennis pedibusque rufo-testaceis; obsolete punctatus, prothorace ad 

 latera ante angulos posteriores area parva strigulosa; elytris striis subtilibus sex, 

 aliaque marginali brevissima, striis prima et externa anterius desinentibus. Long. 

 4i, lat. 2t m.m. 



The male has the front and middle tarsi somewhat broadly dilated, the front 

 tibiae are curved, the basal portion being very slender, and much emarginate below 

 the knee: the female shows no difference in sculpture from the male. 



Siam, (Bangjjok). 692. 



855. Copelatus fuscipennis, n. sp. — i^em.,Ovalis,vix angustus, subdepressus, nitidus 

 subtus rufescens, supra fuscescens, capite, prothoracis lateribus elytrorumque basi 

 rufis, harum apice, antennis pedibusque testaceis; fere Itevigatus, prothorace versus 

 latera strigulis parcissimis brevissimisque; elytris striis sex sat profundis et fere 

 integris, aliaque marginali brevissima. Long. 5, lat, 2| m.m. 



The very few scattered and distant scratches on the thorax are inconspicuous, 

 sometimes in fact nearly entirely absent, the striae on the elytra ai"e all continued 

 nearly to the base, the internal and the outer ones being only very slightly 



