756 On Aquatic Carnivorous Coleoptera or DijtiscidoB. 



1204. Agabus terminalis, Melsh., Proc. Acad. Phil. II, p. 27. North America. 



" Black, opaque, densely and very finely striate ; labrum, palpi and antennae testaceous. Nearly 5 1. 

 long, 2§ 1. wide. Inhabits Pennsylvania." 



This is not mentioned by Crotch in his " Revision of the North American Dytiscidae." — D. S. 



1205. Agabus truncatipennis, Sol., Gay, hist. Chil. IV, p. 278, pi. 6, f. 1. ChilL 



" A. oblongus, eUipticus ; capite nigro ; prothorace ochraceo, medio macula transversa, trapeziformi, 

 fusca ; elytris apice oblique tnincatis, subacuminatis, ocbraceis, nigro irregulariter reticulatis maculisq<ie 

 quatuor oblongis, nigris, lateribus utrinque notatis, ore antennisque luteis ; pedibus obscuiis. Long, 

 sub 4 lin. |, latit. 2 lin." 



" Esta especie se parece mucho al Colymbetes nigriceps, pero es menos angosta y differe ademas por 

 Ids caracteres genericos. La encontranios en Santiago y en los bajas cordilleras de Coquimbo." 



The figure indicates^ a species of Lancetes, and I expect it will prove to be C. nigriceps, or C. pr^- 

 morsus. — D. S. 



1206. Agabus ventuiii, Bert., Bull. Ent. It. II, p. 242. Italy. 



" Ovatus, subtiliter reticulato-strigosus, niger, elytris mai-gine extremo fuscis, opacis, antennis 

 pedibusque ferrugineis. Long. 7 mUl., lat. 4 mill." 



" Assai somigliante neUa forma all' Agabus areticus, Paj'k., itc, . . . ." 



1207. Anisomera bistriata, Bi-ulle, Hist. Nat. V, p. 205, pi. 8, f. 3, Aube', Spec. p. 396. Chili 



" Oblongo-elongata, depressa, supra flavicans, infi-a nifescens ; thorace postice angustiore ; elytris 

 elongatis, ad apicem dilatatis, creberrime nigro-in-oratis. Long. 6^, larg. 3 m.m." Aube, I.e. 

 [This is followed by a description.'\ 



This insect is, I believe, still only known by the above described mutilated female individual ; its 

 genus is quite doubtful to me. — D. S. 



1208. Anisomera recta, Lee, Ann. Mag. Nat. Hist., 4th ser. IV, p. 375. North America. 



" Elongato-ovalis, seneo-nigra, subtiliter dense reticulata ; prothorace longitudine plus triplo latiore, 

 postice subangustato, lateribus antice late rotundatis, versus basin paulo obUquis vix subsinuatis, angulis 

 posticis rectis, basi tr\mcato ; elytris thorace vix latioribus, ntrinque seriebus tribus punctorum aolitis, 

 externa minus distincta. Long. 10 m.m." 



According to an individual recently transmitted to me by the describer, this species difiers from No. 

 662, by the more evidently reticulate surface, and the less degree of sinuation of the sides of the 

 prothorax. It should be placed in the genus Agabus after A. cordatus (No. 662) — D. S. 



1209. Celina grossula, Lee, New spec. Col. I, 1863, p. 22. North America. 



" Piceo-rufa, nitida, elytris obscuris haud dense punctatis, punctisque majoribus triseriatim digestis, 

 serie interna evidentiore, apice conjunctim breviter acuminatis. Long. -22. Louisiana." 



" This species is very much larger than C. angustata, but agi-ees with it in form, colour and sculpture ; 

 the upper surface is, however, a little more convex, and the sides of the thorax slightly less rounded." 



A specimen of this species recently transmitted to me by its describer seems extremely close to C. 

 aculeata but is a little larger and paler in colour. — D. S. 



