800 On Aquatic Carnivorous Coleoptera or Dytiscide. 
lateribus vix rotundatis, tenuiter marginatis ; cum elytris angulum haud formantibus, his ad medium 
thorace latioribus, lutescentibus, antennis pedibusque rufis. Long. -15, San Diego.” 
This is not alluded to by Crotch either in his check-list, or the ‘‘ Revision of the N. American 
Dytiscide.”—D. 8. 
1392. Hydroporus lateralis, Boh., Ins. Caff. I, p. 255. Caffraria. 
“ Ovatus, convexus, obsolete, crebre punctulatus, niger, nitidus; antennis, palpis pedibusque rufo- 
testaceis ; prothorace obsolete ferrugineo-marginato ; elytris margine, fasciis duabus latis, transversis, cum 
margine coherentibus, introrsum abbreviatis apiceque flavo-testaceis. Long. 24,lat.13m.m.” ‘ H. picto 
parum longior sed latior.” 
[ This diagnosis is followed by a long description. | 
I can form no ideaas to where the species should be placed.—D. 8. 
1393. Hydroporus latipes, Brullé, Voy. d’orb. Col., p. 50. Aubé, Spec., p. 445. South America 
(Corrientes). 
“ Hlongato-ovalis, postice valde acuminata, convexa, supra undique valde punctata; capite et thorace 
rufo-ferrugineis ; elytris rufo-piceis. Long. 6, larg. 22 m.m.” 
| Aubé, l.c., supplements the above diagnosis with an ample description, and he refers the species to the genus 
Celina. | 
1394. Hydroporus longulus, Mulst., Ann. Soc. Linn. Lyons. VII, p. 305. (op. Ent. XII, p. 52.). France. 
‘*Oblongus, leviter convexus, subnitidus, parce subtilissime griseo pubescens, vertice, antennis pedibus- 
que rufo-testaceis. Capite parce subtiliter, pronoto dorso parce, lateribus densius, elytris sparsim fortius, 
punctatis ; his preeterea punctis majoribus seriatis, bi-impressis. Long. 0:0030., larg. 0:0014.” 
“ Mont Dore, montagnes du Lyonnais, du Dauphiné et de la Provence. Dans les eaux vives.” 
“‘ Cette espéce est bien voisine de l’Hydr. nigrita, F.; mais elle est un peu plus grande, plus allongée, 
plus brillante. Ses élytres sont moins courtes, moins arrondies sur les cétés, presque paralléles, surtout 
chez les individus de la Provence.” 
[The above diagnosis is followed by an extremely long description. | 
The species is probably very closely allied to H. nevadensis, and H. celatus, (Nos. 632, and 633).—D. S. 
1395. Hydroporus lucasi, Reiche, (confusus Lucas. Exp. Alg. Ent., p. 96. pl. 11. f. 4). Algeria. 
“Tong. 5 m.m., larg. 2m.m. 3. 4H. ovalis, convexus; capite nigro, subtilissime punctulato, piloso ; 
elytris fulvo-ferrugineis, pilosis in medio macula atra irregulariter ornatis; corpore atro; pedibus 
ferrugineis.” 
“Cet Hydropore ressemble beaucoup a |’H. lituratus, avec lequel il ne pourra étre confondu a cause de 
sa taille, qui est beaucoup plus grande, et des taches que presentent les élytres, qui sont differem- 
ment disposées.” 
Algiers, Constantine. 
The figure, /. c., is very inferior, but shows the elytra to be largely brown, with black marking about 
the suture.—D. 8. 
1396. Hydroporus magensis, Clk., Ann. Nat. Hist., 1862, p. 183. Mexico. 
“‘ Sat robustus, sub-pubescens ; prothorace ad basin transverse depresso, nigro, antice flavo; elytris 
punctato-striatis. Long. corp. 14 lin. lat. } lin.” 
“ Ovate, broad, sufficiently robust, very finely and sparingly pubescent: head transverse, impunctate, 
glabrous ; below the inner margin of the eyes on either side is a minute fovea, and parallel to the line of 
the base is a minute longitudinal depression ; in colour black ; thorax somewhat narrow, transverse; on 
