CARABIDJi], DYTISCID^. 
245 
B. (eruginosum, Gebl., = fellinanni, Man. ; B. willeri aud cordicolle, Duv., 
= hvunnicorne, Dej. ; B. lafertii, Duv., is quite distinct from siculum, 
Dej. ; De la Brulerie, in Monogr. des Ditomides, L'Ab ix. preface, 
pp. iii. & iv. 
Bembidium hetum, BruUe. On its geographical distribution, and 
occurrence in Spain : Perez Areas, Act. Soc. Esp. ii. p. 22. 
Bembidium mannerheimi, Sahib., is not synonymous with obtusum, but 
a good species, for which differential characters are given. The expo- 
nents of B. grapii in the Sahlbergian collection (= schuppeli, Dej.) 
were taken in 1830, three years after pubhcation of Sahlberg's species. 
J. Sahlberg, S. E. Z. xxxiv. pp. 63 & 64. 
Bembidium riparium, 01., and biguttatum, F. : differences fully dis- 
cussed by Kraatz. B. E. Z. xvii. p. 215. Cf. also pp. 441 & 442, for 
notes on communication by Seidlitz on this subject. 
Tachys exaratiis, p. 296, jjaZ/escews, sericans, p. 297, ketijicus, fuscicauda, 
p. 29S, perlutus, p. 299, Japan, gradatus, pcecilopterus, vixstriatus, p. 331, 
China, spp. nn., H. W. Bates, 1. c. 
Tachyta mia-oscojjica, sp. n., id. I. c. p. 299, Japan. 
Bembidium stenoderum, p. 300, B. {Pergphus) consummatum, p. 301, 
hiogoense, lissonotum, p. 302, Japan, cliloreum, collutum, p. 332, China, 
spp. nn., id. I. c. 
Dttiscid^. 
G. R. Crotch, Tr. Am. Ent. Soc. iv. pp. 383-424, gives a Revision of the 
Dytiscidae of the United States." Several American forms are insepara- 
ble from European, and the number of species common to both continents 
will probably be increased. Dimorphous females occur, as in Europe ; in 
DgtiscuSj nearly all $ are permanently smooth [as in Russia ; cf. Zool. 
Rec. vi. p. 230], whilst in Agabus and Acilius smooth and rough females 
are equally common. The Amphizoidce and Pseudomorphidce lead the 
author to suppose that this family is not separable from the Carabidce : 
a tribe Eretini is proposed (p. 386) for the reception of Eunectes, Erichs., 
nec Wagl., for which Eretes, Lap., is adopted ; this heads the Dgtiscides, 
coming between Cnemidotus in the Haliplides and Celina in the Hydro- 
porini : Hydrocanthus^ Suphis^ and Colpius are included in the Noterini ; a 
new tribe, Agabinini, is proposed (p. 397), for the reception of a new 
genus allied to Noterus ; and the Cohjmbetides are merged in the Dytis- 
cides. 
H. v. Kiesenwetter, C. H. xi. pp. 79-86, in some remarks upon the 
nomenclature of the Dytiscida', criticizes G. R. Crotch's alterations, &c., 
(C. H. x.), in the names of Ilaliplus obliquus, Hydroporus gmnularis, 
reticulatus, and unistriatus, Noterus semipunctatus, Ilybius ater andfenes- 
tratus, Agabus didymus, Cybister costalis and Hydaticus stagnalis. 
Haliplides. 
Ilaliplus nitens^ Lee, = cribrarius, Lsc, var. ; H. immaculicollis, 
Harr., = rufcollis, Deg. ; Cnemidotus simplex, Lee, = callosus, Lee, $ : 
G. R. Crotch, Tr. Am. Ent. Soc. iv. pp. 384 & 385. 
Haliplus japonicus, D. Sharp, Tr. E. Soc. 1873, p. 55, Japan ; H. lewisi, 
