DYTISCIDiE. 
249 
Dytiscid^. 
Schirer (Verb, z.-b, Wien, xxii. p. 75) records the survival of water-beetles 
in an aquarium left dry from August to October. 
Hutchinson, Eut. M. ix. p. 12, records species occurring near York. 
Amphizoides. 
Amphizoaj'osephi, p. 119, lecontii, p. 121, Vancouver's Island : A. Matthews, 
Cist. Ent. pt. v., spp. nn. 
Haliplides. 
Haliplm impressus {JlavicolUs, auctt.) being the only species known to 
Fabricius, represented the genus with him, and neither it nor ruficollis, Deg., 
var. laminatus, SchalL, can be considered as being more than synonyms ; H. 
amoenus, 01., should stand for obliquus, F. Hydi'oportis I'eticulatus) : G. R. 
Crotch, C. H. X. p. 205. 
Haliplus anclalusicus, sp. n., Wehncke, B. E. Z. xvi. p. 135, Andalusia. 
Hydroporides. 
Hydroporm ohsoletus, Aube, with quadrifurcate antennae: R. Lawson, 
Ent. M. M. viii. p. 288. 
Hydroporm ferrugineus, Lucas, is gravely stated to clash with Hyphydrus 
ferruyineiis, Linn., and is named injlatus, by Reiche (Cat. Col. Alg. p. 24), 
who forgets Hydropoi'^is ferrugineus, Stephens (victor, Aube), and the fact of 
Ferris having long named the Algerian species hypliydroides (cf. C. 11. x. 
p. 230) ; H. confusus, Luc, nec Klug, is named hicasi [an alteration made in 
De Marseul's Cat. 1867] : Reiche, I. c. (v. Harold, x. p. 230, objects to this, as 
confusus, Klu.o,=geminus, F.). 21. gramdaris, 'L.,=mimmus, Scop. ; JI. reti- 
culatus and obliquus (not a Haliplus), Y., = versicolor, SchalL; H. unistri- 
atus, Goeze, Schr., =J•J«ry^^?l^s, Miill. : G. R. Crotch, C. H. x. p. 204. H, avun- 
culus, Y?i\nn..,=disti7iguendus, Desbr. ; H. nigricollis, Fsdvm.,=nigricollis, 
Desbr. : Desbrochers, Bull. Soc. Ent. Fr. (5) ii. p. xxiii. 
Hydroporus niyrita and discretus : T. J. Bold, Tr. North. Durli. iv. p. 375, 
repeats his opinion that these are sexes of one species [but does not adduce 
any instance of their having been taken in copula, or mention any examina- 
tion of the genitalia']. 
Hydroporus suhalpinus, p. 365, incrassatus, p. 366, Thomson, Opusc. Ent. 
(iv.), Sweden ; H. gracilis, Wehncke, B. E. Z. xvi. p. 136, Malaga : spp. nn. 
Colymbetides, 
Noterus setnipunctatus, ¥., = capricorms, Hbst. ; Ilyhius i^notatus, Steph., 
should stand for the preoccupied ater, Deg. ; I. fenestratus, F,, confuses 
fenestratus and fuliginosus, and comma, Miill., should stand for the first, 
f(Btidu8, Miill., for the latter of these ; Agahus higuttatus, 01., ? = nitidus, 
F,, var. ; A. didymus, 0\., = biocellatus, Miill. : G. R. Crotch, C. H. x. p. 205. 
Agabus sexualis, Reiche, = Gaurodytes alpestris, Heer ; A solieri, Aube, ex. typ. 
(from Schaum), = ^arsa^?/s,Zett, [Aub^'s name is four years prior] : Thomson, 
