42 Ins. 
COLEOPTERA. 
Dineutes leucopoda , Montr., = australis , Fabr. ; Fauvel, Rev. d’Ent. 
ii. p. 348. 
New species : — 
Enhydrus albertisi, R^gimbart, Ann. Mus. Genov, xviii. p. 70, Fly 
River, New Guinea. 
Aulonogyrus wehnckii, Angola, p. 125, elegantissimus (Chevr., MS.), 
figs. 70, 75 & 77, Madagascar, p. 126, subparallelus , fig. 79, Gape, p. 128, 
convexiusculus , Delagoa Bay, p. 129, abyssinicus , Abyssinia, p. 132, sharpi , 
Caffraria, p. 136, virescens , Abyssinia, p. 138, bedeli , Gold Coast, Angola, 
zanzibaricus , Zanzibar, p. 139, algoensis, Algoa Bay, and goudoti (Dupont, 
MS., = corinthius , Chevr.), fig. 81, Madagascar, p. 140, R6gimbart, Ann. 
Soc. Ent. Fr. (6) iii. pi. iv. 
Gyrinus fairmairii , Mesopotamia, Bagdad, tenuistriatus (Chevr., MS.), 
Philippines, p. 144, chalcopleurus , Cape, p. 145, rufiventris , Cape, Mada- 
gascar, p. 146, cubensis i Cuba, p. 151, oceanicus , Philippines, p. 154, 
cegyptiacus, Egypt, p. 155, wankowiczi , Minsk, p. 157, canadensis , Canada, 
p. 159, simoni , Australia, p. 163, ceylonicus , Ceylon, p. 164, gestroi, Japan, 
p. 165, caledonicus (Fauvel, MS.), New Caledonia, orientalis , China, 
p. 167, luctuosus, Mesopotamia, Arabia, p. 168, corpulentus, North America, 
p. 178, rugifer , Guadeloupe, p. 179, colombicus, Colombia, p. 180, bolivari t 
fig. 91, p. 181, cequatorius , Ecuador, p. 182, plicatus (Chevr., MS., = 
obtusus , Sharp, wee Say), Mexico, opalinus (Chevr., MS.), Brazil, p. 184, 
sericeo-limbatus (Deyr., MS.), Celebes, Philippines, Java, p. 185, and 
violaceus, fig. 94, Monte Yideo, p. 187, id. 1. e. pi. vi. 
Dineutes pectoralis, id. Ann. Mus. Genov, xviii. p. 70, Andai, New Guinea. 
Orectochilus gestroi , angulatus , p. 72, pubescens , p. 73, pusillus , p. 74, 
id. 1. c., Sarawak ; O. angustior, Kolbe, B. E. Z. xxvii. p. 18, Chinchoxo. 
Hydro philidas. 
Sharp, D. Revision of the species included in the genus Tropisternus 
(fam. Hydrophiliclce). Tr. E. Soc. 1883, pp. 91-117. 
33 species of Tropisternus and 2 of an allied genus are admitted, several 
others being noticed as doubtful. General remarks on structure are 
prefixed, and Tropisternus is divided into several sections and groups. 
The following synonymy occurs : — T. scutellaris , Cast. (= Hydrophilus 
lepidus } Brulle), chalybeus , Cast (= nitudus , Cast., and Hydrophilus 
chalybeatus , Curt.), subltevis , Lee. (= II. quadristriatus, Horn), dorsalis , 
Brull6 (= H. limbalis } Lee.). All the species are fully described. 
Hydrophilus piceus and atterimus. Notes on structure ; Doebner & 
Dohrn, S. E. Z. xliv. pp. 390 & 391. 
Hydrobius, Leach. Table of Dutch species ; Everts, Tijdschr. Ent. 
xxvi. pp. cxliv.-cxlvi. II. fuscipes and roltenbergi differentiated ; 
Wiepken, Abh. Ver. Brem. viii p. 101. 
Berosus. Table of French species; Rey, Rev. d’Ent. ii. pp. 90 & 91. 
B. externespinosus, Fairm., probably = australiev , Muls. ; Fauvel, Rev. 
d’Ent. ii. p. 356. 
