44 
RECORDS OF THE AUSTRALIAN MUSEUM. 
Genus Belostoma, Latr. 
Belostoma indica , Stoll. Pun. 34, pi. 7, fig. 4; St. Farq. et Serv. 
Enc. x. 272 ; Sew. Hist. Hem. 429 ; Mayr. Verh. z. b. 
G. Wien. xxi. 426. 
Generally distributed. 
Genus Diplonychus, DeLap . 
Diplonychus eques , L. - Duf. A. S. E. F. 4me Ser. ii. 394 ; Mayr. 
Yerh. z. b. G. Wien. xxi. 437. 
Hob. Australia. 
Diplonychus rusticus , Stoll. Pun. 36, pi. 7, fig. 6 ; Sulz. Alg. 
Gesch. Ins. 92, pi. 10, fig. 2; Fabr. Syst. Rhyn. 106; L. 
Duf. A. S. E. F. 399 ; Mayr. Yerh. z. b. G. Wien, xxi. 438. 
Generally distributed. 
Genus Naucoris, Geoffr. 
Occurs commonly ; several species known, but none described. 
Family HYDROMETRIDiE. 
Genus Hydrometra, Fabr. 
Ilydrometra cursitans, Fabr. Syst. Ent. 729; Sp. Ins. ii. 377 ; 
Mant. Ins. ii. 308 ; Syst. Rhyn. 259 ; Stal. Hem. Fabr. i. 
131. 
Ilab. Australia. 
Ilydrometra australis , sp. n. 
Ilab . Sydney, N.S.W. 
Two or three undescribed species are known. 
Genus Halobates, Esch. 
Halobates w idler storffi, Frauenf. Yehr. z. b. G. Wien, xvii. 458, 
pi. 12, figs. 1, 2, 6, 8, 10 ; Ohal. Rep. 
Hob. Coast of Australia ; Port Jackson ; Western Australia. 
Halobates wlciteleggei , Sk. Records Aust. Museum, Yol. i. No. 8, 
p. 175, pi. xxvii. 
Hab. Port J ackson. 
Obs. — George IT. Carpenter, Asst. Naturalist to the Science 
and Art Museum, Dublin, has recently characterised a species, 
II. regalis (Proc. Roy. Soc. Dublin, xv. p. 144, pi. xiii. figs. 1 - 8), 
from examples obtained by Prof. A. C. Haddon off the shores of 
the island of Mabuiag, Torres Strait, which closely resembles 
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