44 RECORDS OF THE AUSTRALIAN MUSEUM. 



Genus Belostoma, Lair. 



Belostoma indicn, Stoll. Pun. 34, pi. 7, fig. 4; St. Farq. et Serv. 

 Enc. X. 272 ; Serv. Hist. Hem. 429 ; Mayr, Verh. z. b. 

 G. Wien. xxi. 426. 

 Generally distributed. 



Genus Diplonychus, DeLap. 



DipJ.onycJms eques, L. - Duf. A. S. E. F. 4me Ser. ii. 394 ; Mayr. 

 Verh. z. b. G. Wien, xxi. 437. 



Hah. Australia. 



Diplonychus rusticus, Stoll. Pun. 36, pi. 7, fig. 6 ; Sulz. Alg. 

 Gesch. Tns. 92, pi. 10, fig. 2 ; Fabr. Syst. Rhyn. 106 ; L. 

 Duf. A. S. E. F. 399 ; Mayr. Verh. z. b. G. Wien, xxi. 438. 



Generally distributed. 



Genus Naucoris, Geoffr. 

 Occurs commonly ; several species known, but none described. 



Family Hydrometrid.e. 



Genus Hydrometra, Fabr. 



Hydrometra cursitans, Fabr. Syst. Ent. 729 ; Sp. Ins. ii. 377 ; 

 Mant. Ins. ii. 308 ; Sysfe. llhyn. 259 ; Stal. Hem. Fabr. i. 

 131. 

 Hah. Australia. 



Hydrometra australis, sp. n. 

 Hah. Sydney, N.S.W. 

 Two or tJiree undescribed species are known. 



Genus Halobates, Esch. 



Halohaf.es vjiillerstorffl, Frauenf. Vehr. z. b. G. Wien, xvii. 458, 

 pi. 12, figs. 1, 2" 6, 8, 10 ; Glial. Rep. 

 Hah. Coast of Australia ; Port Jackson ; Western Australia. 



Haluhates whiteleygei, Sk. Records Aust. Museum, Vol. i. No. 8, 

 p. 175, pi. xxvii. 



H<d). Port Jackson. 



Obs. — George H. Carpenter, Asst. Naturalist to the Science 

 and Art Museum, Dublin, has recently characterised a species, 

 //. regalis (Proc. Roy. Soc. Dublin, xv. p. 144, pi. xiii. figs. 1 - 8), 

 from examples obtained by Prof. A. C. Haddon ott" the shores of 

 the island of Mabuiag, Torres Strait, which closely resembles 



