. 'OYRINHMCj HYDROPS IUDJEi 
Im 5 . 123 
GYRINID2E. 
[Cf. Blackburn (t 14), Meinert (758), Miall (7G7), R£gimbart (924), 
Roberts (976).] 
Structure of the mouth of larva; Meinert (758). 
Aulonogyrus carmipennis, Madagascar, R^gimbart, p. 228, Mem. Soc. 
ent. Belgique, iv, n. sp. 
Dineutes : monograph of N. American, with figg. of sexual characters ; 
Roberts, Tr. Amer. ent. Soc. xxii, pp. 279-288, pis. v & vi. 
D. hornii , nigrior , p. 284, prodiictus , p. 285, N. Ameiica, Roberts, t. c. ; 
D. injlatu8 , Victoria, Blackburn, p. 28, Tr. R. Soc. S. Austral, xix : 
n. spp. 
Oyrinus striolatus = ( strignlosus , Reg.) ; Fauvel, p. 92, Rev. Ent. franc, 
xiv. 
G. ignitus , Madagascar, RiSgimbart, p. 230, Mem. Soc. ent. Belgique, iv, 
n. sp. 
Orcctogyrus fusciventris , E. Africa, p. 231, perroli , Madagascar, p. 232, 
longilabris, W. Africa, p. 235, Regimbart, Mem. Soc. ent. Belgique, 
iv, n. spp. 
HYDROPHILID2E. 
[ Cf. \ Blackburn (114), Miall (767), Horn (512), Saiilberg (999), 
< Wickham (1232).] 
Ilydropliilidcc. of Canada ; Wickham, pp. 181-186, Canad. Ent. xxvii. 
Berosus lapponicuz , Lapland, Saiilberg, p. 47, Mcdd. Soc. Faun. Fenn. 
xx ; 11. munitigennin , S. Australia, Blackburn, p. 30, Tr. R. Soc. 
S. Austral, xix : n. spp. 
Cercyon aquaticus = ( bifenestratus , Kust.); Fauvel, p. 92, Rev. Ent. 
franc, xiv. 
C. rnfescens, Lower California, Horn, p. 233, P. Calif. Ac. v, n. sp. 
Helochares lividus , var. erythrocephalus — (subcompressus, Rey) ; Fauvel, 
p. 92, Rev. Ent. franc, xiv. 
Helophorus asperatus ) Rey, = ( crenatus , Rey), H. ceneipennis , Tb., 
= ( aquaticus , Fairm., demouliiri, Math., planicollis, Th., arcuatus , 
obscurus , Rey, balticus , latus , Kuw.), H. gramdaris = ( discrepans , 
Rey) ; Fauvel, p. 92, Rev. Ent. franc, xiv. II. rugosus , injuring 
turnips ; Ormerod, pp. 91-93, Rep. xix. 
Hydrcena riparia == ( subdeficiens , sternalis , Rey), II. nigrita = (sitb- 
impressa , Rey, reyi, Kuw.), H. gracilis = ( monticola , Rey) ; Fauvel, 
p. 92, Rev. Ent. franc, xiv. 
Hydrocharis obtusatus , larva and pupa ; Wickham, p. 168, pi., fig. 1, Ent. 
News Philad. vi. 
II. riclcseclcerij California, Horn, p. 233, P. Calif. Ac. v, n. sp. 
Hydrochus palmerstoni , Australia, Blackburn, p. 29, Tr. R. Soc. 
S. Austral, xix, n. sp. 
Notoberosus , n. g. for N. zietzi y n. sp., S. Australia ; Blackburn, Tr. R. 
Soc. S. Austral, xix. 
