109 Insecta. 
Systematic— C oLBOPTBRA — H ydrophilidab. 
Hehpellis cossyphoides sp. n. La 
Plata p. 468 fig., Bruch T.c. 
Helophorua hanghaasi sp. n. Syr 
Daria p. 11, Kniz Ent. Bl. 15. 
Hydraena ; larva, d’Orchymont Ann. 
Soc. ent. Belgique 59. — H. imperatrix 
p. 1.3, calabra p. 14, spp. n. Calabria, 
Kniz Ent. Bl. 15. 
Hydrochus minimus sp. n. Florida 
p. 317, Blatohley Bull., Amer. Mus. 
41. — H, corruscans p. 462 fig., richteri 
p. 463 fig., spp. n. La Plata, Bruch 
Rev. Mus. La Plata 19 1916. 
Ilydrophilus ; the egg case, Vande- 
VELDE Bull. Soc. ent. Belgique 1, 
p. 9-12 ; H. piceus, cocoon construction. 
Vandevelde pp 206-208 Ann. Soc. 
ent. Belgique 58 1914. — H. similis 
sp. n. India p. 162, d’Orohymonx Ann. 
Soc. ent. France 88. — H. vitalisi sp. n. 
Annani.p, 79, d’Orohymont Ann. Soo. 
cut. Belgique 59. — H, longus sp. n. 
La Plata p. 448 fig., Bruch Rov. Mus. 
La Plata 19 1916.—//. sartus Seni., 
Umipes = {profanifuga Sem.), Kni^ 
p. 16 Ent. Bl. 15. 
HygrolrophuSy is a subg. of Berosus, 
Orchymont p. 229 Bull. Soc. ent. 
France 1919. 
Neohydrobius, is a synonym of 
llelochares, Orchymont p. 227 T.c. 
Neokydrophilus, a valid gen., d’Or- 
chymont p. 161 Ann. Soc. ent. France 
88 . 
Noteropagus gen. n. p. 132 Megas- 
teniini, politus Memtawei p. 134, 
obscurus Timor p. 135, spp. n., d’Or- 
chymont T.c. 
Ochthebins ; synonymy of palaearotic, 
Knt?. p. 13 Ent. Bl. 15. — 0. martini 
sp. n. California p. 212, fossatus = 
{tuberculatns and foveicollis) p. 213, 
Fall Canad. Ent. 51. — 0, franeJei sp. n. 
La Plata p. 464 fig., Bruch Rev. Mus. 
La Plata 19 1916. 
TJmicrogiton gen. n. p. 121 near 
Omicrus, insularis sp. n. Engano p. 123 
d’ Orchymont Ann. Soc. ent. France 
88 . 
Oocyclus latus sp. n. Ceylon p. 142, 
d’Orchymont T.c. 
Oosternum sculptum sp. n. La Plata 
p. 469 fig., Bruch Rev. Mus. La Plata 
19 1916. 
Orchymontia gen. n. Ilydraeninae,. 
spinipennis sp. n. New Zealand, Broun 
Ann Soc. ent. Belgique 69 p. 108. 
Paracymus rufocinctus p. 456 fig.,. 
gmniformis p. 457 fig.. La Plata spp. n., 
Bruch Rev. Mus. La Plata 19 ^1915. 
Paromicrus annandulei India p. 130, 
affmis Japan p. 127, scotti p. 128, caro- 
linae p. 129, Engano, spp. n., d’Orchy- 
mont Ann. Soc. ent. France 88. 
Pelosoma meridionale sp. n. La Plata 
p. 468 fig., Bruch Rev. Mus. La Plata^ 
19 1916. 
• Pelthydrus gen. n. p. 150 next 
Helochares, sculpturalus Yunnan, minu- 
tus p. 163, brouni p. 164, Sumatra, 
spp. n., d’Orchymont Ann. Soo. ent. 
.France 88. 
Phaenonotum argentinense p. 465 fig., 
spegazzinii, regimbarti, p. 466, puncti- 
colle p. 467, spp, n. La Plata, Bruch 
Rov. Mus. La Idata 19 1916. 
Philhydrus obsoletiis p. 463 fig., 
circumcinctus p. 454 fig., scutellaris^ 
p. 455 fig., breviusculm p. 456 fig., 
spp. n. La Plata, Bruch T.c. 
Psalitrus gen. n. p. 123 near Paro- 
micrus, vandenbosscheae sp. n. Sumatra 
p. 124, d’Orchymont Ann. Soc. ent. 
France 88. 
Pseudohydrobius flavus sp. n. N.S.W. 
p. 167, Lea Tr. R. Soo. Austr. 43 1919. 
Rygmodini trib. n. for various New 
Zealand forms, d’Orchymont p. 105 
Ann. Soc. ent. France 88. 
Scoliopsis gen. n. p. 139 Hydrobiini, 
spinosa sp. n. Ceylon p. 141, d’Orohy- 
mont T.c. 
Spercheus gibbus p. 238, belli, bino- 
dulus, p. 239, spp. n., India, Champion 
Ent. Mo. Mag. 55. — 8 , fimbriicollis sp. n. 
La Plata p. 460 fig., Bruch Rev. Mus. 
La Plata 19 19l6. 
Sphaeridium, characters of british. 
Sharp pp. 124-126 Ent. mo. Mag. 55 ; 
characters of european, figs., synonymy, 
Dbville Bull. Soc. ent. France 1919. — 
8. severini sp. n. India p. 110 thomsoni 
n.n. for pictum Th. p. 118, d’Orohy- 
mont Ann. Soo. ent. France 88. 
Sternolophus and N eosiernolophus, 
taxonomy, d’Orchymont p. 156 T.c. 
Tropisternus dilatatus La Plata p. 449 
fig., obesus La Plata p. 450 fig., spp. n., 
Bruch Rev. Mus. La Plata 19 1915. 
