DYTISCIDJJ. 
Ins. 121 
parallelipipedus , Congo, p. 159, platynotus , S. Africa, p. 160, 
decemsulcatuSf W. Africa, depauperatus , Transvaal, p. 161, pulicarius , 
p. 162, crassus, p. 165, nodieri , p. 166, assimilis , p. 166, W. Africa, 
ilybioides , Madagascar, p. 167, flavidus, pallidus , W. Africa, p. 168, 
owas, p. 169, Madagascar, nigrostriatus , sordidipennis , p. 170, W. 
Africa, ruficapillus , Madagascar, bifasciatus , p. 171, variegatuSy p. 172, 
W. Africa, bottegoi , Abyssinia, propinguus , p. 174, vigintisulcatus , 
p. 175, supplementary , trilobatus , p. 176, anthr acinus , mocquerysij 
p. 177, W. Africa, Regimbart, Mem. Soc. ent. Belgique, iv : n. spp. 
Gybister pinguis, E. Africa, Regimbart, p. 192, Ann. Mus. Genova, xxxv ; 
(7. marginellus , p. 212, rufiventris, crassiusculusy p. 214, mocquerysij 
p. 217, W. Africa, pinguis, E. Africa, p. 220 , pruinosus, Congo, p.224, 
Regimbart, Mem. Soc. ent. Belgique, iv : n. spp. 
Derovatellus obscurus , mocquerysij p. 12, ruficolliSj p. 13, fasciatuSj p. 14, 
W. Africa, Regimbart, Mem. Soc. ent. Belgique, iv, n. spp. 
Dcsmopachria variolosa, Sumatra or Mexico, p. 321, pi. 8, fig. 3, grouvcllei , 
Mexico, p. 322, fcrrugata, attenuata , Brazil, p. 323, RAgimbart, Ann. 
Soc. ent. France, 1895, n. spp. 
Dytiscus pisanusy n. var. hunstleri ; Peytourkau, p. xlii, Act. Soc. 
Bordeaux, 1894. 
D. herbetiy Europe (part of Dytiscus marginalis'), Peytoureau, p. xxxiii, 
C.R. Soc. Bordeaux, 1894, n. sp. 
Graphoderes oberthuri , Madagascar, Regimbart, p. 206, Mem. Soc. ent. 
Belgique, iv, n. sp. 
Ilerophydrus gigas , S. Africa, quadrilineatus, Abyssinia, p. 38, capensisy 
p. 40, ccelamboideSy p. 42, S. Africa, vittatus, Mauritius, p. 43, con- 
fususy obsoletuSy p. 44, biseriatusy p. 45, hyphoporoides , p. 46, assimilisy 
p. 47, Madagascar, Regimbart, Mem. Soc. ent. Belgique, iv, n. spp. 
Hydaticus mocquerysij Gaboon, latior , S. Africa, p. 185, quadriguttatus f 
lativittis, p. 186, pceciluSj p. 187, severini, p. 188, speciosus, p. 189, 
testudinarius, laceratus, p. 190, W. Africa, plagiatus , p. 194, incon- 
spicuus, p. 195, Madagascar, nebulosuSy arcuatus y p. 198, tschoffeniy 
p. 199, staudingeri, p. 200, W. Africa, nigrotceniatuSy p. 202, Mada- 
gascar, humerali8y p. 203, Sierra Leone, intcrmcdiuSy p. 204, Mada- 
gascar, vitticollis, Senegal, p. 205, Regimbart, Mem. Soc. ent. 
Belgique, iv, n. spp. 
Uydatonychus , not distinct from Hydrovatus ; Regimbart, p. 110, Mem. 
Soc. ent. Belgique, iv. 
Ilydrocanthus ferruginicollisy Giuba, Regimbart, p. 189, Ann. Mus. 
Genova, xxxv ; H.ferruginicolliSy Somaliland, p. 128, mocquerysiy 
Congo, p. 129, constricts, Madagascar, p. 130, Regimbart, Mem. 
Soc. ent. Belgique, iv : n. spp. 
Hydroporus semirufusy p. 317, pi. 8, fig. 1, sanmarlci, p. 318, fig. 2, larvm 
described ; Regimbart, Ann. Soc. ent. France, 1895. 
H. carinipennis, Congo, p. 15, nodieriy Senegal, p. 1 6,jurjurensis t Algeria, 
p. 29, canthydroide8, p. 30, luridipcnnis , bicinctus , p. 31, S. Africa, 
Regimbart, Mem. Soc. ent. Belgique, iv, n. spp. 
