INDEX. 



ABBREVIATES, Ag. -J-j 

 abdominalis, Gyr. 46 

 aciculatus, D. 4 

 Acilius, 10 

 aculeata, Cel. 30 

 acuminatus, Hydr. 40 

 adpressus, Ag. 24 

 adspersus, Dyt. 17 

 ajgyptiacus, Dyt. 49 

 seneus, Cyb. 7 

 Dyt. 1! 

 ,, Gyret. 47 

 Gyr. 44, 45 

 aequatus, Hal. 1 

 aeratus, Gyr. 44 

 sereus, Din. 49 

 seruginosus, Ag. 21 

 affinis, Ag. 24 

 ,, Gyr. 44 

 Hal. 2 

 ,, Hydrop. 33 

 Hygr. 31 

 africanus. Cop. 25 

 Cyb. 5 

 Din. 49 

 Hal. 3 

 Agabus,20 

 agilis, Agab. 20 



Col. 17 

 airumlus. Hydro] >. 

 alpestris, Ag. 25 

 alpinus, Hydrop. 35 

 alternans, Hydrop. 3C> 

 amsenus, Dyt. 1 

 ambiguus, Ag. 21 



Hydr. 41 



americanus, Ag. 23 

 Din. 49 

 Din. 48 

 Dyt. 10 

 Hal. 3 



Hydr. 38 



Laccopli. 29 



analis, Gyr. 45 



Hydr. 39 

 angularis, Hydrop. 33 

 angustata, Cel. 30 

 angustatus, Dyt. 8 

 Gyr. 44 

 Hydr. 41 



angusticollis, Col. 18 

 angustus, Ag. 24 



angustior, Ilyb. 19 



Anisomera, 27 



Anodocheilus, 32 



anthracinus, Gyr. 45 



anxius, Dyt. 8 

 ,, Dyt. 9 



aquilus, Ag. 24 



arcticus, Ag. 20 



arcuatus, Dyt. 42 



areolatus, Hydrop. 35 



assimilis, Ag. 20 

 Col. 16 

 Din. 49 

 ,, Hydrop. 35 



ater, Hydr. 39 

 Ilyb. 19 



aterrimus, Ag. 21 

 G. 48 



atratus, Cyb. 6 



atricolor, Col. 18 



Aubei, Hydr. 38 



aulicus, Hydr. 38 



australicus, Cop. 26 



australis, Col. 16 

 ,, Din. 49 



austriacus, Hyd, 14 



BADIUS, Hal. 1. 

 barbarus, Hydrop. 34 

 Barnstoni, Col, 15 

 Bassii, Col. 10 

 Batrachomatus, 27 

 bengalensis, Cyb. 4 



D.6 

 bicarinatus, Hydrop. 32 



Mat. 27 

 bicolor, Ag. 22 

 Cop. 26 

 Gyr. 44 



Laccoph. 21* 

 bicruciatus, Hydr. 42 

 bidens, Gyret. 47 

 bidentatus, Hydrop. 35 

 bifarius. Ag. 21 

 biguttatus, Ag . 24 



Laccoph. 29 

 biguttulus, Ilyb. 19 

 bihamatus, Hyd. 12 

 bilineatus, Hyd. 14 



Hydr. 42 

 bimaculatus. Cyb. 

 bimarginatus, Dyt. 13 



