.56 



INDEX. 



marginatus, Gyr. 44 

 Gyr. 46 

 „ Hydr. 40 



Porr. 48 

 margineguttatus, Ac. 11 

 marginellus, Gyr. 47 

 marginepennis, Or. 47 

 marginepunctatus, Hal. 2 

 margin etbor ax, Cyb. 7 

 marginicollis, Hydrop 34 

 marginipennis, Cop. 26 

 Maria, Dyt. 9 

 marinus, Gvr. 45 

 Marklini, Hydr. 39 

 marmoratus " Hyd. 12 

 Hydr. 42 

 Martini. Dyt. 9 

 Mathesoni,'Hyd. 11 

 Matus, 27 

 mediatus, Ac. 10 

 melanarius, Ag. 25 

 „ Gyret. 48 



H*ydr. 40 

 melanocephalus. Hal. 2 



„ Hydr. 39 



., Hydr. 40 



melas, Ag. 24 

 memnonius, Hydr. 40 

 mergus, Gyr. 44 

 meridionalis, Ilyb. 20 

 Cyb. 5 

 Hydr. 42 

 metallicus, Din. 49 

 mexicanus, Col. 17 

 „ Din. 48 

 „ Laccoph. 29 

 micans, Din. 49 

 Miersii. Hydrop. 33 

 minimus, Dyt. 42 



„ Hydr. 41 

 minutissimus, Hydrop. 33 

 minutus, Gyr. 45 

 Hydr. 41 

 ,, Lace. 29 

 mixtus, Hyd. 14 

 Modeeri, Gyr. 47 

 modestus, Hydr. 38 



„ Gyr. 45 



monaulacus, Hydrop. 33 

 monostigma, Col. 18 

 montanus, Ag. 21 

 morio, Gyret. 47 

 Hydr. 40 

 mucronatus, Hal. 1 

 multistriat'os, Cop. 26 

 murinus, Hydr. 38 

 musicus, Hydrop. 32 



Nanus, Hydrop. 33 

 natator, Gyr. 44 45, 

 nebulosus,' Ag. 23 

 Col. 23 

 neglectus, Ag. 21 



neglectus, Hydr. 43 

 Neuhoffii, Hvdrop. 34 

 niger, Hydr."38, 40 

 nigerrimus, Ag. 22 

 nigriceps, Col. 17 

 nigricollis, Ag. 23 

 nigrinus, Hydroc. 28 

 nigrita, Hydr. 40, 41 

 nigro-ceneus, Ag. 21 

 Ag.21 

 nigrofasciatus, Ac. 

 nigrolineatus, Hydr. 37 



„ Hydrop. 36 



nigrorematus, Col. 17 

 nilicola, Hal. 2 

 nitens, Gyr. 45 

 nitida, Desm. 31 

 nitidulus, Gyr. 45 

 nitidus, Ag. 21 



„ Ag. 23 



„ Col. 18 



„ Dyt. 24 



„ Hydr. 39 



„ Hydrop. 33 

 nivalis, Hydr. 43 

 notasicus, Cyb. 6 

 notaticollis. Col. 16 

 notatus, Col. 16 



„ Hydr. 41 

 Noterus, 27 

 notula, Hydroc. 28 

 novemlineatus, Hydrop. 37 



Obesus, Hypb. 30 

 obliquatus, Gyr. 43 

 obliquus, Hal. 1 

 oblitus, Hydr. 40 

 oblongus, Col. 20 



Hydr. 39 



Hydr. 40 

 „ Laccopb. 28 

 obscura, Cel. 30 

 obscuricollis, Col. 17 

 obscurus, Dyt, 28 



Hydr. 41 



Hydrop. 33 



Ilvb. 19 

 obsoletus, Hydr. 39 

 obtusatus, Ac. ? 25 

 Occident alis, Cyb. 5 

 „ Eun. 10 



octodecimmaculatus, Ag. 22 

 octopustulatus, H. ? 43 

 octostriatus, Col. 26 

 olivaceus, Ag. 21 



Gyr. 48 

 ontariensis, Dyt. 9 

 Onycbobydrus, 7 

 Ooligbuckii, Dyt. 8 

 opacus, Ag. 24' 

 ,, Gyr. 45 

 opatrinus, Hydr. 37 

 Orectocbilus, 47 



