22 CATALOGUE OF 



X H. LINEATOCOLLIS Marsh. Gyll. 



Steph. Aube, Erich. Common, 



bistriolatus Duft. Sturm. 

 trimaculatus Drap. 



LINEATUS Aube. Loch Leven ; Swinton; Berwick- 



confinis Steph. shire. 



H. OBLIQUUS Fab. Panz. Steph. Whitadder ; Berwickshire. 

 coDfluens Fab. 

 marmoreus Oliv. 



FAMILY GYRINID^. 



GYRINUS Geoff. 



X G. MINUTUS Fab. Steph. Near Hawick ; Water-of-Leith, and 



bicolor Oliv. (not Payk.) Braid ponds, near Edinburgh ; 



Berwickshire; near Paisley. /&&*> 



X G. NATATOR Lin. Gyll. Steph. In ponds. Common everywhere. 



Aube. 

 var. substriatus Steph. 



)(G. MARINUS Gyll. Ahr. Erich. Duddingston Loch, and Lochend 

 Aube. Steph. Clanal near GJasofow ft.rid Paisley ; 



natator Fab. (not Lin.) Linlithgow Loch. 



seneus Steph. var. major 

 (not Aube.) 



seratus Steph. var. minor. 



dorsalis Gyll. var. 



ORECHTOCHILUS Esch. 



VILLOSUS Fab. Gyll. Steph. In the Jed, near Jedburgh ; Earl- 

 Aube. ston; Loch Lomond; Kelvin ; 



abundant in Eden, near Nen- 

 thorn. 



FAMILY HYDROPHILID^. 



HELOPHORUS Fab. 

 X H. NUBILUS Fab. Steph. Not rare, 



cinereus Marsh. 



