Mr Hardy on the Entomology of the Cheviot Hills. 253 



Hedgehope, more frequent ; sources of Common burn ; east 

 end of Cheviot. 

 Hydroportis atriceps, Crotch. (= melanocephalus, Gyll). This 

 species, in colour black as night, is the predominant kind in 

 the high exposed sphagnous pools on the neck of Hedgehope ; 

 east end and summit of Cheviot ; sources of Common burn, 

 rare. These are some of the coldest and most cheerless spots 

 that I ever visited. 



,, tristis. Mossy pools. Cold Martin Moss ; sources 



of the Common burn ; pond near Lilburn ; east end of Cheviot. 

 ,, tjmbrostjs. Cold Martin Moss, several. 



,, obscurus. Cold Martin Moss, a few ; neck of 



Hedgehope, three. 



„ angustatus. Pond in Earle field near Pin "Well. 



One example. 



„ incognitos, Sharp. One in Cold Martin Moss. 



Coloured like Gyllenhalii, but smaller and more finely punctured. 

 Eare. 



„ VTTTULA. Cold Martin Moss ; pond near Earle. 



„ palustris. Common in the lower pools. 



„ lineattjs. Pond near Lilburn. 



Colymbetes BiSTRiATUs. Sphagnous pools. Cold Martin Moss ; 

 neck of Hedgehope ; sources of Common burn. 



„ exolettjs. Pond near Lilburn ; the typical form, 



without the black margin to the hinder part of the thorax. 

 Iltbius fuligi»osus. Cold Martin Moss, &c. 



,, ater. Pool near Lilburn ; Cold Martin Moss. 

 ,, gtjttiger. Sources of Common burn. One. 

 , , angtjstior. Sources of Common burn ; Cold Martin Moss. 

 Agabtjs Solieri. Pools at the east end of Cheviot. Very like a 

 bipushdatus, but oval and not obovate ; male glossy black ; 

 female brownish. New. 



,, chalconottjs. Cold Martin Moss ; Hedgehope ; sources 

 of Common burn ; east end of Cheviot. 



„ congener. Cold Martin Moss, pretty frequent; frequent 

 on neck of Hedgehope ; east end of Cheviot ; rare at sources 

 of Common burn. 

 „ arctictjs. Cold Martin Moss and neck of Hedgehope, 

 scarce ; more frequent at sources of Common burn. 

 „ Sturmii, Pond near Earle. 

 „ uliginostjs. Pond near Lilburn. 



ii nitidus, Fab. (= fontinalis, Steph.) One male in the 

 pond near Lilburn, which is partly a running water. 



,, guttatiis. Eunning streams on Hedgehope, and in the 

 Bizzle. 

 „ nebulostjs. Sources of Commonburn; Humbletonpond. 



