5050 Insects. 



fortunate as to meet with it myself. The recorded localities are " near 

 Hull," "Norwich," "banks of Teviot," "Norfolk." 



4. E. aeneus, Mull. The most abundant of the genus. 



5. E. cupreus, Mull. This and the following species are readily 

 separated from their congeners by the absence of any thoracic longi- 

 tudinal lines. From Mr. Dawson's cabinet I find that this species is 

 to be found in profusion in the Isle of Wight. I have taken it very 

 sparingly near Llangollen, and also in the Snowdonian district; also 

 taken by the Rev. W. Hey in Yorkshire, and by Dr. Power in North- 

 umberland; and, according to Stephens, "near London." 



6. E. nitens, Mull. Smaller and more brassy than the last. I 

 know but little of the habits or localities of this species. It appears 

 to be local or rare. " Near London," Mr. Stephens. 



7. E. parallelipedus, Mull. Readily distinguished from all conge- 

 ners by its oblong form. Not common, though generally distributed. 

 Exeter; Manchester; Scotland. 



Genus Sperch,eus. 



1. S. emarginatus, Schal. Few cabinets possess this species, con- 

 sidered one of the rarest of our British insects. I imagine that, like 

 many other "rarities," it may be found in profusion, and that our 

 ignorance respecting it proceeds, not from its being difficult to dis- 

 cover, but from our not searching for it in its proper habitat or season. 

 Windsor ; near York ; Kensington Gardens ; Yaxley Fen ; have been 

 given as localities. " Quelquefois assez commun sous la vase desse- 

 chee des fosses, ou dans les eaux stagnantes." — Fairm. 



Genus Helephorus. 



1. H. grandis, Illig. Common everywhere. At once distinguish- 

 able from its size. 



2. H. nubilus, Fab. Not abundant. Sandy places, Copenhagen 

 Fields ; Holme Fen. 



3. H. rugosus, Oliv. Not common. Taken occasionally in abun- 

 dance in spring and autumn floods. 



These two species may be at once distinguished from their conge- 

 ners by the carinated interstices of their elytra. 



4. H. aquaticus, Linn. A most abundant species. 



5. H. griseus, Herbst. Also abundant. 



To point out fully the distinction between these species (4 and 5), 

 and to unravel their tangled synonymy, requires more space than the 





