MR. T. J. BOLD ON COLEOPTERA. 375 



be a native of Mexico, and had no doubt come to this country 

 with some plant. 



33. Thyamis atriceps, Kuts., Ent. Ann., 1867, 96. 

 Occurs, but appears to be rare, in the Wooler district. 



(notes on rare or local species). 



Dromius nigriventris, Metabletus foveola,* Kev. 4. 



Both species are found in plenty on Wooler Haugh (the site 

 of the battle of Flodden), but with us they occur only on the sea 

 coast. Two other coast loving species, Aleochara obscurella and 

 Rliizobius litura, are found in the same locality. 



Cahsoma sycophanta, Rev. 6. 



This specimen, which was caught crawling on a load of sand 

 brought from higher up the river, was purchased at the late Mr. 

 Wingate's sale, by Mr. John Hancock, and is now in his collec- 

 tion. 



Bembidium Mannerheimii, Rev. 13. 



Rather a good series of this rare insect has been taken in the 

 Wooler district, in May, July, and October. In July it was 

 found to frequent cut grass at a considerable elevation on the 

 hills. 



Hydroporus 9-lineatus, Rev. 17. 



Not uncommon in the Wooler district, in May. 



Hy. GyUenhalli, Schiod., = Hy. piceus, Rev. 17. 

 In Cold Martin Moss, and upon the hills of the Wooler dis- 

 trict, in May and July, plentifully. 



Hy. monticola, Rev. 17. 



About a dozen specimens have occurred with the preceding. 



Hy. nigrita, Rev. 18. 



Since the publication of my Revision several specimens of this 

 species have been taken near Wooler, and again both forms are 

 present, still further confirming my opinion that discretus is only 

 the male of nigrita. Other grounds may be pointed out why 

 this should be the case : in nearly every other species of the 



* Revision of Coleoptera, Nat. Hist. Trans. N. & D. : Vol. IV. 



