NORTHUMBERLAND AND DURHAM. 95 



medonia canaUculata, and occasionally puts on its threatening 

 movements. 



172. BoLiTOCHARA, Mannerkeim. 



1. B. LUNULATA, PayTc. 



Erichson, Gen. et Spec Staph., 58.—Steph. Manual, No. 



2780. — Aleocliara lunulata, Gf/ll. Ins. Suec, ii., 386 — 



Steph. Illust, Mand., v., 124. 



Under bark of decaying trees, and upon Polyporus versicolor. 



" Twizell." — P. J, Selhy, Esq. Ravensworth woods, and Gibside. — 



J. H. February — November. 



2. B. OBLIQUA, Erich. 



Erichson, Gen. et Spec. Staph., 59. — Steph. Manual, No. 

 2781. 

 Under bark of decayed trees, not unfrequent. " Twizell." — 

 P. J. Selhy, Esq. Gibside, Bavensworth, Gosfortb. February- 

 November. 



It feeds upon Rhizomorphi and Polyporus versicolor. As well 

 as the preceding species, it erects itself in defiance, in the manner 

 of Myrmedonia canaUculata. 



173. Falagria, Leach. 



1. F. SULCATA, Payh. 



Erichson, Gen. et Spec. Staph., 4:9.— Steph. Manual, No. 

 2740. — Aleochara sulcata, Gyll. Ins. Suec, ii., 378. — 

 Falagria sulcatula, Steph. Illust, Mand., v., 103. 

 Not common. On boards round hot beds, at Long Benton. — 

 T. J. B. Bavensworth and Marsden.— J". H. March— May. 



2. F. THORACICA, Kirhy. 



Steph. Illust, Mand., v., \^^.—Gurt Brit Ent, pi. 462.— 

 Erichson, Gen. et Spec. Staph., 52. 

 " Castle Eden dean."— i?ev. G. T. Rudd. 



3. F. OBSCURA, Grav. 



Steph. Illust, Mand., v., 104. — Erichson, Gen. et Spec. 

 Staph., 54. — Aleochara obscura, Gyll. Ins. Suec, ii., 379. 



