187 



about half as long. Four joints of the fore tarsi are very slightly dilated in the male. 

 The two species agree in all essential characters, though differing a good deal in figure. 

 The first is longer than Lesteva punctata, with much larger head, minute eyes, longer 

 and narrow thorax and shorter elytra. The other more resembles the ordinary form of 

 a Lesteva, but has a larger head and shorter thorax. 



Genus. — Boreaphilus. 

 Palpi subulati : mandibula elongata falcata : tibia muticse : tarsi articulis 4 primis 

 subaequalibus. 



Bor. hermhigianus. Apterus, thorace oblongo capita angustiore et elytris thorace 



parum longioribus fortiter punctatis. Long. \\ lin. 

 Sahib. Ins. Fenn. i. 433. Zett. Ins. Lapp. 72. Erichson Staph. 899. 

 Found by F. Walker near Alten in Finmark. 



Bor. brevicoUis. Alatus, capite thorace elytrisque punctulatis, thorace breviter ob 

 cordato elytris duplo breviore et capitis fere latitudine. Long. 1 lin. 

 Coryphium angusticolle, Steph. M. v. 344 ? 

 Found once only in the North of Ireland, on the sea-coast at Holywood. 



Genus. — Arpedium. 

 Arp. myops. Capite thorace elytrisque punctulatis, fronte sequata ocellis nuUis. 



Long. % lin. 

 Var. a. Nigrum palporum et antennarum basi pedibusque ferrugineis. 



Omalium suhpubescens, Steph. M. v. 350 ? 

 Var. jS. Flavum antennarum et palporum apice abdomineque fuscis. 



Omalium sordidum, Steph. v. 349 ? 

 Erichson's A. humile from the Ural Mountains comes very near this, yet he could 

 scarcely have overlooked the want of ocelli in our insect. This is a character so sin- 

 gular in this tribe, that I took care to satisfy myself, by a careful dissection of the 

 mouth, that it agrees with Arpedium in every essential character. 



Tribe. — Protein ini. Genus. — Micropeplus. 



The synonymes of the British species have been somewhat confused, but Erichson 

 has cleared up the matter. Stephens has figured M. staphylinoides correctly enough, 

 but his description (excepting the colour of antennae, which is again from nature), 

 seems to be an abstract from G yllenhall's, whose insect was not the Marshamian, but 

 the M. tesserula figured by Curtis. Erichson leaves as a probable species (allied to his 

 M. fulvus) the M. obtusus of Newman. I am rather inclined to think it a coloured 

 variety (such as I possess) of the unarmed sex of M. staphylinoides. 



Tribes. — Staphylinii and Oxyporini. 

 The character by which Erichson discriminates these tribes is insufficient, and vi- 

 olates the most natural affinities. Staphylinus nebulosus and murinus, according to 

 this, should be separated from most of their congeners and carried to the latter tribe. 



Tribe. — Xantholinii. Genus. — Othius. 



0th. 6-punctatus. Rufopiceus capite abdominisque dorso obscurioribus, antennis 

 pedibusque ferrugineis ; thoracis punctis dorsi tribus utrinque ; elytris punc- 

 tulatis. Long. 2i — 3 lin. 



Two specimens found at Holywood. 



