the British Species of Aleuonota, Atheta and Sipalia. 307 
3, 7th dorsal plate with a tubercle, 8th dorsal plate at 
hinder margin with four more or less distinct teeth. 
Length 4mm. .. ee Laneeeia,. Th; 
— Smaller, rather fevriln a species, Head and thorax very 
shining, temples dilated, abdomen Cape punctured 
and pubescent out ; 138. 
138. More depressed, abdomen more a) tise paiangueds 
antennae more slender. 4, 7th dorsal plate with a 
tubercle, 8th dorsal plate with four teeth at posterior 
margin, the outermost on either side being less marked. 
Length 3mm. . . - + « 17 etchhoffi, Scriba. 
— Less depressed, a dinien very sparingly punctured, 
antennae stouter. 4, characters as in preceding 
species. Length3 mm. 16 debilicornis, Kr. (planifrons, Wat.). 
139. Species pitchy brown or reddish brown, dull with greasy 
lustre only. Antennae brown with yellow base. 
Abdomen black with margins of segments and apex 
reddish. Facies of small languida. 3, 7th dorsal 
plate with a tubercle. 8th with six teeth at pos- 
terior margin, four placed near the middle. Length 
o2-36mm. . . . +» «©. 21 longicollis, Rey. 
— Species black, rather seieiicgs elytra often brown or 
pitchy. Antennae dark with base lighter . . . 140. 
140. Species narrower. Abdomen often more or less pointed, 
finely and closely punctured and pubescent through- 
out. First joint of posterior tarsi much longer than 
second. <4, 6th ventral plate produced and rounded. 
°, 6th ventral plate notched. Length 2°5-3 mm. 
10 luteipes, Er. 
— Species broader and more robust. Abdomen much less 
closely punctured and pubescent especially towards 
apex. Ist joint of posterior tarsi not longer than 2nd. 
3, 6th ventral plate narrowed and produced. Length 
35mm. . . . . 3 arctica, Thoms. (clavipes, Shp.). 
141, Elytra yellowish brown, head and thorax pitchy black 
or pitchy brown, abdomen with margins of segments 
and apex reddish. Species dull . ... . . . 42. 
— Elytra dark brown or black, abdomen black . . . 148. 
142. Broader and more depressed. 3, 8th dorsal plate 
emarginate, 6th ventral plate considerably produced, 
the apex turned upwards and the sides narrowed in the 
middle. 9, 8th dorsal plate feebly emarginate, 6th 
ventral plate rounded. Length 4~4°5 mm. 
22 luridipennis, Mann. 
