the British Species of Aleuonota, Atheta and Sipalia. 305 
127. 
128. 
128. 
crenulate. 6th ventral plate produced. 9, 6th 
ventral plate slightly emarginate. Length 3°5-4 mm. 
105 aquatilis, Th. 
Elytra distinctly transverse, facies of large castano- 
ptera. Puncturation of thorax fine, not rugose. An- 
tennae testaceous more or less infuscate towards apex, 
the last joint longer than the two preceding together. 
g, last joint of antennae longer, 8th dorsal plate trun- 
cate, 6th ventral plate produced and rounded. Length 
4mm; .° . - «+ « 100 incognita, Shp. 
Antennae sntinely elarks saulpitive of elytra consisting 
of small granules, dark brown or black: head and 
thorax shining black. Legs testaceous with femora 
darker. 3, granules of elytra much coarser. 7th and 
8th dorsal plates studded with granules, 8th plate 
truncate and crenulate posteriorly, 6th ventral plate 
produced and slightly notched. Length 3°8-4°3 mm. 
113 graminicola, Gr. 
Antennae with base lighter . . . aan, “128. 
Thorax reddish testaceous, elytra fesanonties abdomen 
with base and apex pitchy. Species of bright appear- 
ance. <4, 8th dorsal plate sprinkled with granules, on 
each side near apex with a short raised ridge. Length 
448mm... . Pere SLO pagana; Hr: 
Thorax black, alan vellowish bidntn coe Wlds eas. “L2O- 
Last joint of antennae rather longer than the two pre- 
ceding together. Species more robust, more shining, 
head and thorax much more finely and sparingly 
punctured, elytra more thickly punctured. 8th dorsal 
plate crenulate at hinder margin, teeth about 8 in 
number. Length4-45mm. . . . . 101 ¢ valida, Kr. 
Last joint of antennae nearly as long as the three pre- 
ceding together. Species less robust, less shining, 
head and thorax more coarsely and closely punctured, 
elytra more sparingly punctured. , 8th dorsal plate 
truncate and furnished at hinder margin with about 8 
crenulations. Length 3°5-4 mm. 
104 castanoptera, Mann. (xanthoptera, Steph.). 
. Larger and more robust species. Length 4-43 mm. . 1381. 
Smaller and more delicate species. Length 2-3mm. . 132. 
. Thorax scarcely narrowed behind, quadrate, species 
pitchy brown, dull, abdomen with hind margins of 
segments» and apex lighter, closely punctured and 
pubescent. 3, 7th dorsal plate with a tubercle, 8th 
