Mr. J. Walton on the genus Sitona. 229 
described by Stephens under the name of Sit. tibialis of Herbst, 
after Gyllenhal, and he has quoted Cure. chloropus in his ‘ Syst. 
Catal.’ as synonymous ; but I think Marsham’s description of the 
sculpture on the thorax agrees better with the former, I have 
therefore placed a note of interrogation. Cure. subauratus and 
C. pleuriticus of Kirby MSS. and collection are identical, and are 
most decidedly specimens of Stt. sulcezfrons. 
_ It may be known from all the species of this section by its 
smaller size and by its proportionably shorter form. 
Found abundantly in many localities amongst grass and in 
hedges in the spring and autumn. 
5. Sitona lineata, Linn., Mus. Linn., Germ., Steph., Schonh. 
Curc. lineatus, Fab., Marsh., Gyll., Kirb. MSS. 
— ruficlavis, Marsh. 
— griseus, Marsh., non Fab. 
— griseus (var. 3.), Kirb. MSS. 
Recent specimens of this insect may generally be known by 
having the alternate interstices of the elytra covered with paler 
scales than the others, and are more or less distinctly lineated; - 
but they are sometimes concolorous and not lineated ; individuals 
of this and many other species (especially those which are clothed 
with silvery-gray scales) are from age very subject to abrasion, 
and these occur not unfrequently with the upper surface very 
thinly or unequally clothed with scales ; sometimes the shoulders 
and scutellum are maculated, or with an abbreviated streak ; at 
other times immaculate and more or less denuded; nevertheless 
they may be distinguished, without difficulty, by a comparative 
examination of the form and sculpture, which may be more 
easily seen than expressed: the females are more robust. 
Cure. ruficlavis and Cure. griseus of Marsham are varieties, 
sparingly clothed with silvery-gray scales, with the elytra con- 
colorous or partially denuded. 
The most abundant species of the genus, everywhere common, 
and sometimes found in great numbers amongst peas and beans. 
6. S. puncticollis, Kirb. MSS., Steph. 1831. 
— octopunctatus, Germ. in Litt. 
— insulsus, Schonh. 1834. 
Cure. flavescens (var.), Kirb. MSS. 
I sent specimens of this insect to Schonherr and Germar as 
“ Sit. puncticollis of Kirby, nigriclavis, longiclavis et flavescens, 
Marsh. ;” the former referred them to Sitones insulsus* ; and the 
latter observed, that “ Sit. puncticollis of Kirby, insulsus of Schénh.., 
is the true Sit. octopunctatus, Germ. ;” which opinion is further 
corroborated by a foreign specimen sent by him for my inspec- 
* Schénh. Syn. Ins. ii. p. 103. no. 9 (1834). 
