386 PHYTOPHAGA,. [ Chetoenema, 
C. subceerulea, Kuts. (Saklbergii, pars. auct.). Rather elongate, 
moderately convex, of a unicolorous deep dark blue colour or nigro- 
ceruleous ; head broad, very closely and finely punctured, antennz 
dark with the basai joints red, at all events on their under-side ; 
thorax not strongly transverse, broadest in middle, finely and very 
closely, but distinctly punctured; wings present; elytra at base 
scarcely broader than thorax, rather strongly punctured in rows, which 
are irregular near suture towards base, but become regular at apex; legs 
ferruginous, more or less infuscate, variable in colour, all the femora 
dark. L. 2-2; mm. 
Marshy places, by sweeping herbage ; also in moss and at the roots of grass; very 
local, but sometimes common where it occurs, although not always; Wimbledon, 
Weybridge, Ripley, Esher, Chobham, Balcombe, Cowfold ; Windsor ; Pegwell Bay ; 
Dover; Hastings; St.. Leonards. Forest; Portsmouth district; New Forest; San- 
down, Isle of Wight; it does not occur north of the London district. 
This species has been much confused with C. Sah/bergi, which may 
be easily distinguished by its evidently more strongly punctured fore- 
head; the general punctuation also is stronger, but this is not so 
apparent. 
Cc. aridula, Gyll. Oblong-ovate, rather convex, eeneous or nigro- 
geneous, moderately shining ; head very finely punctured, antenne black 
with the base red, the first joint dark on its upper surface, and the 
second, and sometimes the following, dark at apex ; thorax about half 
as broad again as long, according to Allard much longer than in 
C. aridella, compressed in front, finely and thickly punctured ; wings 
absent ; elytra broader at base than thorax, punctured much as in the 
preceding species ; femora dark, tibiew and tarsi variable, ferruginous, 
more or less infuscate. L. 2{;-23 mm. 
Damp places, by sweeping herbage; very rare ; Woking (Champion); Loughton, 
Essex (Champion); Portsmouth district (Moncreaff); Strensall, York (Hey). 
According to Aliard, this species closely resembles C. aridella (hor- 
’ tensis), from which it is distinguished by its very finely punctured head 
and thorax, the longer thorax, and the fact that the base of the antenn 
are spotted with black ; the latter point has given rise to many mistakes, 
as all the species except P. arzde/la have the base of the antenn» in 
mature examples coloured in much the same fashion, 
Cc. confusa, Boh, Allied to the preceding, but broader, and, as a 
rule, of a darker colour; the punctuation also is stronger, and that of 
the elytra more confused towards base; the punctuation of the forehead, 
at all events in the centre, is more diffuse and finer than in either of 
the preceding species ; the upper surface is very shining ; the thorax is 
broadest a little behind middle, and is finely and thickly punctured ; 
the wings are rudimentary; the elytra are almost confusedly punctured 
on dise, the rows in front being scarcely traceable ; the femora are dark, 
