2 THE ENTOMOLOGIST. 
M. Victor Motschulsky has since pointed out (Bull. Soc. Imp. 
Nat., Moscou, 1867, p. 98) that the males of some of the species 
have the antenne 9- and the females 10-jointed, whereas in 
other species both sexes have the antenne 11-jointed; upon 
these characters he divides the species into two genera, adopting 
the name Holoparamecus for those having the antenne composed 
of nine or ten joints, and Calyptobium for those with eleven; he 
also states that H. singularis, Beck., and H. depressus, Curtis, are 
not synonymous. After carefully examining a great number of 
specimens from various localities, I have come to the conclusion 
that they are really distinct species; and, having at my disposal 
examples of both these insects, I thought it would be interesting 
to publish descriptions of them, so that collectors may recognise 
the two, if they are so fortunate as to possess them. 
I have also described a species which has not hitherto been 
recorded as British, and which appears on the Continent to be an 
uncommon insect. 
Section A.—Antenne 9-jointed in male, and 10-jointed in 
female (Holoparamecus). 
HoLoPARAMECUS DEPRESsus, Curtis. 
Male.—Pale reddish testaceous, elongate and subdepressed, 
rather shiny, very sparingly clothed with fine silky pubescence. 
Head small, rounded in front, and covered with minute close. 
punctures. Eyes rather large and convex. Antenne 9-jointed; 
basal joint short and stout, second and third long and slender, 
fourth to sixth small and subglobose, seventh a little larger than 
the preceding, the eight and ninth forming an abrupt ovate club, 
of which the apical joint is slightly the smaller. Prothorax 
broader than long, moderately constricted behind, the posterior 
angles elevated; with a deep fovea upon its disc; marked at the 
base with two transverse lines, of which the anterior is bisinuate ; 
these transverse lines are joined in the centre by a little 
impression, and on each side by a longitudinal furrow, com- 
mencing at the base. Elytra considerably broader than pro- 
thorax at the base, with irregular rows of rather coarse 
punctures; humeral prominences small, but distinctly visible; 
sutural stria commencing at the base, but effaced posteriorly; 
each elytron with a very indistinct oblique impressed line, 
running from the shoulder to the apex. Length, 1—1} mm. 
