449 RHYNCHOPHORA, [Tomicus. 
Forest; Liverpool district; Dunham Park and Dukinfield, Manchester district 
(Chappell) ; Scotland, Forth and Dee districts; the species extends to Siberia. 
T. nigritus, Gyll. (suturalis, Gyll.?). Very closely allied to the 
preceding from which it differs in being, on an average, slightly smaller, 
with the pilose pubescence white, and the punctured striez of the elytra 
less strong, and also by having the posterior excavation less extensive, 
more obsoletely punctured, and less strongly denticulated at the sides, 
and the club of the antenne subtruncate at apex instead of rounded, 
with the divisions of the joints curved instead of straight. The female 
has the posterior excavation of the elytra denticulated at the sides, with 
three larger sharp teeth, whilst in the male the apex is pitchy red and 
the sides of the excavation are crenulate and the teeth are smaller, 
L. 4 mm. 
Under bark of Coniferz (firs, pines, &c.) ; very rare ; Scotland, Moray district, 
Strath Glass, Inverness-shire (Sharp) ; Mr. Chappell also records it from Dukinfield 
in the Manchester district, but this may be in error, 
Tt is very possible that 7’. amitinus, Hich. (wylographus, Redt.) may 
be found mixed with 7’, typographus in British collections ; it may be 
distinguished by its smaller size (4-43 mm.) and the following 
characters: thorax more narrowed in front, dorsal interstices of the 
elytra flat and somewhat rugose with a distinct row of punctures ; 
apical concavity of elytra shiny with scattered rugose punctures: in 
T. typographus the dorsal interstices of the elytra are convex smooth 
and impunctate ; the last-mentioned insect is more attached to the pine 
than 7’. amitinus which is, as a rule, a spruce feeder. 
PITYOGENES, Bedel. 
This new genus contains three species only, which are separated from 
Tomicus by the fact that the prosternum has no intereoxal process, and 
that the females have a deep impression at the apex of the elytra near 
suture ; in the males only the apex is excavate and is furnished with 
strong teeth ; the tibiz are linear and have no furrows for the reception 
of the tarsi, a point that will distinguish them from Xyleborus, while 
from Xylocleptes they may be known by the distinct scutellum and the 
shape of the second joint of the antenne ; they appear to be somewhat 
closely allied to Pityophthorus and have been included under that genus 
by several authors, but the absence of an intercoxal process to the pro- 
sternum and of a basal border to the thorax will serve to separate them, 
I. Sides of elytra smooth behind; male with the in- 
ternal margin of each elytron armed behind with 
three equidistant teeth ; forehead of female with a 
GeapuamMpressiony sm. ely Ger eae Ome Me Te Tore) ce 
II. Sides of elytra punctured to apex; forehead of 
female always convex, 
i. Body behind thorax twice as long as broad; 
P, cHaLcocrapHtus, LZ, 
