Lucanus. | LAMELLICORNIA., 5 
Z. cervus, 1. Black or pitchy black with the elytra lighter or 
darker castaneous, usually darker in the females than in the males; 
antenne strongly geniculate with 4-jointed pectinate club ; scutellum 
punctured at base with traces of a raised line; legs long, anterior tibie 
more or less strongly toothed externally. In the larger males the head 
is much broader than the thorax, and sometimes quite as broad as the 
elytra ; the mandibles are strongly developed, and are sometimes very 
large; they are furcate at apex, and furnished with a large tooth in the 
middle ; in the smaller males (L. dorcus, F.) the head is about as broad as 
the thorax, and the mandibles are toothed before middle; the head and 
thorax in the male are finely pubescent, dull, and rugosely punctured, 
and the latter is very transverse and not convex, with the sides angled 
behind middle; in the female the head and thorax are witiout 
pubescence, the head is much narrower than thorax, strongly and 
rugosely punctured, and the thorax shiny, ample, and convex, finely but 
distinctly punctured on disc and rugosely at sides; in both sexes the 
thorax shows a trace of a longitudinal raised central line; the man- 
dibles are very short but very strong in the female, and the legs are 
much shorter and stouter than in the male; the elytra are more finely 
punctured and duller in the male than in the female. L. 20-50 mm. 
On palings, &c., and very often captured on the wing towards evening; generally 
distributed and common throughout Kent and Surrey, and not uncommon in other 
southern counties; Arnndel; New Forest; Southampton; Havant; Devon; it also 
occurs in Essex, Berks, Suffolk, &c.; it is rare in the Midlands, but has been recorded 
by Mr. Blatch from Bewdley, and by Mr. Garneys from Calke near Derby ; it does not, 
however, occur further north ; Dillwyn says that he has found it cast up upon the shore 
at Swansea, and adds, ‘as it has a Welsh name, ‘ Huil Cornoc,’ it might be supposed 
to be frequent, but with this exception I have never found it in the principality.” 
DORCUS, McLeay. 
This genus contains about fifty species, which are widely distributed, 
representatives occurring in North America, India, China, Japan, the Malay 
Archipelago, &c.; four are found in Europe, of which one only occurs in 
Britain ; the larva does not differ materially from those of other allied 
genera ; it appears chiefly to attack ash, elm, and willow trees. 
D. parallelopipedus, L. Oblong, subparaliel, dull black, rather 
depressed, more shining in female than in male; elytra closely and 
rugosely punctured ; male with the head and thorax very dull, the 
former as broad as the latter, labrum broa i and short, truncate ; mandibies 
larger, with a very large and obtuse tooth in middle ; head and thorax 
very finely and diffusely punctured and shagreened between the punctures ; 
intermediate and posterior tibiae with a spinose tooth on their external 
side behind middle ; female with the head narrower than the thorax, and 
the mandibles much less strong, with feeble central tooth; head and 
thorax rather shiny, the former thickly and rugosely punctured in front 
with two tubercles about middle, the latter not punctured very closely 
