Luainus.] LAMELUCORXIA. , r 



Zi. cervua, L. Black or pitchy black with the elytra lighter or 

 darker castaneous, usually darker in the females than in the males ; 

 antennae strongly geniculate with 4-jointed pectinate club ; scutellum 

 punctured at base with traces of a raised line ; legs long, anterior tibiae 

 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 a 

 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 without 

 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, Ac. ; 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 ; Dill wjn 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. parallelopipedua, 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 ; mandibles 

 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 th>ir 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 rugosaly punctured in front 

 with two tubercles about middle, the latter not punctured very 



