150 SERRICORNIA. [Malthodeg. 



Female with the head narrower, not constricted behind, and the 

 thorax scarcely narrower than the elytra. 



By sweeping and beating ; apparently rare, but it is possible it may be overlooked 

 or confused with other species ; Bishops Wood and Claygute (Power) ; Thornton 

 Reservoir and Markfield, Leicestershire (Power) ; Canuock Chase (Blatch) ; Scot- 

 laud, rare, Solway, Clyde, Tay, and Moray districts (Sharp, Champion, and othere). 



M. dispar, Germ, (neglectus, Muls.). Pitchy black, shiny, with the 

 mouth and base of antennae, and the apex of abdomen and the margins 

 of the ventral segments, yellow ; elytra with apex sulphureous yellow ; 

 head without eyes a little narrower than thorax; antennae rather stout, 

 reaching in male somewhat beyond apex of elytra ; thorax a little 

 broader than long, unicolorous black, shining, anterior margin straight 

 in middle and obliquely cut off on each side, scarcely margined in 

 middle of sides ; * anterior angles blunt, projecting, posterior angles 

 right angles ; elytra about two and a half times as long as together 

 broad, irregularly and obsoletely and rugosely punctured ; legs yellowish 

 with femora usually darker. L. 4 4| mm. 



Male with the head broader than in female, constricted behind ; the 

 last dorsal segment short, the penultimate produced into a tooth on 

 each side, the antepenultimate furnished on each side with a long pro- 

 cess which is hooked at apex; penultimate ventral segment deeply 

 emarginato at apex, the last forming a long style, which projects 

 beyond the last dorsal segment, and is angularly curved in the middle, 

 channelled to base, and narrowly incised at apex. 



Female with the head narrower, with the temples swollen. 



By beating and sweeping in and near woods ; local ; London district, rare, 

 Hickleham, Woking, Wey bridge, Darenth, Hammersmith; Hastings; New Forest; 

 Thornton Reservoir, Leicesterbhire ; Repton ; York ; Whulloy Range, Lancashire ; 

 Stretford, near Manchester; Northumberland and Durham district, rare, Gosforth, 

 banks of Irthiug, and Hetton Hall near Beiford ; Scotland, local, Solway 

 district. 



M . pellucidus, Kies. Of a fuscous livid colour, with the anterior 

 and posterior and sometimes all the margins of the thorax reddish- 

 yellow or yellowish ; antennae fuscous, with the base not lighter; legs 

 fuscous, with the knees and anterior tibiae pale ; margins of ventral 

 segments yellow, elytra sulphureous at apex ; thorax broader than long, 

 hardly visibly punctured, not margined at sides, anterior angles blunt 

 but projecting, posterior angles marked; elytra about three times as 

 long as broad, distinctly broader than thorax, and rather broader than 

 the head with eyes, rugosely and obsoletely punctured, somewhat 

 alutaceous; femora usually darker than the rest of the legs. L. 

 mm. 



* Thomson says of this species, " Prothorax lateribus immarginatis ; " whereas 

 Kiesenwetter says, " Es ist ringsherum, am deutlichsten an den Vonlerecken 

 gerandet." This instance will serve to show the difficulty of tabulating the species 

 by externally apparent ditlcrenccs 



