94 SERRICORNIA. \Mf(japcnt)<e8. 



In decaying timbor, Ac.; very rare; Highgntc (Jnnson) ; Stockwell, Simvy 

 (Montague); Micklcham (Marsh, one example ou nettle bloom). 



M. tibialis, Lac. (Ampedus subcarinatua, Germ.). This species 

 may at once be distinguished from the preceding by its much more 

 shining appearance and the sculpture of the thorax; it is also more 

 l>arallel-sided and less convex; colour black, rather sinning, clothed 

 with thin greyish pubescence ; head rather thickly and strongly punc- 

 tured, antennae feebly serrate, black or pitchy ; thorax longer than 

 broad, gradually rounded and narrowed in front, with posterior angles 

 strongly projecting and carinate, central furrow rather distinct, punc- 

 tuation distinct, more sparing on disc, thicker at sides; scutellum large ; 

 elytra with rather strong punctured striae, interstices less coarsely 

 sculptured than in the preceding species ; femora pitchy, tibiae and tarsi 

 ferruginous or reddish-testaceous ; under-side of abdomen clothed with 

 yellowish pubescence. L. 6-8 mm. 



Male with the antennae considerably longer than in female. 



In decaying oaks; very rare; Richmond Park (Champion); Black Park, May 

 24th, 1857 (Wallace) ; Tootiug Common (Stevens); Wanstead (Jausou) ; Windsor 

 (Gricsbach). 



ZiUDZUS, Latreille. 



This genus contains about thirty species, which are very widely 

 distributed, representatives having been recorded from Alaska, Oregon, 

 Texas, Mexico, Cayenne, and Chili, as well as from Central Asia, Ceylon, 

 Java, Celebes, and the Australian region; three are found in Europe, of 

 which one has been found in Britain ; it is one of the largest and finest 

 of our Elateridae, and one of our rarest indigenous insects ; it may be 

 known by its large broad form and ferruginous colour, the very 

 short and almost equal second and third joints of the antennae, and 

 the fact that the margin of the front is not elevated behind the 

 labrum. 



The larva of L. ferrugineus is described by Schiodte (Part v. p. 514) ; it much 

 resembles those of certain species of Elater, and occurs in decaying wood. 



Zi. ferruginous, L. A very large broad and rather dull species ; 

 head black, thorax rufo-ferruginous, with the base and angles black; 

 elytra ferruginous ; under-side entirely black ; pubescence of upper 

 surface fine but moderately close, yellowish, of under-side very fine and 

 scanty, greyish ; head thickly and rather strongly punctured, antennas 

 black, short, rather strongly serrate from the fourth joint, second and 

 third joints very short, about equal, last joint long and pointed; thorax 

 broad, with sides gradually rounded and narrowed from base to apex, 

 very thickly punctured, with slight traces of a central furrow, posterior 

 angles long and sharply projecting, and strongly carinate, but not 

 divaricate; scutellum oblong, thickly punctured; elytra broadest about 



