LafJiridius.'] clavicornia. 281 



be regarded as indigenous ; tlie confusion between Uiis and the pre- 

 ceding species is by no means confined to British autliors and collectors. 

 M. Belon (I.e., p. 120) mentions that L. anr/ulatiis " est ovdinaiveinent 

 envoyee sous le nom iX^angutiticollis, et est ainsi etie^^uetee dans la plupart 

 des collections.") 



CONZNOMUS, Thomson. 



Tlie species belonging to this genus are smaller and narrower insects 

 than those contained in the preceding genus, from which they arc 

 further distinguished by the more abrupt club of antennis and larger 

 temples, and by having the thorax strongly incised at the sides behind 

 middle ; from the following genera they are separated by the raised keels 

 on the thorax ; there are three British species^ of which one is probably 

 nothing more than a variety. 



I. Club of antcnnffi very abrupt, S-jointed; elytra tuber- 



euhxte towards apex C nodifer, Westiv. 



II. Club of auteuiijB very abrupt, 2-joiuted ; elytra witli 

 the alteruate interstices more or kss raised, but not 

 tuberculate. 

 i. Anterior coxae separate ; alternate interstices of elytra 



only slightly raised in ridges C. CONSTRlCTtrS, Siiinm. 



ii. Anterior coxa3 contiguous ; alteruate interstices of 



elytra plainly raised in ridges C. caeijtatuS, Gyll. 



C> nodifer, "VVestw. Somewhat elongate, black or pitchy-brown, 

 occasionally ferruginous, a little shining, not pubescent ; head nearly as 

 broad as thorax ; antennas ferruginous with 3-jointed club ; thorax 

 longer than broad together with head rugosely sculptured, with dorsal 

 keels well marked, anterior angles rounded, sides strongly incised behind 

 middle ; elytra elongate oval, strongly impiessed before and at mi:ldle, 

 Avith somewhat obsoletely punctured striaj, alternate interstices raised in 

 keels, with the third from suture raised in a strong t\ibercle behind 

 middle, and the fifth raised at apex ; legs lighter or darker ferruginous, 

 tarsi lighter. L. 2 mm. 



Male with the posterior tibiae dilated and deeply emarginate on their 

 inside border towards extremity. 



In vegetable refuse, moss, woodstacks, faggots, &e. ; common and generally dis- 

 tributed throughout England; Scotland, Tweed, Forth, and Solway districts; 

 Ireland, near Waterford : this species used to be considered rare, but has gradually 

 become more and more common of late years ; in some localities it swarms ; it 

 appears to be cosmopolitan, and to be identical with L. autipodum described by 

 White from New Zealand in 1816 (Voy. Ereb. Terr., p. 18). 



C constrictus, Humm. Somewhat elongate, slightly convex, 

 glabrous, shining, of a clear testaceous brown colour ; head oblong, 

 narrower than thorax, rugosely punctured ; antenna? testaceous, rather 

 slender, with 2-jointed club ; thorax about as long as broad, 

 rugosely punctured, anterior angles rounded, deeply incised behind 



