54 



CAN.VKl AN COLEOrXERA , 



first of them (the Lanzarotan and Fuerteveutiiran C. solitarms) has 

 certainly much the facies of a small Acinoinis, nevertheless its per- 

 fectly toothless mentum and the well-defined hinder angles of its 

 pro thorax would seem to assign it to Cratognatlms rather than to 

 that group. Indeed Cratognatlms (of which the " Ilarjxdns vividus" 

 from Madeira, and the " H. pclagicus *," from the Salvages, are also 

 undoubted members) appears to be universal throughout these At- 

 lantic islands, and it is probable therefore that there are members of 

 it yet to be detected. It differs mainly from Harixdus proper (into 

 which, however, it almost merges) in the tendency of its head, par- 

 ticularly in the male sex, to be greatly enlarged, in the emargination 

 of its mentum being deep and quite simple (even the rudiments of 

 the tooth which is seldom, if indeed ever, altogether untraceable in 

 the true HarpaU being apparently absent), in its mandibles being 

 perhaps slightly obtuser, in its wings being obsolete, and in the more 

 developed spurs of its anterior tibia?. The Cratognathi are usually 

 smaller and less cyhndric than the Acinopl, but on the average per- 

 haps a trifle larger than the ordinary Harpali ; and in colour they 

 are almost invariably of a more or less dark piccous (seldom com- 

 pletely black), and quite free from any metallic tinge. 



84. Cratognathus solitarius. 

 C. ater, subcylindrieo-oblongus ; capite magno ; prothoraee subqua- 

 drato postice vix angustiore, basi utrinque fovea sat profunda punc- 

 tata impresso; elytris oblongis, profunde crenato-striatis, interstitio 

 septimo ad apicem ipsissimum punctulis circa 2-4 (interdum in- 

 distinctis confusis) notato ; antennis, palpis tarsisque rufo-ferrugi- 

 neis, femoribus tibiisque piccis. — Long. corp. lin. 4|-5. 



Cratognathus solitarius, Woll, Ann. Nat. Hist. (3rd ser.) xi. 215 (1863). 

 Hai"palus consentaneus, Hartunc/ [nee Dtj.~\, Gcolog. Verhaltn. Lanz. 

 unci Fucrt. 140 et 141. 



Habitat Lanzarotam et Fuerteventuram, sub lapidibus in locis in- 

 termediis et elevatioribus sat vulgaris. 



The more cylindric outline and blacker hue of this insect, combined 

 with its deeply crenate-striated elytra and general aspect, give it more 

 the character, prima /acie, of a small Acinopus than of a Cratognathus ; 



* This insect, which I described in a paper on certain Coleoptera from the 

 Salvages, published in the ' Journal of Entomology,' vol. i. p. 88, differs from all 

 the species here characterized in being reMivcly broader, and with its prothorax 

 (which is but very obsciu-ely impressed beliincl) much more rounded (and mh- 

 cqually so) at the sides, — causing the angles to be more obtuse. Its elytra (which 

 are subopake in the females) are only lightly striated in both sexes, and their 

 seventh interstice has a few small punctules (as in the C. solitarms) at its extreme 

 apex, — wliich last is less produced than is the case in its allies here enumerated. 

 Perhaps it has more afllnity with the G. fortunatus, from Grand Canary, than 

 with any of the others. 



