152 CANAEIAN COLEOPTEKA. 



25G. Latridius ruficoUis. 



Corticaria mficollis, Mshm, Ent. Brit. i. Ill ( 1802). 

 Latridius nificollis, Steph., III. Brit. Ent. iii. lU (1830). 

 Latliridiiis lilipiitanus, Mmin., in Germ. Zritsch. v. 85 (1844). 

 ruficoUis, Woll, Cat. Mad. Col. 06 (1857). 



Hahhat Ljinzarotam borealem, prope oppidum Haria semel leetus. 



The only Canarian example of this Eiu'opeaii Latridius which I 

 have yet seen was taken hj myself, from beneath the refuse at the 

 base of a corn-stack, at Haria, in the north of Lanzarote. It occurs 

 in similar positions at Madeira. 



Fam. 20. MYCETOPHAGID^. 



Genus 108. MYRMECOXENUS. 



Clievrolat, in ISilh. Bcv. iii. 207 [script. Myrmechixenus^ (1835). 



257. Myrmecoxenus sordidus, n. sp. 



M. rufo-ferrugineus, subnitidus, parce cinereo-pubeseens ; capite pro- 

 thoraceque dense et sat fortiter punctatis, h(k' rotimdato-quadrato 

 ^wstice \'ix attenuato ; elytris paulo obscurioribus, vix minus dense 

 punctatis ; antennis pedibusque rufo-testaceis. — Long, coi'p. lin. 

 vix 1. 



Habitat Fuerteventuram, sul) stercore camelino ad llio Palmas de- 

 lectus. 



Although unwilling, in a small and rather obscure genus, to estab- 

 lish a species on the evidence afforded by merely two examples, I am 

 nevertheless compelled to do so in this instance, since I cannot refer 

 the present Myrmecoxenus (though partaking, in a measure, of the 

 characters of them all) to any of the three European exponents of it 

 which have been hitherto recognized. Thus, from the M. vapora- 

 riorum it differs, inter alia, in its smaller size, darker hue, and more 

 deeply punctured and less densely pubescent surface ; from the sub- 

 terraneus it may be known by being a trifle larger and broader, with 

 its prothorax less straightened (and less narrowed) behind, and (to- 

 gether with the head) of a paler hue, and by its surface being rather 

 more pubescent ; whilst from the picinus its much paler colour and 

 longer and coarser pile, combined with its more thickly and less 

 strongly punctured surface, and its duller, somewhat flatter, and less 

 cylindric body, wiU equally remove it. The M. epulo, Miiklin, I 

 have not been able to procure for comparison ; so that I am unable 

 to say to what extent the Canarian one may tally with that insect. 

 The only two specimens of it which I have seen hitherto were cap- 



