CANARIAN COLEOPTERA. 



193 



The geographical range of the P.porckolUs is almost identical with 

 that of the last species, being found, like it, in the south of Europe 

 and the north of Africa. At the Madeii'an Group it occurs about 

 the roots of sand-plants behind the sea-beach in Porto Santo ; and 

 at the Canaries I have taken it in precisely similar situations — near 

 Arrecife of Lanzarote, and (more particularly) at Corralejo, in the 

 extreme north of Fuerteventura. 



Fam. 26. TROGIDiE. 



Genus 130. TROX. 

 Fabricius, FM. Syst. i. 86 (1792). 



311. Trox confluens, n. sp. 



T. subovato-oblongus, niger, marginibus longe fulvo-ciliatis ; clypeo 

 apice subporrecto acutiusculo ; prothorace inaequali, sat dense in- 

 asqualiter punctato; elytris singulis 10-striatis (striis latis, utrinque 

 costula marginatis) , interstitiis depressis subnitidis seriatim tuber- 

 culatis (serie alterna majore), tuberculis singulis postice parce et 

 breviter fulvo-fasciciilatis ; antcnnis rufo-ferrugineis ; tarsis pi- 

 ceis ; tibiis anticis subgracilibus, processu obtusissimo (e dentibus 

 duobus omnino suifusis confluentibus composite) extus terminatis 

 et pone hunc dentibus duobus brevibus valde obtusis armatis. — 

 Long. Corp. lin. 3|. 



Trox hispidus?, Bridle {nac Fab.\ in Webb et Berth. (Col.) GO (1838). 



Habitat Teneriffam, juxta oppidum Sanctam Crucem exemplar 

 unicum cepi. 



After comparing this Trox carefidly with the tyi^es of no less than 

 nine species which have been lent me by Dr. Schaum, and four more 

 in my own possession, I cannot identify it with any of them ; and 

 although I have unfortunately but a single example to compile my 

 diagnosis from, I am nevertheless compelled to regard it as new. 

 Indeed, in the structure of the tooth at the outer apex of its front 

 tibiae it differs from all the members of the genus to the descriptions 

 of which I have had access ; for whilst that process is composed 

 normally of two teeth more or less s?(6confluent (and usually very 

 distinct from each other), in the present species (judging £rom the 

 individual before me) they are completely suffused, so as to form a 

 single obtuse projection having no appearance whatsoever of being 

 even ohsoletely bipartite. In other respects the T. confluens is about 

 the size and general outline of the European T. sabulosus, but is rather 

 more oblong and much less coarsely (and differently) sculptured. Al- 



