CANARIAN COLEOPTERA. 163 



unidentatis ; prothorace lato, ad latera marginato, intra angulos 

 anticos fovea valde profunda auriculiformi notato, postice canalicula 

 tenui media impresso ; elytris ad apicem valde oblique truncatis, 

 sulco subhumerali sinuato utrinque abbreviato striisque 2 dorsali- 

 bus (sc. 1™'~' abbreviata profunda, et 2^ valde abbreviata quasi fo- 

 veam punctiforraem simulante) impressis ; propygidio utrinque 

 punctis perpaucis magnis irrorato ; pygidio impunctato ; tibiis an- 

 ticis 4-, posterioribus 3-dentatis. — Long. eorp. lin. 6. 



Hololepta Perraudieri, de Mars., Ann. de la ^ioc. Ent. de France, (Si^me 

 s^i-ie) V. 397. pi. 10 (1857). 



Habitat Teneriffam (sec. cl. de Marseul) et Gomeram, rarissima, in 

 hac a Dom. Crotch tempore vernali a.d. 1862 semel deprehensa. 



This large and peculiar Histerid altogether escaped my own obser- 

 vation in these islands, and I should have had no other evidence of 

 its existence beyond the assertion of M. de Marseul (who has figured 

 it, very accurately, from a specimen stated to have been found in 

 TenerifFe by M. Henri de la Perraudiere) had not a single example, 

 now before me, been captured by Dr. Crotch in Gomera. Dr. Crotch 

 informs me that he took the individual referred to in a house at San 

 Sebastian ; and I have but little doubt, therefore, that it must have 

 crawled from out of one of the dried Eu2)horhia-stem.s which it is the 

 custom to bring down from the hills for fuel. It corresponds precisely 

 with de Marseul's admirable diagnosis, except that it is considerably 

 larger than the type which he appears to have described from. 



The excessively depressed and highly polished surface of the H. 

 Perraudieri, in conjunction with its subparallel-oval outline (which, 

 however, is perceptibly wider in front than behind), its elongate por- 

 rect mandibles (which are armed with a small central tooth inter- 

 nally), its large and wide prothorax (which has a deep auricuhform 

 impression immediately within each of its anterior angles, and a thin 

 line, or channel, down its posterior disc), and the two very short 

 dorsal striae (particularly the inner one, which is nearly obsolete, or 

 reduced to a mere fovea) with which its obliquely- truncated elytra are 

 furnished, will suflRce, apart from minor characters, to distinguish it. 



Dr. Crotch has presented his specimen to the British Museum col- 

 lection. 



Genus 118. TERETRIUS. 

 Erichson, in Kluf/ Jahrb. i. 201 (ia34). 



I refer the insect described below to Terefrius because in nearly all 

 its structural characters, and every one of its external ones, it agrees 

 precisely with the members of that group. Nevertheless, on care- 

 fully dissecting it, I find that there are a few points at all events in 



M 2 



