522 



STAPHYLINIDJE. 



cularly those of the genera Cytisus and Spartium ; and although i 

 descends sometimes into the intermediate districts, it is in the higher 

 ones that it attains its maximum. Indeed on the upland Cumbr 

 of Teneriffe, ranging from about 6000 to 9000 feet above the se 

 I have beaten it in absolute profusion off the blossoms of the 

 Retama ; and I have taken it likewise in Grand Canary, Palma, and 

 Hierro. Its detection in Gomera is due to the researches of the 

 Messrs. Crotch. 



Genus 420. HOMALIUM. 

 Gravenhorst, Col. Micropt. 116 [script. Omalium~\ (1802). 



1440. Homalium sculpticolle. 



Homalium sculpticolle, Wott., Cat. Can. Col 602 (1864). 



Habitat Canarienses (Ten., Palma), hinc inde sub lapidibus et ster- 

 core, in intermediis editioribusque, rarissimum. 



Detected in the Canarian Group, at a rather high elevation, 

 have captured it above the Agua Mansa in Teneriffe (beneath small 

 stones, in an open basaltic cavern, at the foot of the Organo Rocks), 

 as well as in the district of the Banda in Palma. In Teneriife it 

 was likewise met ^with, though sparingly, by the Messrs. Crotch 

 under dung, above Ycod el Alto. 



The H. sculpticolle is very closely allied to the common European 

 H. ripariwm, of which indeed I feel far from certain that it is more 

 than a geographical state. It appears to differ from it merely in 

 being a little smaller, with its punctation a trifle denser, finer, and 

 (at any rate on the elytra) more asperate, in its prothorax being 

 relatively somewhat narrower or less decidedly transverse, and in 

 its antennae being rather shorter and slenderer, and a little blacker 

 towards their apex, but more refuscent at their base. 



1441. Homalium ocellatum. 



Omalium ocellatum, Woll, Ins. Mad. 613 (1854). 

 , Id., Cat. Mad. Col 204 (1857). 



Habitat Maderenses (Chao) et Canariense8.(jTm., Gom.\ rarissimum. 



Likewise extremely rare, but found both at the Madeiras and 

 Canaries. From the former Group the only specimen which I have 

 yet seen was captured by myself (during June 1850) on the northern 

 Deserta, or Ilhco Chao ; whilst in the latter a few examples were 





