STAPHYLINIDJE. 523 



taken by the Messrs. Crotch, both in Teneriffe and Gomera, during 

 their late Canarian campaign. 



The IT. ocellatum differs from the sculpticolle in being a little 

 larger, duller, and paler its prothorax and elytra being more or 

 less evidently of a lurid, testaceo-piceous hue, in its head being a 

 little broader, with the eyes somewhat larger, in its prothorax being 

 also wider (or more transverse), more rounded at the sides, and more 

 obtuse at the posterior angles, with the two discal foveae shallower, 

 longer (or more produced in front), and more curved, and with the 

 lateral ones more punctured, in its elytra being a little more deve- 

 loped, as well as somewhat straighter (and much less broadly mar- 

 gined) at the sides, in its abdomen being considerably less shining 

 (the surface being both coarsely alutaceous and with the minute 

 punctules more evident), and in its antennae being relatively a little 

 shorter*. 



1442. Homalium tricolor. 



Ilonialium tricolor, Woll, Append, huj. op. 75. 



Habitat Maderenses (Mad.}, rarissimum ; in Euphorbia quadam 

 emortua a Dom. Bewicke semel repertum. 



A single example of this elegant Homalium (from which my. dia- 

 gnosis, given in the Appendix, has been compiled) was captured by 

 the late Mr. Bewicke in the north of Madeira proper under the 

 bark of a rotten Euphorbia in the Ribeira de Sao Jorge. 



1443. Homalium clavicorne. 

 Omalium clavicorne, WolL, Cat. Mad. Col. 204 (1857). 



Habitat Maderenses (Mad.}, sub cortice Euphorbice melliferce emortuo 

 in locis editioribus degens. 



A beautiful Homalium which has been detected hitherto only in 

 the intermediate and lofty districts of Madeira proper, where it 

 appears to be attached to the putrid wood of the rotten Euphorbias. 

 In the upland region of the Panal I met with it abundantly, in 

 company with the Aphanarthrum and Mesites euphorbia, under the 

 dead bark of the gigantic E. mellifera ; and it was subsequently 

 observed by Mr. Mason in the same locality. 



* The H. ocellatum has been examined carefully by Mr. Eye, who remarks 

 that it has much the fades and size of the nigriceps, Kiesw., as also a good deal 

 in common with the Allardi, Fairm., though with many distinctions of its own 

 to separate it from both of those species. 



