Coleopter a of the Canary Islands. 187 



Homalota coriaria (Miller), Kraatz, Nat. der \n&. Deutsch. ii. 

 282 (1856). 



, Woll., Cat. Mad. Col. 177 (1857). 



Habitat in ins. Lanzarota, Canaria, Teneriffa, Gomera et Palma, 

 liinc inde vulgai'is. 



The H. coriaria may be known from the two preceding species, 

 to which it is somewhat allied, by, inter alia, its rather smaller size, 

 very much shorter pubescence, more delicate punctuation, and by 

 the darker hue of its elytra. Its prothorax, also, has a greater or 

 less tendency for a wide but shallow depression in the centre be- 

 hind ; and its antennae are but obscurely diluted at their base. 

 Although frequently found in the damp, rotting Euphorbia-stems, 

 it is by no means peculiar to them — occurring equally almost 

 everywhere, under decaying vegetable refuse. I have taken it in 

 Lanzarote, Grand Canary, Teneriffe, Gomera and Palma ; and it 

 is, also, an abundant insect in Madeira. 



45. Homalota vagepunctata, n. sp. 



H. sublinearis, nigra, nitidissima, parcissime punctata, longe sed 

 parce pubescens ; capite parvo, subrotundato ; prothorace 

 elytrisque fuscis, convexis, illo transverso postice rotundato 

 baud carinato ; antennis gracilibus, nigro-fuscis ad basin dilu- 

 tioribus ; pedibus gracilibus, dilute testaceis. 



Long. Corp. lin. 1 — l^. 



Habitat Lanzarotam et Fuerteventuram, inter Euphorbias hauJ 

 infrequens. 



The shining and very remotely punctured surface of the present 

 Homalota, in conjunction with its small, rounded head and slender 

 antennae, its coarse but distant pubescence, and its convex, dark- 

 brown prothorax and elytra, will at once characterise it. In its 

 general contour and aspect it is somewhat allied to the // . clientula 

 and fungi of more northern latitudes, though totally distinct from 

 them. It is not uncommon amongst the Euphorbias (occasionally 

 to be found even on their florvers) in the north of Lanzarote ; and 

 I have also captured it, though more sparingly, in Fuerteventura. 



(Sub-fam. STAPHYLINIDES.) 



Genus Xantholinus. 

 Dahl, Encyclop. Method, x. 475 (1825). 



§ III. (operis Erichsoniani.) " Thorax punctorum seriebus dor- 

 salibus rectis lateralibusque liluis impressus " (p. 319). 



46. Xantholinus marginalis* n. sp. 



X niger, nitidus ; capite convexo, basi truncato, sat dense 



