CANARfAN COLEOPTERA. 579 



long (or more straightly truncated behind), more sparingly punctured, 

 and with the frontal sulci longer, wider, and deeper ; its prothorax 

 has the punctures of its doi'sal series rather diminished in number 

 (there being usually from about nine to eleven of them), and those 

 of the lateral ones fewer and less confused (or with an evident ten- 

 dency to arrange themselves in a curve) ; and its elytra are some- 

 what more remotely and coarsely punctured, and have their apical 

 edge (and frequently the suture also) more or less translucid, or tes- 

 taceous. 



883. Xantholinus punctulatus. 



Staphylinus pimctulatus, Pai/k, Mon. Staph. Suec. 30 (1789). 

 Xantholinus punctulatus, Erich., Gen. et Spec Staph. .328 (1839). 



, WolL, Ins. Mad. 577 (18.54). 



, Id., Cat. Mad. Col. 188 (1857). 



Habitat in Lanzarota, TenerifFa et Gomera, passim. 



The common European X. punctulatus (which is tolerably abun- 

 dant at Madeira) may be known by its black hue (the elytra, how- 

 ever, having usually a just perceptible aenescent tinge) ; by its head 

 being very coarsely and rugosely punctured on either side, and very 

 straightly truncated along its basal edge ; by its prothorax having 

 the dorsal series composed of comparatively few punctures, and the 

 lateral ones very evidently curved ; by the punctures of its elytra 

 having a decided tendency to arrange themselves in longitudinal rows ; 

 and by its antennae being rather short. It appears to be somewhat 

 scarce at the Canaries. I have taken it at La Esperanza in Tene- 

 riffe ; and it was found by Mr. Gray in Lanzarote, and by Dr. Crotch 

 in both Teneriffe and Gomera. 



The Canarian examples of the X. punctidatus seem to belong to 

 the slightly larger state referred to by Erichson — in which the 

 colour is deep black with (at any rate on the elytra) an appreciable 

 aenescent tinge, the limbs a little darkened, and the punctures of the 

 prothoracic dorsal series rather reduced in number. The eyes, also, 

 appear to be less minute than in the ordinary type, and the forehead 

 somewhat freer from punctures. But I imagine they can scarcely 

 be indicative of an additional (closely allied) species. 



Genus 322. LEPTACINUS. 

 Erichson, Kiif. der Mark Brand, i. 429 (1837). 



884. Leptacinus parumpunctatus. 



L. nitidissimus, niger, elytris (extus seriatim punctatis) paulo dilu- 

 tioribus necnon ad angulos singulos externos pellucido-testaceis ; 



2p2 



