502 



STAPHYLINID.E. 



gradually rufescent behind), as well as rather more thickly punc- 

 tured with the punctures not only a trifle more closely packed 

 together (and therefore less evidently arranged in longitudinal rows), 

 but likewise nearly as deep on the posterior part as in front *. 



Genus 408. DOLICAON, 

 Laporte, Mud. Ent. \. 119 (1834). 



1385. Dolicaon nigricollis. 



Dolicaon nigricollis, Wott., Trans. Ent. Soc. Land. i. 188 (1862). 

 } Id., Cat. Can. Col. 584 (1864). 



Habitat Canarienses (Lanz., Can.), vel sub lapidibus vel in Euphorbiis 

 emortuis occurrens. 



Found in Lanzarote and Grand Canary, where it occurs sparingly 

 (at intermediate altitudes) both under stones and within the rotten 

 Euphorbias. Judging from the published diagnosis, it seems closely 

 allied to the European D. illyricus of which perhaps it may prove 

 to be but a geographical state. Even if distinct, however, it does 

 not appear to be peculiar to the islands ; for I have inspected ex- 

 amples taken by the Rev. Hamlet Clark, at Medeah, in Algeria, 

 which differ so very slightly from the Canarian ones (being merely 

 a trifle more pubescent and strongly punctured) that I cannot regard 

 them as representing more than an unimportant geographical phasis 

 of the same species. 



1386. Dolicaon ruficollis. 



Dolicaon ruficollis, Wott., Trans. Ent. Soc. Lond. i. 189 (1862). 

 , Id., Cat. Can. Col. 584 (1864). 



Habitat Canarienses (Fuert.), in locis similibus ac praecedens. 



Whether this be more than a permanent insular modification of 

 the last species I will not venture to decide ; but it unquestionably 

 has much in common with it occurring however (so far at least as 

 observed hitherto) in Fuerteventura, and on the adjacent rock of 

 Lobos, instead of in Lanzarote and Grand Canary. It appears to 

 differ from the nigricollis merely in colour ; nevertheless as I have 

 seen nothing like an intermediate link between the two, I imagine 



* I will just however indicate this Canarian Lathrobium as follows, in the 

 event of its proving ultimately to be specifically distinct : 



Var. j3. canariensis [an species?]. Capite elytrisque vix submajoribus, his 

 saepius concoloribus subdensius punctatis, punctis paulo minus evidenter seriatim 

 dispositis et inter se subaequalibus (nee postice conspicue levioribus). 



