510 STAPHYLINID.E. 



1407. Sunius pallidulus. 



Simius pallidulus, Woll, Cat. Can. Col. 591 (1864). 

 Habitat Canarienses (Ten., Gom.), a W. D. Crotch parce captus. 



Hitherto I have seen but three specimens of this Canarian /Sunius. 

 They were captured by Dr. Crotch, during the spring of 1862, in 

 Teneriffe and Gomera. 



1408. Sunius dimidiatus. 

 Sunius dimidiatus, WolL, Cat. Can. Col. 591 (1864). 



Habitat Canarienses (Can., Ten., Gom., Hierro), in inferioribus in- 

 termediisque saepius degens. 



Widely spread over the Canarian archipelago, but with a lower 

 range (on the average) than the following species ; for whilst it 

 occurs equally with the megacephalus in the intermediate districts, 

 it descends likewise to the sea-level. I have taken it in Grand 

 Canary, Teneriffe, Gomera, and Hierro, in the last three of which 

 islands it was found also by the Messrs. Crotch. 



1409. Sunius megacephalus. 



Sunius megacephalus, Wott., Cat. Can. Col. 590 (1864). 



Habitat Canarienses (Ten., Gom., Palma, Hierro), in intermediis 

 editioribusque usque ad 9000' s. m. ascendens. 



Pound at intermediate and lofty elevations in the Canarian Group, 

 where it ascends to about 9000 feet above the sea. I have taken it 

 in Teneriffe and Palma, and it was found by the Messrs. Crotch in 

 Gomera and Hierro. The Gomeran specimens have their elytra a 

 trifle longer than those from the other islands, and perhaps not quite 

 so coarsely punctured ; but there is nothing about them to warrant 

 the suspicion that they represent more than a slight insular phasis 

 of the megacephalus*. 



The S. megacephalus belongs to the same type of form as a Swiss 

 species in my collection which I believe to be the pulchellus of Heer. 

 In colouring and general fades, indeed, it resembles that insect very 

 closely ; but its sculpture is coarser and less dense ; its surface is 

 not quite so opake, or so minutely pubescent ; its head is rather more 

 oblong (or less quadrate), and less straightly truncated at the base ; 



* I will, however, just record this state of the megacephalus in the following 

 short formula : 



Var. /3. gomerensis. Elytris paululum longioribus et vix subtilius punctatis. 



