28 



CANARIAN COLEOPTERA. 



European P. chalceus, but with its prothorax a little broader anteriorly 

 and more coarsely punctured at the base, and with its elytra rather 

 more parallel at the sides and much more deeply punctate-striate. 

 Its limbs, too, are just perceptibly longer and more robust. I have 

 hitherto observed it only in salt places in Lanzarote, — namely, at the 

 Salinas (or salt-pans) in the extreme north (where it was also cap- 

 tured by Mr. Gray), and along the edges of the curious sea-water lake 

 known as '' Januvio," towards the south-west of the island. In the 

 former of these localities the specimens are, on the average, rather 

 larger and of a less metallic green than those from the latter, and 

 with their limbs of a slightly duller hue ; but they present no other 

 differences, that I can detect. 



44. Pogonus Grayii. 



P. angustus, paUidus ; capita prothoraceque rufo-testaceis, hoc elon- 

 gato postiee paulo angustiore, ad basin punctato ; elytris testaceis, 

 parallolo-oblongis, subpunctato-striatis ; antennis rufo-testaceis ; 

 pedibus testaceis. — Long. corp. lin. lf-2, 



Pogonus Grayii, JFolL, Ann. Nat. Hist. (Srd series) ix. 4-38 (1862). 

 Habitat Lanzarotam, in iisdem locis ac prsecedens sed multo rarior. 

 Species a Dom". Gray ad " Salinas," mense Januario a.d. 1858, 

 primo detecta, cujus in honorem nomen triviale proposui. 



The small size, extremely narrow outline, and pallid hue of this 

 interesting little Pogonus, in conjunction with its elongate prothorax 

 and very parallel elytra, will (apart from less important characters) 

 at once distinguish it. It is much the colour of the P. testaceus 

 of Mediterranean latitudes, though in shape more resembling the 

 JiUformis from Sardinia. It was first detected by John Gray, Esq., 

 who captured a single specimen at the Salinas, in the extreme north 

 of Lanzarote, during our visit there in January 1858 ; and it was 

 not until the following year that I succeeded (on the 26th of March) 

 in finding it myself, — when I obtained a considerable number along 

 the edges of the salt lake of Janu\'io, towards the south-west of the 

 island. I have great pleasure in naming it after its discoverer, to 

 whose extensive material and accurate observations I am indebted 

 for so much valuable assistance in compiling the present volume. 



Genus 19. SPHODRUS. 



Clairville, Ent. Helv. ii. 86 (1806). 



