CANARIAN CULEOPTERA, 329 



and at El Charco — in the south-west and the extreme south, re- 

 spectively, of Grand Canary) are, I think, referable to the common C. 

 tamarisci of Mediterranean latitudes, though they are certainly of a 

 darker, or more cinereous-coppery, hue than the bright metallic- 

 green types now before me, from Italy and the south of France. In 

 spite, however, of their obscurer colour, I believe that they cannot be 

 identified with the C. re^andus — which is a darker insect still, with 

 its rostrum nearly black, and with its prothorax almost always con- 

 spicuously tnlineated (the central line particularly being weU defined 

 by a blackish portion on either side of it). 



(Subfam. MOLYTIDES.) 



Genus 207. PLINTHUS. 

 Germar, Ins. Spec. 327 (1824). 



518. Plinthus musicus. 



Pliuthus musicus, Wull, Ann. Nat. Hist. vi. 18 (1860). 



Habitat in humidis sylvaticis Teneriffae, hinc inde hand infrequens. 



This superb Plinthus, a full description of which I published in the 

 ' Ann. of Nat. Hist.' for July 1860 (where also is added a notice of 

 its stridulating capabilities, and of the anal apparatus by the vibra- 

 tion of which the noise is genei'ated), appears to be peculiar to the 

 intermediate and lofty altitudes of Teneriife, occurring more parti- 

 cularly in the damp laurel- woods from about 2000 to 3000 feet above 

 the sea. In such situations I have taken it at the Agua Garcia, at 

 Las Mercedes, on the sylvan mountains above Taganana, near Ycod 

 el Alto, at the Agua Mansa, and even (in the " Retama "-district) 

 on the elevated Ciunbre above it. The species may be known by its 

 large size and dark -brown surface, which (in fresh and unrubbed ex- 

 amples) is more or less ornamented with paler scales at the sides of 

 its prothorax, as well as about the humeral region and apex of its 

 elytra — which last have likewise a small patch on the fore disc of 

 each, and a much broken postmedial fascia. 



519. Plinthus velutinus. 



Plinthus velutinus, Woll, Ann. Nat. Hist. vi. 19 (1860). 



Habitat in montibus excelsis Teneriffae, usque ad8000's.m. ascendens. 



Like the P. musicus, the present species seems to be confined to 

 Teneriff'e, though to a higher altitude than that insect. Indeed most 

 (if not aU) of the few examples of it which I have yet seen were cap- 

 tured on the two lofty Cumbres — above the Agua Mansa, and adjoin- 



