418 



CANARIAN COLEOPTERA. 



haps nearer in size and sculpture to the D. occultans than to any of 

 the remainder. It is, however, a little larger and more oblong than 

 that insect, its colour (instead of being cyaneous) is of an obscm-e 

 brassy-black, and its four anterior legs and two hinder tibi?e and 

 feet are bright rufo-testaceous. 



Genus 245. CH.ffi:TOCNEMA. 



Stephens, III. Brit. E)d. iv. 325 (1831). 



643. Chaetocnema tarsalis. 



Chastocnema tarsalis, Woll., loc. cit. 11 (18G0). 



Plectroscelis tarsalis, AUard, Ann. de la Sac. Ent. de France, 337 (1860). 



Habitat Canariam Grandem, in graminosis ad Argiiiniguin, per niar- 

 ginem paludis ejus juxta mare sitae, Aprili a.d. 1858, reperta. 



The prima facie aspect of this ClKxtocnema is almost identical with 

 that of the common European C. aridella, except that it is a little 

 more aeneous and shining, with its prothorax somewhat more trun- 

 cated (or less produced) behind, and with the intermediate joints of 

 its antennaj rather slenderer ; and it was not until I had closely over- 

 hauled it that I detected a structural character which will at once 

 separate it from its more northern ally. This consists in the forma- 

 tion of its tarsi, which are very much narrower and more elongated 

 than those of the aridella, ■\\dth their apical joint particularly (as com- 

 pared with the corresponding one in that species) long and slender. 

 The penultimate one, also, is less dilated than is there the case, and 

 the whole foot has a different appearance. It was detected by my- 

 self, on the 14th of April 1858, at Arguiniguin, in the south of Grand 

 Canary, where I obtained several specimens by brushing the short 

 grass at the edges of the small freshwater lake immediately behind 

 the sea-beach. 



Fam. 66. HISPID.ffi, 



Genus 246. HISPA. 

 Linnaeus, Syst. Nat. (1766). 



644. Hispa occator. 



H. species H. tesfacea? simillima, sed paulo major, elytris ad apiccm 

 minus truncato-decurvis, et alitor colorata. Supra pallidior, tes- 

 tacea (nee rufo-ferruginea) pilisque longioribus demissis magis au- 

 reis vestita, prothorace postice, scutello, sutura tarsisque, necnon 

 infra (in mcso- et meta-sternis abdomineque) plus minus nigres- 

 centibus (nee concoloribus) ; elytrorum spinis e nodulis submajori- 

 bus ac latins nigris singulatim surgentibus. — Long. corp. lin. 2-3. 



Hispa occator, BrulU, in Webb et Berth. (Col.) 73. pi. i. f. 17(1838). 



