374 HALTICID^E. 



As widely diffused as the last species over these Atlantic Groups, 

 where we may be equally certain that it is universal. Moreover 

 there can be no doubt that it is truly indigenous ; for it occurs in 

 the most remote districts of intermediate and lofty elevations, and 

 comparatively seldom within the regions that are cultivated. It has 

 been taken in all the Madeiran islands except the northern and 

 southern Desertas (where, however, we may be pretty sure that it 

 exists), as well as in the whole seven of the Canarian archipelago. 



1026. Psylliodes tarsata. 



Psylliodes tarsata, Woll, Ins. Mad. 452, tab. ix. f. 5 (1854). 



9 Id., Cat. Mad. Col 135 (1857). 



, All., Ann. de la Soc. Ent. de France, 339 (1861). 



Habitat Maderenses (Mad.), in sylvaticis humidis intermediis degens. 



Peculiar apparently to the damp sylvan regions of Madeira proper, 

 at intermediate and rather lofty altitudes, occurring principally in 

 the north of the island. 



Genus 312. DIBOLIA. 

 Latreille, Regne Anim. v. 139 (1829). 



1027. Dibolia obtusa. 

 Dibolia obtusa, Woll., Cat. Can. Col. 417 (1864). 

 Habitat Canarienses (Fuert.), rarissima ; semel tantum reperta. 



Hitherto I have seen but a single example of this Dibolia, which 

 was captured by myself in Puerteventura of the Canarian Group. 



Genus 313. CHJETOCNEMA. 



Stephens, El. Brit. Ent. iv. 325 (1831). 



1028. Chaetocnexna tarsalis. 



ChaBtocnema tarsalis, Woll., Journ. of Ent. i. 11 (1860). 

 Plectroscelis tarsalis, All., Ann. de la Soc. Ent. de France, 337 (1861). 

 Chsetocnema tarsalis, Woll., Cat. Can. Col. 418 (1864). 



Habitat Canarienses (Can.), in graminosis humidis inferioribus 

 detecta. 



The few examples hitherto detected of this Chcetocnema I cap- 

 tured at Arguiniguin, in the south of Grand Canary, by brushing 

 the short grass along the margins of the freshwater lake immedi- 

 ately behind the sea-beach. 



