HELOPHORID.E. 73 



219. Helophorus longitarsis. 



Helophorus longitarsis, Woll, Cat. Can. Col. 86 (1864). 

 Habitat Canarienses (Fuert.), rarissimus ; semel tantum repertus. 



Taken by myself in Fuerteventura, of the Canarian Group, where, 

 however, it would seem to be very scarce. My unique specimen was 

 captured in a tank in the Rio Palmas. 



Genus 59. CALOBIUS. 

 Wollaston, Ins. Mad. 92 (1854): 



220. Calobius Heeri. 



Calobius Heeri, Wott., Ins. Mad. 92. tab. ii. f. 7 (1854). 

 , Id., Cat. Mad. Col 30 (1857). 



Habitat Maderenses (Mad., P to S to } et Canarienses (Gom.), in aquis 

 omnino salinis inter Confervas marinas degens ; hinc inde 

 vulgaris. 



Occurs amongst marine Conferva in unadulterated sea-water, 

 chiefly in the still pools left by the tide on the rocks. In such 

 situations it is locally abundant in Madeira proper, and Porto Santo, 

 of the Madeiran Group ; and a single example was taken by Dr. 

 Crotch at Gomera, in the Canaries (adhering to his skin whilst 

 bathing at San Sebastian). 



Genus 60. OCHTHEBIUS. 

 Leach, Zool. Misccll. hi. 91 (1817). 



221. Ochthebius 4-foveolatus. 



Ochthebius 4-foveolatus, Wott., Ins. Mad. 91 (1854). 



, Id,, Cat. Mad. Col. 28 (1857). 



, Id., Cat. Can. Col. 86 (1864). 



Habitat Maderenses (Mad., P to S to ) et Canarienses (Fuert., Can., 

 Ten., Gum., Palma), in rivulis vulgaris. 



"Widely spread over the Madeiran and Canarian Groups, in which 

 it will probably be found to be universal wherever there are streams. 

 It is common in Madeira proper and Porto Santo; as well as in 

 Fuerteventura, Grand Canary, TenerifFe, Gomera, and Palma, of the 

 Canarian archipelago. 



222. Ochthebius pygmaBUs. 



Elophorus pygmseus, Fab., Ent. Syst. i. 205 (1792). 

 Ochthebius pygmeeus, Steph., Ill Brit. Ent. ii. 115 (1829). 



