Mr. T. V. Wollaston on the Coleniytera of St. Helena. 317 



Fain. 11. Elateridie. 



Genus 20. Heteeoderes. 

 Latreille, Ann. de la Soc. Ent. de France, iii. 155 (1834). 



23. Heteroderes puncticolUsy n. sp. 



H. eUiptieo-elongatus, subnitidus, niger pilisque brevibus demissis 

 fuh'is parce vestitus ; capite prothoraceque dense et profunde 

 punctatis punctulisque minutissimis intermcdiis irroratis, hoc 

 magno, convexo, in medio coleopteris latiore, angulis posticis 

 valde productis acutissimis et carinulis binis instructis, in disco 

 postico obsolete canaliculato, basi transversim declivo sed in 

 media parte ipsissima (pone scutellnm) elevate; elytris grosse 

 arguteque crenato-striatis, in interstitiis punctato-rugulosis ; 

 antennis, palpis pedibusque rufo-ferrugineis ; tarsonim art" 3''** 

 siibtus late bilobo. 



Long. Corp. lin. 4^. 



I am informed by Mr. Janson that the two examples from 

 which the above diagnosis has been compiled, and which 

 Mr. Melliss captured at St. Helena, are well distinguished by 

 the very deep and close punctation of their head and (largely 

 developed) prothorax from all the species of Heteroderes with 

 which he is acquainted. Amongst other characters, the species 

 may be recognized by the much enlarged lobe, or lacinia, with 

 which the underside of its third tarsal joint is furnished, by its 

 almost black surface, which is sparingly clothed with a short 

 decumbent fulvescent pile, and by its rufo-fenniginous limbs. 

 It is a somewhat remarkable fact geographically that the only 

 Elaterid hitherto observed at 8t. Helena should be a member 

 of the genus which occurs also, in a single representative, at 

 the Azores and Cape Verdes ; whilst the equally rare Madeiran 

 and Canarian exponents of that large department of the Coleo- 

 ptera belong to a totally different group. 



Fam. 12. Clerida. 



Genus 21. Corynetes. 



Herbst, Kaf. iv. 148 (1791). 



24, Corynetes ruji2)e^'*', 



Anobium rii/ipes, Thunb., Nov. lus. Spec. i. 10 (1781). 

 Con/netes riifipes, Well., Col. Atl. 209 (18G5). 

 '■ , Id., Col. Hesp. 102 (1807). 



The common European C. rufpes, as at Ascension and in 

 the Canarian and Cape -Verde archipelagos, appears (judging 



