CANARIAN COLEOPTERA. 491 



in the north of Lanzarote — a locality in which I again met with it 

 in March of the following year ; and I also captured a single speci- 

 men at Maspalomas, the extreme southern point of Grand Canary. 



Genus 274. MELANSIS (nov. gen.). 

 Genus Phylad proximum, sed tlhiis onmihus mascuUs (praesertim pos- 

 terioribus) per marginem internum versus apicem minutissime sed 

 argute serratis, tibiis anticis in utroque sexu angustioribus (nee 

 dUatatis) et snhS.ex\iosis, j^osteriorlhus in maribus subflexuosis sed 

 in foeminis rectis ; sculpturd omnino fortiore, rugosiore ; elijtris 

 alte et argute costatis, nullo modo (nee longitudinaliter nee etiam 

 in interstitiis) punctatis. 

 A fxeXavcris (fxeXaivu), denigro). 



In their general j^rimd facie aspect and structure the two insects 

 described below might be referred to Phylax; nevertheless the curious 

 formation of their male tibiae, which are minutely serrated along the 

 apical half of their inner edge (as in Xenoscelis, of the Cucujidxe), 

 combined with other features of secondary importance — such as the 

 narrower (or undilated) front tibioB of both sexes, their more roughly 

 and coarsely sculptured surface, and their longitudinally costate elytra 

 (which are totally free from any appearance of panctation) — give 

 them a character essentially their own. But in the shape of their 

 prothorax, and the dentiform humeral angles of their elytra, they 

 agree with Phi/lax. 



§ I. Antemiw lorujiores, artf 3*'° valde elongato. 



735, Melansis costata. 



M. oblonga, atra, opaca ; capite prothoraceque densissime et profundc 

 rugoso-punctatis (punctis subconfluentibus), hoc transverso, ad la- 

 tera explanato rotundato, angidis anticis acutiuscidis porrectis, 

 posticis minute subprominuhs ; elytris subparallelis, angulis hu- 

 meralibus minute exstantibus, singulis costis 7 valde elevatis ar- 

 gute instructis, interstitiis subtilissime densissimeque granulatis 

 et granulis paulo majoribus obscuris obsolete et parce irroratis ; an- 

 tennis pedibusque picescentioribus. — Long. corp. lin. 2|-3|-. 



Phylax costatus, BrulU, in Webb et Berth. (Col) 69 (1838). 



Habitat in montibus Canariae Grandis, in regione " Tarajana " capta. 



The parallel, oblong outline, deep-black hue, and opake surface of 

 this insect, combined with its coarsely and densely sculp tiu-ed head, 

 and prothorax, and the seven sharp and greatly raised costae with 

 which each of its elytra is furnished (the interstices being most closely 

 and minutely granulated), will sufficiently distinguish it. It appears 

 to be extremely local, and confined (so far as I have observed hitherto) 



