490 CANAHIAN COLEOPXERA. 



short distauee behind the sea-beach. In such situations it is not un- 

 common to the south of Arreeife in the former, and of Puerto de 

 Cabras in the latter (where it was likewise found by Mr. Gray) ; and 

 1 also met with it on the little island of Graciosa, off the extreme 

 north of Lanzarote. 



Genus 273. HALONOMUS. 



WoUaston, Ann. Nat. Hist. vii. 201 (1801). 



734. Halonomus salinicola. 



H. fusco-piceus (fere niger), subopaeus, setulis brevibus demissis ciae- 

 reis irroratus ; capite prothoraceque in limbo, antennis pedibusque 

 rufescentioribus ; geiiis ante oculos rotundatis, vix exstantibus ; 

 prothorace punctate, ad latera explanato et parum rotundato ; ely- 

 tris profunde et argute crenato-striatis, interstitiis minutissime et 

 parce pimctulatis. 



Var. /3. Subopacior, prothorace vix angustiore et vix densius punc- 

 tate. l^Ins. Canaria Grandis.] — Long. corp. lin. 2^vix 3. 



Halonomus .salinicola, WolL, loc. cit. 203 (1861). 



Habitat sub lapidibus in salinis Lanzarotaj et Canariae (praesertim 

 illius), valde grcgarius. Species H. ovato (Dej.), Erich., nimis affinis 

 et forsan ejus varietas geographica ; sed genis mox ante oculos paulo 

 minus exstantibus et minus subreciirvis necnon per marginem latera- 

 lem obliquum rcetioribus (sensim minus sinuatis), prothorace ad la- 

 tera vix magis rotundato, elytris sensim minus rugulosis ae multo 

 profundius argutiusque crenato-striatis. 



This insect is very closely allied to the Heterophaga ovata * of De- 

 jean's Catalogue (^ = Opatrum ovatum, Erich., and Halonomus Orayii, 

 Woll.), of which perhaps it may be only a geographical state. It 

 appears to differ merely in having its gente a little less prominent 

 (or more obtuse), and also a little less recurved, in front of either eye, 

 as well as a trifle straighter (or less sinuated) along their oblique 

 lateral edge; in its pro thorax being, perhaps, just perceptibly more 

 rounded at the sides ; and in its elytra being less evidently rugulose, 

 and much more deeply, and sharply, crenate-striated. It was taken 

 abundantly by Mr. Gray and myself, during January 1858, from be- 

 neath stones at the edges of the Salinas, and around the salt-works, 



* This insect, which is recorded by Dejean from Senegal, occurs also in the 

 south of Europe — a Sicilian example having been communicated to me by M. 

 Deyrolle. It is found likewise at the Cape de Verdes, and was first descriljed by 

 Erichson, evidently from examples obtained from those islands \_vide supra, p. 465, 

 nofe^ in his paper on (supposed) " Angolan " C'oleoptera. I was unaware of 

 this circumstance, in my enumeration of the Coleoptera of St. Vincent (in the 

 ' Ann. of Nat. Hist.' in 1861), and so re-enunciated the species under the trivial 

 name of Grayii. 



