592 CANARIAN COLEOPTERA. 



miiiore, pone oculos (submajore) paulo magis rotundato ; anten- 

 nis pedibusque minus elong-atis. — Long, corp. lin. vix 2, 



Habitat Teneriffam et Gomeram, a W. D. Crotch repertus. 



The only three examples which I have seen of this species were 

 taken by Dr. Crotch — two of them in Teneriife, and the remaining one 

 in Gomera. It seems to be quite distinct both from the megacejthalus 

 and dimidiatus, being a little smaller than even the latter, and alto- 

 gether paler than both of them — the fifth abdominal segment being 

 the only portion of its sm^face which is black. It is also a trifle less 

 opake, and not quite so roughly sculptured ; its head is less developed, 

 and more suddenly rounded behind the eyes (which are themselves a 

 trifle larger), and its limbs are appreciably shorter. 



(Subfam. VII. STEMDES.) 



Genus 331. STENUS. 



Latreille, Precis cles Caract. Gen. des Lis. 77 (1796). 



§ I. Corpus alatum : abdomen marginatum : tarsi articulo 

 quarto simplici. 



90S. Stenus guttula. 



Steuus guttula, Midi., in Germ. Maq. iv. 225 (1821). 



, Erich., Gen. et Spec. Staph. 691 (1839). 



, Wall, Ins. Mad. 597 (1854). 



, Id., Cat. 3Iad. Col. 196 (1857). 



Habitat in aquosis Canariae, Teneriflae et Palmoe, rarissimus. 



The European S. guttula, which abounds in the Madeiran Group, 

 is apparently rare in these islands — the very few examples which I 

 have seen having been taken by myself in Grand Canary, Teneriffe, 

 and Palma. My Grand-Canarian specimen was captured on the 

 ascent to the Pinal above San Bartolome (in the central district of 

 Tarajana), and the Palman ones are from the Barranco de Galga. 



§11. Corpus apterum : abdomen marginatum : tarsi articulo 

 quarto biJobo (sed tamen angusto). 



909. Stenus aeneotinctus, n. sp. 

 /S'. niger vel piceo-niger, conspicue ceneo-tinctus, subnitidus, parce 

 griseo-pubescens ; capite, prothorace elytrisque (bre\'issimis) paulo 

 infequalibus, valde profunde, dense et rugose punctatis ; abdomine 

 minus profunde (sed tamen grosse) punctato ; an tennis longiusculis, 

 graciliusculis, apice nigrescentibus, versus basin, palpis pedibusque 

 saturate palHdo-testaceis. — Long. corp. lin. If-l!. 



Habitat in Canaria, Teneriffa, Gomera, Palma et Hierro, in inter- 

 raediis humidis sylvaticis, rarissimus. 



