CANARIAN COLEOPTERA, 67 



brine-pits, in the extreme north of the island, it is abundant, — where 

 it may be seen darting in and out of the crevices formed by the heat 

 of the sun. In such positions it was taken by Mr. Gray and myself, 

 during- January 1858 ; and in the spring of the following year I 

 again met with it in the same locality. 



102. Tachys centromaculatus, n, sp. 

 T. niger ; elytris pallida testaceis, in disco communi postico macula 

 mag-na nigrescente (ad utrumque latus abbreviata sed antice per 

 suturam plus minus anguste producta) ornatis, versus suturam sat 

 distincte striatis ; oculis valde promincntibus ; prothornee trans- 

 verso, latiusculo, postice paulo angustioi'o, ad angulos posticos late 

 subrecurvo ; antennis, palpis pedibusque paUide testaceis. — Long, 

 corp. Kn. 1-1 1. 



Habitat in salinis Lanzarotse, per margines lacus ejus salini " Ja- 

 nuvio " dicti a meipso deprehensus. 



For some time I had regarded this Tachys as a large and peculiar 

 state of the T. scuteUaris ; but having been informed by my friend 

 Dr. Sehaum that he believes it to be truly distinct, I have re-examined 

 it more critically and have arrived at the same conclusion. It differs 

 from the scuteUaris in its rather larger size and somewhat broader 

 outline ; in its eyes being both larger and very much more promi- 

 nent ; in its prothorax being not only wider but also more broadly 

 and evidently recurved at the basal angles ; in its (pale-testaceous) 

 elytra being almost free from a triangular scutellary cloud, and with 

 the suffused postmedial fascia which characterizes its ally abbrevi- 

 ated on either side and reduced to a large well-defined patch, rounded 

 behind and truncated in front (where, however, it is narrowly pro- 

 duced along the anterior portion of the siiture) ; and by its antennaj, 

 palpi, and legs being a trifle longer and of a uniformly pallid hue. 



Like the T. scuteUaris, the present species occurs in brackish places 

 in Lanzarote ; but whilst that insect has been observed hitherto only 

 at the Salinas in the extreme north of that island, the centromaculatus 

 I have not yet met with except along the edges of the curious salt 

 lake of Januvio, adjoining the south-western coast, — where, on the 

 26th of March 1859, I detected it, not uncommonly, during a visit, 

 in company with the Rev. R. T. Lowe, to that remote spot. 



103. Tachys curvimaniis. 



Bembidium curvimanum, Wall., Ins. Mad. 74. tab. ii. f. 6 (1854). 

 , Id., Cat. Mad. Col. 22 (1857). 



Habitat insulas Canarienses, in Hierro sola adhuc hand detectus ; 



f2 



