378 CANARIAN COLEOPTEEA. 



The European S. humeralis, which is scattered sparingly over the 

 Madeiran Group, is universal, though by no means common, at the 

 Canaries — in the whole seven islands of which I have myself cap- 

 tured it. In Palma it was likewise found by Mr. Gray, and from 

 Teneriffe it has been communicated by Dr. Crotch and the Barao do 

 Castello de Paiva. It occurs more particularly in diy, calcareous 

 spots. 



577. Sitones setiger. 

 /S. oblongus, niger, squamis griseis inaequaliter vestitus ; capite pro- 

 thoraceque densissime et profunde rugoso-punctatis, illo oculis ob- 

 longo-rotundatis prominentibus, hoc subcylindrico, intra apicem 

 (subelevatum) constricto, ad utrumque latus linea paulo albidiore 

 omato ; elytris profunde pmictato-striatis, vel obscure variegatis 

 (interstitiis alternis obsolete tessellatis) vel dense fusco aut ochra- 

 ceo-fusco squamosis, saepius versus latera squamis albidioribus ob- 

 scure plagiatis, interstitiis setosis (setis nigrescentibus sed in inter- 

 stitiis alternis setis albidioribus clistantibus commixtis); antennis 

 (brevibus) pedibusque rufo-fcrrugineis, capitulo fcmoribusque ob- 

 scurioribus. — Long. corj). lin. l|-2, 



Sitones setiger, WolL, Aim. Nat Hist. xi. 221 (18G3). 



Habitat in aridis insularum Canariensium, in Palma sola hactenus 

 hand detectus. 



Judging from the diagnosis, this little Sitones is probably allied to 

 the S. seriesetosus, Schon., from Egypt. Unless, however, the pub- 

 lished description of that insect is so inaccurate as to be absolutely 

 worthless, the two species cannot possibly be identical ; for the pro- 

 thorax of the seriesetosus is said to be remotely and lightly punctured, 

 and with two approximated paler lines down its disc, whereas that 

 of the setiger is most densely and coarsely so, with the longitudinal 

 lines extremely wide apart (being in fact completely lateral); then, 

 its elytra are described as " tenuissime punctato-striata " and with 

 the interstices alutaceous, whereas in the Canarian insect they are 

 deeply punctate-striated, and the interstices (which are shining) have 

 not the slightest tendency to be alutaceous ; and, lastly, the eyes of 

 the Egyptian species are stated to be round, whereas (although a Httle 

 variable in outline) they are never quite round in the setiger, being 

 more frequently oblong. 



There can be little doubt that the S. setiger is universal throughout 

 the archipelago, though it does not happen to have been observed in 

 Palma ; but in Lanzarote, Fuerteventura, Grand Canary, Teneriffe, 

 and Hierro I have taken it, more or less abundantly ; and in Gomera 

 it was captured by Dr. Crotch (who also met with it in Grand Canary 

 and Teneriffe). In Lanzarote, Fuerteventura, and Teneriffe it was 



