420 CANARIAN COLEOPTERA. 



Hitherto, however, I have observed it only in Grand Canary (through- 

 out the region of El Monte), TenerifFe (at Souzal and about Oro- 

 tava), Palma (at the Banda), and Hierro. In TenerifFe it vras found 

 also by the late Rev. \Y. J. Armitage, the Barao do CasteUo de Paiva^ 

 and Dr. Crotch ; and in Palma by Dr. Crotch and Mr. Gray. I have 

 once or tvrice met with it rather abundantly amongst the mulberry- 

 leaves, in houses, on which silkworms are fed. 



Fam. 58. EROTYLID^. 



Genus 248. XESTUS (nov. gen.). 

 Corpus sat parvum, elli])ticum, calvum, Throsci formam prima facie 

 simulans: capite exserto: protliorace subconico, apice truncato, basi 

 trisinuato, angulis posticis productis, prostcrno apice truncato, pos- 

 tice inter coxas anticas parallelo et levitcr j^roducto nccnon ad basin 

 paulo emarginato : scutdJo sat magno, transverso-sciitiformi : ah- 

 domine e segmentibus 5 composito. Antennce ll-arf*, robustoe, 

 pariun clavatfe, mox ante oculos sub margine capitis insertae et inter 

 otium sub margine prothoracis (sed hand in foveis) repositse, art'* 

 2mo g^ 2^" brevibus, 3"° longiusculo, 4'° ad 8'"'" latitudine \-ix eres- 

 centibus, reliquis clavam laxam pcrfoliatam baud abruptam 3-arti- 

 culatam efEicientibus (9"" poculiformi, 10'"° magis transverso, ult""' 

 subgloboso). Lahrvm submembranaceum, transversum, apice vix 

 emarginatum, angulis anticis rotundatis ciliatis. Mandibulo' ajjiee 

 valde incurvoe, uncinatae, acutse, infra uncum denticulo armatse, et 

 mox infra hunc valde pubeseentes membranaceae. MaxUlce bilobje, 

 lobis brevibus, pubescentibus : inferno apice ineiirvo, uncinate. 

 Palpi maxiUarcs art" 1"'° olongato subcylindrico, 2'*'' et 3"° bre- 

 vioribus crassioribus subpoculiformibus, ult""" maximo securiformi : 

 labiales art° 1""° flexuoso, 2^" miilto latiore sed vix longiore, ult""* 

 magno subseciiriformi. Mentmn elongato-quadi'atum, apice late 

 sed leviter emarginatum et (nisi fallor) dente medio brevi instruc- 

 tum. Ligula membranacea, subquadrata, apice paulo emarginata, 

 angulis anticis rotundatis ciliatis. Pedes erassi, ad basin leviter 

 distantes : tihiis ad apicem externum oblique truncatis ciliatis, ad 

 internum calcaribus minutis \ix observandis terminatis : tarsis 

 5-art*% subtus longc ciliatis, art'" 1°'°, 2"° et 3"° longitudine sub- 

 fequalibus, 3''° supra, excavato 4""" minutum recipiente, ult'"" lon- 

 giiisculo unguicvlis simjilicibus munito. 

 A Searoi, ealvus. 



The affinities of the curious insect from which the above generic 

 details have been compiled are by no means clear ; nevertheless, after 

 a careful consideration of its several parts, T am induced to think that 

 it has perhaps more in common with the European Avhicoehilus than 

 with any other form with which I am acquainted — its oral organs 

 and feet beinor not verv dissimilar from those which obtain in that 



