INSECTA MADERENSIA. 299 



226. Leiparthnun Artemisise, WoU. 

 Im. subangusto-cylindricum nigrum et pilis rigidis vestitum, prothorace minus amplo, baud tuberculato, 



elytris rugulosis obscure striato-punctatis, antennarum basi pedibusque diluto-testaceis. 

 Long. corp. lin. ^-f . 



Habitat in ins. Deserts Borealis, qua'Junio ineunte a.d. 1850 plurima specimina ex Artemisia argented, 

 Herit., collegi. 



L. of mucb the same form as tbe L. bituberculatum, but ratber smaller in size, of a uniform dull black 

 bue, and witb tbe same character of pubescence as that insect. Prothorax ratber smaller, a little 

 less obtuse in front, and without any indication (apparently) of tbe tubercles which are more or less 

 evident in tbe other members of the genus. Elytra rounded and entire at their extremity, but 

 with tbe punctures rather more defined (and distinctly smaller) than in either of the previous two 

 species. Antenna at base and the tarsi pale testaceous; the club of the former, and the /mora 

 and tibim, being more or less dusky. 



A most distinct little species, being intermediate in length between tbe L. bitn- 

 herculatmn and ciirtim,—jet at once separated from tbem both by its uniformly 

 dark hue (its tarsi and tbe base of its antennae being alone pale), by its narrower 

 form, and by tbe absence (apparently) of any indication of tubercles on its (some- 

 what smaller) prothorax. It appears to be peculiar to the Northern Dezerta, 

 Avhere I detected it, whilst encamped there with the Rev. R. T. Lowe, at the 

 beginning of June 1850. It seemed to be more particularly attached to the thick 

 masses of wormwood {Artemisia argentea, Herit.) with which that singular island 

 is in certain positions densely clothed, and from off which the greater number of 

 my specimens were taken, — those which did not occur on that plant having been 

 either attracted to the white canvass of my tent, dtu'ing the hot sunshine, or else 

 captured on the wing. 



Fam. 33. HYLESINID^. 



Genus 104. PHLCEOPHTHORUS, Wall. (Tab. YI. fig. l.) 



Corpus parvum, subcylindricum : capite leviter producto : prothorace amplo convexo, antice minus 

 producto et baud scabroso : elytris apice rotundatis integris : alis amplis. Antenna (YI. 1 a) 

 longiusculffi clavatse; scapo elongate subclavato, basi flexuoso; funiculo 5-articulato, articulo 

 primo robusto apice truncato ad basin constricto sinuato, reliquis brevissimis longitudine sub- 

 ffiqualibus, a basi angusta latitudine paulatim crescentibus ; clava elongata laxa valde perfohata 

 triarticulata, articulis longitudine subaequalibus (primo et secundo latioribus, illo leviter, hoc vix 

 intus-producto, iiltimo subacuminato-ovato). iairam obsoletum. Mandibula {YI. 1 b) cornese 

 validffi, basi latse, apicem versus parum angustse acutse, infra apicem dente minutissimo obscurissimo 

 instruct-e. Maxilla (VI. 1 e) lobo singulo lato brevissimo setoso instructae {interna obsolete) . 

 Palpi subsetoso-conici ; maxillares minuti, articulis primo, secundo et tertio brevissimis trans- 

 versis, ultimo longiore graciliore subcylindrico-conico ; labiates (YI. 1 d) longiores, articulo 



2q2 



