458 Mn. r. p. pasooe on tue curoulionid^:. 



truncatus, basi leviter rotundatus, lobis ocularibus latis, hand 

 prominulis. Scutellum nullum. Elytra parum convexa, ob- 

 ovata, basi emarginata, huraeris rotundata. Pedes sat robusti ; 

 femora in medio incrassata ; tibics recta), antiese intus denticulata), 

 posticae paulo longiorea, corbiilis apertis; tarsi modice dila- 

 tati, art. ultimo uniunguiculato. Metasternum breve. Abdo- 

 men segmentis 3-4 brevioribus, sutura prima arcuata. 

 The one-clawed tarsi is tlie most trenchant character of this 

 genus, which in habit closely resembles Polyphrades. The second 

 species has a shorter rostrum, more rounded above, and gradu- 

 ally narrower towards the apex. 



EssoLiTHNA PLUVIATA. (PI. XVIII. fig. 7-) E. clliptica, nigra, 

 supia dense cervino-squamulosa, squamulis albis irrorata ; rostro 

 supra medio canalieulato, apice ciliato ; aiitennis sat dense squa- 

 mosis ; prothorace vittis tribus indeterrainatis fuscis, subtihter albo- 

 maculato ; elytris fortiter inmctato-striatis, interstitiis convexis, basi, 

 ])ra;eipue, striisque albo-macuktis ; infra pedibusque dense albo- 

 squamulosis. Long. 4 lin. 



llab. Western Australia (Nicol Bay). 



EssOLlTiiNA RHOMUUS. H. subtrapcziformis, nigra, supra squamulis 

 griseis albidis mixtis ; rostro brevi, lateribus apicem versus sensim 

 angustioribus ; capitis fronte valde convexa ; ocuhs lateralibus ; pro- 

 thorace manifeste impunctato, vittis tribus indeterminatis fiiscis ; 

 elytris elongato-rotundutis, pone basin latioribns, deinde ad apieeni 

 gradatim angustioribus, apicibus rotundatis, striato-punctatis, punctis 

 sat remotis, elongatis, interstitiis vix elevatis ; infra subargenteo-squa- 

 mosa ; pedibus griseo-squamosis. Long. 2j lin. 



Hah. "Western Austraha (Champion Bay). 



Platytrachelus chloris. p. squamulis Itete virescentibus dense 

 vestitus, setulis arcuatis rainutis stramineis interjectis ; antennis 

 testaceis, griseo-pilosis ; capite inter oculos leviter transversim exca- 

 vate ; prothorace transverse, utrinque leviter rotundato, lobo mediano 

 rotundato, lobis ocularibus productis ; scutello inconspicuo ; elytris 

 ovatis, striatis, interstitiis planatis ; infra viridi-squamulosus ; pedibus 

 testaceis, griseo pilosis. Long. 2| lin., rostr. inch 

 Hub. Western Australia. 



This interesting species differs slightly from the characters of 

 Flatytraclielus, as laid down by M. Lacordaire, in not having 

 the groove around the eye, in the median lobe of the protliorax 

 being rounded, not acuminate, and in the mutic femora. The 

 first joint of the funicle is not much larger than the second, 

 remainder aie nearly equal. 



