24) THALLIS. 



in front and at tlie sides coarsely, punctate ; head grooved beneath, 

 coarsely punctate; antennas, with the 3rd joint slightly longer 

 than the 4 th. 



Thallis? Erichsoni, sp. n. 



Nigra, subelongata, aureo-puhescens, capite thorace subrugose 

 punctatis scutello rugoso ; elytris })unctato-striatis interstitiis 

 seriatim punctatis, nigris, fascia basali (macula scutellari inclu- 

 dcnte), altera pone medium, alteraque su])a})icali interru^jtis, rutis; 

 corpore subtus profunde punctato. L. 2 J lin, 



Sydney (Chapuis). 



Rather intermediate between the typical ThaUis and T. insueta. 

 The scutellar stria is present, the 3rd joint of the antennae sub- 

 elongate, the mentum normal. Abdomen punctulate, pubescent, 

 coxal line obsolete ; metasternum punctulate, sides deeply punc- 

 tate, canaliculate, depressed behind in the middle ; mesosternum 

 depressed for the prosternum which is narrow, and pointed behind, 

 the anterior part is rugosely punctate; head with a transverse 

 furrow, coarsely })unctate all over. 



Thallis? Wallacii, sp. n. 



Oblonga, rufo-testacea, nitida, glabo?rrima, capite postice obscu- 

 riore, cum thorace parce punctato, hoc lateribus crasse, basi te- 

 nuiter marginatis, ante scutellum lobato ; scutello Isevi ; elytris 

 punct^o-striatis, interstitiis parcissime punctulatis, flavo-testaceis, 

 basi* vage nigropicea, ftxscia pone medium lata, apiceque nigris 

 (apice ipso vage rufo) ; subtus testacea, abdomine subtiliter punc- 

 tato, medio fere Isevi, pubescente, segmento 1° linea abbreviata 

 coxali, metasterno subl?evi, prosterno punctis paucis profunde 

 impressis, processu quadrato, iu medio acuminate -producto. 

 L. n lin. 



Aru Isl (Wallace). 



Antennas with the 3rd joint short, eyes very coarsely granu- 

 lated, mesosternum depressed, short, so that the prosternum reaches 

 the metasternum. 



Thallis polita. 



Engh po/ifa, White, Zool. Ereh. and Terr. Ins. 18. 



Oblonga, nigro-sub?enea, antennis pedibusque ferrugineis; capite 

 thoraceque f(»rtius punctato, hoc lateribus subtiliter marginatis, 

 basi im})resso, tenuiter marginato, ante scutellum late lobato ; 

 elytris tenuissime setosis, subtiliter seriato-])unctatis, interstitiis 

 punctulatis, circa scutellum ccmfuse punctatis; al)domine subtus 

 ]iul)('SC(',nte, vix punctulato, linea coxali teiuii, valde abbreN'iaio, 

 metasterno punctulato, mcsosterno tranverse in nunlio d(^]>i-(\sso, 

 prosterno processu quadrato, punctis })aucis impresso. L. 2^ lin. 



