TRAVAUX INÉDITS. 401 



Obs. The menlum lias ils anlcrior angles vcry much 

 porrectcd, Ihe tips ralhcr obtuse, hcr intcrmediate 

 spacc is li'uncate and slighth emarginatc in lier midJle 

 el withoul damy cenlral tootli. 



Specics 9. P. hijdroporoides, Weslw. — La;vis, nitida, 

 capite nigro, pronoto el scutello fusco-lcstaceis, elyti'is 

 nigris, singuli plaga elongata, anliee dilatata liraboque 

 lenui lulcis nolato ; antennis pedibusque luleo-testa- 

 ceis (PL 14, f. 7). — Long, corp., lin. 2 1/2. — Ha- 

 bitat in Australia (Adélaïde). In Mus. Hope (D. Fort- 

 nuinj. 



P. hydruporoides. — Caput nigrum, nitidum, impunc- 

 tatuin, niarginc lalerali et antico, labro, niandibulis et 

 antennis luteo-testaceis. Pronotum Iransversum, lateri- 

 bus vis rcflexis, lutoum, disco magis brunneo. Scutel- 

 luni brunneuui. Elytra nitida, paruni convcxa, vix mar- 

 giiiata, kcvia, ad basin parte postica pronoti parum la- 

 tiora et ad médium scnsini parum dilatata , nigra 

 niarginc laterali et apicali, ncc non singuli plaga elon- 

 gata cum sutura paralella, et anticc versus humeros 

 dilatata, albido-lulcis notata. Corpus subtus luteum, 

 capite nigro, parlibus oris luteis, tibiis tarsisque casta- 

 neis. Emarginatura menti inermis, paruni arniata. Ab- 

 domen segmcnto pcnultinio in mcdio marginis pos- 

 tici profunde cniarginato. 



Spccies 10. P. maculatu, Ncwman. — Nigra, subni- 

 tida, laevis; marginibus latcralibus tlioracis et elytro- 

 rum liorumque maculis quatuor pallide albidis, tlio- 

 racis mcdio scutelloqiie piceo-rufis (PI. [i, f. 8). — 

 Long. Corp., lin. ô l;2 (1). Davis). — Habitat in Aus- 

 tralia (Adélaïde). In Mus. britann. 



Syn. Siliihomorpha maculata, Newman, in Charlcs- 

 worlh,Mag. of Nal. Hisl.. I. IV. p. 5(J5 (Jiil., 1810). 

 — Gcrmar, in Liniuca Entoniologica , IIF. p. 171 

 (1848). 



Tùlc d'un brun noir, glabre; prolhorax d'un brun 

 2* scuB. T. V. .\niiéc1855. '2(i 



