Relationships existing amongst Natural Objects. 415 



Thorax transversus, antic^ angustior, postic^ elytrorum baseos latitudine, sinu 

 lato antico pro receptione capitis, margine postico fer^ rect^ tnmcato 

 angulis anticis acutis, posticis subrotundatis ; marginibus lateralibus 

 rotundatis, tenuissim^ marginatis : prosternum inter pedes anticos acut^ 

 protensum : metasternum breve. Scutellum parviinij subtriangulare. Ely- 

 tra oblongo-subquadrata, depressa, posticfe paull5 angustiora, basi tho- 

 racis partis posticse latitudine, et ad eum arct^ applicata, tenuissim^ 

 marginata, apicibus obliqu^ subtruncatis, abdominis apicem baud tegen- 

 tibus. Pedes breves, femoribus magnis, ovatis, compressis, subt^s (pro 

 receptione tibiarum) carinatis, tibiis gracilibus, anticis intCis apicem 

 versus emarginatis, tarsis subsetaceis, articulis simplicibus, anticis sub- 

 tus (in uno sexu saltern) serie duplici pulvillorum minutissimorum ; un- 

 guibus duobus. 



Spec. 1. SpHALLOMORPHA DECIPIENS. 



Nigra, laevis, subnitida ; ore, antennis pedibusque luteo-piceis, thoracis elytro- 

 rum que limbo tenui-luteo. 

 Long. Corp. 4 lin. 

 Habitat in Nova HoUandi^. 

 In Mus. nostr. 



Hoc genus a Pseudomorphd differt habitu latioriet magis depresso, et pree- 

 sertim structura juguli, menti et palporum labialium, atque ab Adelotopo 

 antennis filiformibus, mento et palpis. 



I am further enabled by the kindness of the Rev. F. W. Hope to add to the 

 interest of this communication by the introduction of a figure and description 

 of another New Holland insect, vrhich in some respects appears to be interme- 

 diate between Pseudomorpha and Sphallomorpha, and of which the following 

 are the characters. 



SiLPHOMORPHA. 



Corpus oblongo-ovatum, subdepressum ; thoracis elytrorumque lateribus sub- 

 continuis, subreflexo-marginatis. 



Caput, antennae, mandibulce, maxillcp, et palpi maxillares fere ut in Sphallo- 

 morpha. Labrum latum, breve, margine antico in medio par^m emar- 



VOL. XVIII. 3 I 



