23 



anguste attingenti in disco retrorsum extensa et in sutiira 



producta, 2* post-mediana sat lata, 3''' apicali cum 2* in 



sutura anguste connexa), corpore subtus aureo-seneo, anteanis 



pedibusque cyaneis (his viridi-micantibus) ; capite minus 



elongate, crebre fortiter punctulato, inter oculos profunde 



concavo, parte inter oculos retrorsum baud angustata ; pro- 



thorace quam longior sesquilatiori, subgibbo (i.e. antice 



fortiter declivi), ut caput punctulato, lateribus a margine 



antico (hoc quam basis fere duplo angustiori) longe pone 



medium divergentibus (hinc ad basin fere rectis) ; elytris ad 



basin subrectis, ad apicem late rotundatis, striatis, intersti- 



tiis parum convexis punctulatis, lateribus postice crenulatis ; 



corpore subtus crebre sat fortiter punctulato ; unguiculis 



inermibus. Long., 8 1. lat., 3^ 1. 



The three strongly contrasted colors of the upper surface (bright 



copper on the head and pronotum, pale yellow and cyaneous on 



the elytra) together with the unarmed apices of the elytra render 



this species easy to identify. It is not unlike iS. cupricollis, 



Saund., but in that species the elytra are emarginate and spinose 



at the apex and there are three zones of yellow on the elj^tra, — 



in the present species only two (this is not a sexual difference), 



&c., &c. The cyaneous markings on the elytra are intricate and 



difficult to describe. The basal is of very transversely quadrate 



form and does not reach the lateral margin except very narrowly 



at the base; it extends backward about one-seventh of the length 



of the elytra but is triangularly produced about half as far again 



on the suture. The postmedian fascia (looked at with the apex 



of" the elytra towards the observer) bears a rough resemblance to 



a tree, the trunk of which is represented by the connection on 



the suture of the postmedian fascia and the apical blotch. The 



apical blotch occupies about the apical one-eighth of the elytra, 



and its front margin is somewhat sinuous. The specimens before 



me are females. 



Thursday Island (sent to me by Mr. French). 

 S. erubescens, sp. nov. Modice elongata ; sat nitida ; colore 

 variegata, capite prothoraceque purpureo-violaceis (illo 

 viridi-tincto), elytris in parte anteriori testaceo-brunneis in 

 parte posteriori tertia sanguineis [his notulis cyaneis ornatis, 

 — sc. basi summa sutura parte antica excepta (in hac colore 

 cyaneo postice dilatato) et fascia subrecta mox pone medium 

 sita (hac nee suturam nee marginem lateralem plane attin- 

 genti)], corpore subtus antice violaceo postice viridescenti, 

 antennis pedibusque altero adspectu cyaneis altero viridibus; 

 capite sat elongate, crebre minus fortiter (postice magis 

 fortiter minus crebre) punctulato, inter oculos vix concavo, 

 parte inter oculos retrorsum baud angustata ; prothorace 



