512 STUDIES IN AUSTRALIAN ENTOMOLOGY. 



Sarticus IRIDITINCTUS. 



Feronia [Steropus) iriditincta, Chaiid., Bull. Mosc. 1865, iii. 

 p. 100. 



This species is unknown to me ] the following is de Chaudoir's 

 description. 



" Prsecedentis [aS. cycloderus] summa affinitis, differre tamen 

 videtur thorace longiore et angustiore lateribus minus rotundato, 

 postice haud angustato, ovoideo, antice emarginato, basi sub- 

 truncato, margine posterius minus dilatato, elytrorum striis multo 

 obsoletius punctatis, interstitio tertio punctis duobus tantum 

 impressis, et imprimis colore to bins fere corporis valde irideo. 



Long. 8 J mm. 



Hah. — Swan Eiver." 



Sarticus quadrisulcatus. 



Feronia (Sarticus) quadrisulcata, Chaud., Bull. Mosc. 1878, 

 iii. p. 67. 



A remarkable species unknown to me. The following are its 

 chief characteristics taken from de Chaudoir's lengthy description. 



It is distinguished from all the species of this subgenus, and 

 from the majority of the species included in Feronia, with the 

 exception of Oribazics, by the sculpture of the elytra which have 

 only 4 deep sulci. Eacies of S. saphyreomarginatus. Elytra 

 not wider than the thorax, smooth and rather convex, striae deep 

 but narrower and less punctate [than in S. saphyreomarginatus], 

 2nd, 3rd, 6th, and 7th totally obliterated so that the interstice 

 which separates the 2nd from the 4th has the width of 2 inter- 

 stices, while there is only 1 between the 5th and 8th striae. Of an 

 iridescent black, very shiny, and as if varnished, prothorax and 

 elytra of an iridescent bronze with the lateral channel of the 

 prothorax, the wide external interstice of the elytra as well as the 

 9th interstice and the lateral groove of a coppery green, the lateral 

 margins and the epipleurse are black like the under surface. 



Length 19 mm. ; breadth 6 J mm. 



Hah. — Port Denison. 



