652 STUDIES IN AUSTRALIAN ENTOMOLOGY, 



Elytra striate, the 5th stria bent obliquely inwards towards the 

 base; the base bordered, the border ending in a tooth at the 

 shoulders ; no abbreviated subscutellar stria. 



Prosternum not excavate between the coxse, not margined 

 behind. Metasternal episterna and epimera short though together 

 longer than front margin of episterna. Sterna smooth. 



Ventral segments crossed by transverse sulci, smooth ; the punc- 

 tures of the ambulatorial setse present, these large and foveiform 

 on apical segment. 



Body not pedunculate, apterous. 



This form is a very distinct one among the Australian Feronini. 

 It appears to have some affinity to Microferonia, Blackburn, a 

 genus I have never seen ; but the shape of the palpi and the 

 sulcate ventral segments are sufficient in themselves to prevent 

 its coming into that genus. Its place seems to be in the series of 

 genera of which Ceneus may be taken as the central genus; these are 

 characterised by their sulcate ventral segments, and maxillary palpi 

 with the penultimate joint triangular and shorter than the last. 

 The single impression on each side of the prothorax behind will 

 readily distinguish it from Ceneus, &c. 



LoxoGMUs OBSCURUS, n.sp. 



(J. — Black, shining ; antennae, tarsi, and parts of mouth piceous. 

 Head smooth, short, strongly impressed on each side ; the space on 

 each side between the eyes and frontal impression forming a ridge; 

 clypeal suture strongly marked ; a transverse impression across 

 the head behind the eyes ; eyes prominent. Prothorax smooth, 

 depressed, broader than long (3x4 mm. ), not narrowed behind ; 

 sides parallel behind, rounded in front ; anterior angles not 

 produced ; posterior angles rectangular ; anterior margin broadly 

 emarginate, bordered on each side; base truncate, the middle very 

 lightly emarginate ; lateral margin narrow, reflexed ; median line 

 lightly marked, not reaching either margin ; a single narrow 

 longitudinal impi'ession at the base on each side about half way 

 between median line and margin. Elytra broad (6|x4Jmm.), 



