646 NEW SPECIES OF LAMPYRID^, 



decreasing in length towards the extremity, and each slightly 

 produced internally at the apex, terminal joint rather small, 

 rounded anteriorly. Prothorax transverse, rounded in front, 

 anterior margin strongly reflexed, the sides reflexed, sub- 

 diaphanous ; the posterior margin reflexed, bisinuate. Scutellum 

 elongate, rounded behind. Elytra elongate, rounded behind, each 

 with four moderately elevated costse ; the margins strongly 

 reflexed ; the suture raised. Abdomen flattened, the posterior 

 angles of the segments acute ; beneath the whole of the last two 

 segments are luminous, the terminal one gently bisinuate at the 

 posterior margin and slightly produced in the middle ; on each 

 side, beyond the sinuations, the segment is feebly emarginate. 

 Pygidium rounded behind. Legs moderately long; tarsi with the 

 4th joint strongly bilobed. 



I have convinced myself by a careful examination of the 

 genitalia, under a lens of suitable power, that all the specimens 

 to which I have been able to refer belong to the one sex, and that 

 the male. Under these circumstances it is not possible to decide 

 the exact position of the genus with any degree of certainty, but 

 I have little doubt of its near affinity to Diajohanes and Pyrocoelia, 

 both divisions which have been made at the expense of the old 

 genus Lam2yyris. The three Australian species I here propose to 

 distinguish under the name Atyjyhella, are not characterized by any 

 single point of structure (except perhaps the comparative length 

 and form of the antennal joints) separating them from the many 

 divisions of the Lampyridse, but they present certain features 

 which in combination seem to preclude their finding a place in any 

 of the existing groups. None of the joints of the antennae are 

 strongly serrate, as joints 3-10 are said to be in Pyrocoelia. 



I may add that Pyrocoelia hicolor, Fabr.,"^ described from 

 "Nova Cambria," and said also to occur in Java, is unknown to 



* This species is omitted in Masters' Catalogue of Australian Coleoptera, 

 apparently by an oversight, as it is included in that of Gemminger and 

 von Harold. The synonymy is as io\\o\^'&:—Lampyris hicolor, Fabr., 



