303 



elsewhere shining and with distinct punctures, having a 

 tendency to become confluent posteriorly. 



The locality given by Mr. Pascoe was simply Queensland; 

 but a male in my collection (from the Macleay Museum) is 

 labelled as from Rockhampton. A female (also from Rock- 

 hampton) in the British Museum dijffers from the male in 

 being slightly stouter, rostrum thinner and clothed only at 

 extreme base, and basal segments of abdomen gently convex. 



DiETHUSA. 



Two co-types of D. fervida were sent, and one bears a 

 name-label in Mr. Pascoe's writing. 



I cannot see that any of the tibiae are bicalcarate at apex^ 

 the supposed inner spurs are simply tufts of hairs in the usual 

 positions. Probably on the type these tufts were cemented 

 together, and so appeared as mucros. There are certainly, 

 however, several species of Bietliusa and Melanterius, whose 

 front tibice are bicalcarate at apex. Other characters relied 

 upon to distinguish the genus from Lyhceha and Enide were 

 the subiilation of the rostrum and abdominal sutures, but these 

 are of specific importance only.<i^ Previously I united Enide 

 and Lyhcpha, and now propose that these be merged in 

 Diethtisa, that name having priority of pagination. ^2) 



DiETHUSA FERVID A, PaSC. 



(Lyhcepa aciitico.<ta , Lea.) 

 One of the co-types is labelled South Australia, the other 

 Gawler, They are evidently sexes : in the male the antennae 

 are inserted nearer the apex of the rostrum than in the female, 

 and the rostrum itself is wider and less subulate in front of 

 same, although distinctly narrowed to the apex. Mr. Pascoe 

 described the general colour as black, and the rostrum as 

 brownish-ferruginous or ferruginous ; the co-types have the 

 rostrum blackish, with the apical fifth in the male and the 

 apical fourth in the female reddish. I have redescribecl the 

 male of the species under the name of Lyhceha acnticosfa, but 

 the form described as the female of L. acuticosta was wrongly 

 referred to that species, and really belongs to D. metasternalis. 



Enide cestuans, Pasc. (now Diethusa). 

 Four co-types sent, one bearing a name-label in Mr. 

 Pascoe's writing. They agree with the species I redescribed 



as such.^^^ 



(iiProc. Linn. Soc, N.S.W., 1899, pp. 250-251. 



(2) Ann. & Mag. Nat. Hist., March. 1873: Diethusa, p. 185: 

 LyhoEha, p. 186; Enide. p. 187. 



(3)Proc. Linn. Soc, N.S.W., 1899, p. 253. 



