BV P. CAMERON. 177 



the depressions on the pro- and mesopleurae strongly striated. 

 Abdomen (including postpetiole) smooth. 



This species is hardly typical Vohjitnus, as compared, for 

 example, with L' . syinijtrus Cam., from Borneo; the abdomi- 

 nal petiole is longer and more slender ; in the Bornean species, 

 it becomes gradually widened from near the base, while, in the 

 Australian, the petiole is long, slender to the post-petiole, 

 which is triangular and not much dilated ; the areolet is 

 larger, almost square, the transverse median nervure is not 

 interstitial, but received shortly behind the transverse basal ; 

 there are no spines on the metanotum as in F . sinniferus; in 

 that species they are narrower. It may form the type of a 

 new genus. The Malay species are hardly typical as compared 

 with the American. Possibly the discovery of a male may 

 help to settle definitely the generic location of the Australian 

 form, which cannot well be referred to Suvalta either. 



Mesostenoideus stirocephalus, sp.n. 



Black; eighth to thirteenth antennal joints white, pedicle 

 brownish ; face, the white above, roundly dilated on either 

 side of middle, leaving a triangular incision between them, the 

 lower edge roundly trilobate, the middle lobe slightly larger 

 and more rounded than the lateral, an oval spot in upper half 

 of the middle clypeus, basal half of mandibles, palpi, inner 

 orbits from the antennge, where the line is obliquely narrowed, 

 a line on the outer, commencing at the end of the upper 

 fourth, becoming gradually widened below, where it is oblique 

 and extends to the middle of malar space, a broad line on sides 

 of pronotum ; rounded at both ends, nearer the base than the 

 apex, tegulae, tubercles, a conical spot, not much longer than 

 wide, on the apex of middle lobe, scutellum-keels, scutellum, a 

 conical spot, a little longer than it is wide, the narrowed end 

 at the base ; the spines, a large irregular rounded spot near 

 the centre of the base of mesopleurse, a much smaller, widely 

 conical one on the apex near the middle coxae, a curved line, 

 about four times longer than wide in the centre of the outer 



