510 MR. R. E. TURNER ON [May 12, 



is also broader. Also allied to P . fuscipenne Sm. from W. Aus- 

 tralia and P. nitidum Sm. from Mysole, but the distance between 

 the eyes is much greater than in either species, and the antennae 

 are much longer than infusci2)e7ine. 



PlSON INSULARE Sm. st. PRISCUM, n. st. 



5 . Olypeus nearly twice as broad as long, bluntly produced in 

 the middle of the anterior margin. Antenna? as long as the 

 thorax and median segment combined, inserted a little further 

 from each other than from the eyes ; the second joint of the 

 flagellum a little longer than the thu'd, and about two and a half 

 times as long as the first. Eyes narrowly and deeply emarginate, 

 fully half as far again from each other at the base of the 

 mandibles as on the vertex, the distance between them on the 

 vertex exceeding the length of the second joint of the flagellum. 

 The posterior ocelli as far from the eyes as from each othei-. 

 Head opaque, the clypeus and the front round the base of the 

 antennae clothed with shining white pubescence. Thorax shining, 

 minutely punctured. Median segment shoi-ter than the meso- 

 notum, almost vertically truncate posteriorly, very finely and 

 sparsely punctured, shining, with an almost obsolete median 

 sulcus ; the face of the truncation with a deep depression at the 

 base, finely punctured at the base, with a few indistinct trans- 

 verse striae at the apex. Abdomen shining, minutely punctured, 

 the first segment oblique and slender at the base, much longer 

 than the second, the second segment not depressed at the base ; 

 the apical margin of the segments feebly depressed, with a little 

 greyish-white pubescence on the sides. 



Entirely black. Wings hyaline, faintly tinted with fuscous, 

 especially at the apex, and slightly iridescent ; nervures black. 



The first recurrent nervure is received close to the apex of the 

 first cubital cell, the second is interstitial with the second ti^ans- 

 verse cubital nervure. The second cubital cell does not reach 

 halfway from the cubital to the radial nervure ; the third is 

 about half as long on the radial as on the cubital nervure. 



Length 12 mm., exp. 20 mm. 



Hab. Mackay, Queensland (Turner) ; November. 



The eyes on the vertex of typical F. insulare, from the New 

 Hebrides, are nearer together than the length of the second joint 

 of the flagellum ; the clypeus is not bluntly produced in the 

 middle of the apical margin ; the median segment is less abruptly 

 truncate posteriorly, and the median sulcus on it is well defined. 

 The wings are also more hyaline. 



These differences hardly seem of full specific importance, though 

 quite sufficient to constitute a good geographical race. 



PiSOK INFUMATUM, Sp. n. 



§ . Clypeus twice as broad as long, bluntly produced on the 

 middle of the apical margin, thinly covered with short grey 

 pubescence. Head opaque, with a very obscure longitudinal sulcus 



