G04 MR. R. E. TURNER ON 



22. PiSON LUTHSCENS, Sp. 11. 



5. Nigra ; mauilibulis, antennis, ab;lomine peilibusque riifo- 

 feiTLigiiieis ; tegulis testacais ; alis hyaliiiis, veiiis fuscis. 



Long. 4 mm. 



2 . Olypeus short and broad^ subtruncate at the apex, covered 

 Avith delicate silver pubescence. Head very closely microscopi- 

 cally punctured, with an abscure frontal sulcus reaching the 

 anterior ocellus. Eyes very little further apart, on the clypeus 

 than on the vertex ; the posterior ocelli nearly twice as- far from 

 each other as from the eyes, and as far from each other as from 

 the posterior margin of the head. Pronatum abliqvie; uieso- 

 notum and scutellum microscopicfl,lly punctured. Median seg- 

 ment scarcely as long as the mesonotum, rounded posteriorly, 

 finely punctured, granulate, the median sulcus almost obsolete, 

 the median cai^na distinct ; the posterior slope of the segment 

 very finely transversely striolate, with a deep median sulcus. 

 Abdomen minutely punctured ; second segment scarcely depressed 

 at the base, the apical margins of the segments in some lights 

 showing fascise o.f veiy delicate silver pubescence. Second 

 abscissa of the radius shorter than the petiole of the second 

 cubital cell ; recurrent nervures interstitial with the transverse 

 cubital nervures; secand cubital cell not quite as high as the 

 length of its petiole ; transverse median nervure interstitial with 

 the basal nervure. 



Hab. Muudaring Weix;W. A. .{Turner], Marcli 18, 1914. 



This little species closely resembles a small P. rujicor-nis, but 

 the neuration is different, also the sculpture of the median seg- 

 ment, and the antennae are shorter- and stouter. 



23. PisoN WESTWooDi Shuck. 



Fison loestivoodi Shuck. Tl-ans. E'nt. Soc. London,, ii. p. 77 

 (1837), 2. 



? Fison ohllqims Sm. O.it. Hym. B. M. iv. p. 316 (1856), $ . 



Shuckard states that the carina of the median segment is 

 absent in this species, but this is not usually the case, a long 

 series taken by me in Tasmania showing variation in this respect 

 from a well-developed carina to- the typical form as described by 

 Shuckard. The species may be easily recognised by the striation 

 of the whole dorsal surface of the median segment and the very 

 close proximity of the posterior ocelli to the eyes. I think that 

 P. ohliquus Sm. is a synonym^ but I have not seen the type. 

 There is a short transverse cai'ina at the base of the third ventral 

 segment of the male, as in the closely allied P. iridijjennis Sm. 



Hab. Eiglehawk Neck, Tasmania (Turner), March ; Mt. Wel- 

 lington, Tasmania [Turner), 3 iXwixavY ; Yallingup, W.A. {Turner), 

 November ; Kalamunda, W.A. {Turner), March ; Mackay, Q. 

 {Tamer), Cairns, Q. {Turner), October to June. 



