I 



BY E. W. FERGUSON AND G. F. HILL. 249 



COENOPEOSOPON HAMLYNi Taylor. 



Taylor, Prbc. Linn. Soc. N.S. Wales, xlii., 1917, p. 521, Plate xxviii., fig. 3. 



Examination of the type in the Queensland Museum (E.W.F.) shows that 

 the species is incorrectly referred to Coenoprosopon. The palpi are altogether 

 different from the form described by Ricaxdo as characteristic of this genus, as 

 will be seen from a glance at the flgaire given by Taylor. In Coenoprosopon the 

 second joint is club-shaped with the expansion situated apically. The exact 

 genus to which this species should be referred is uncertain, and provisionally it 

 might be referred to Corieoneiira, as the palpi are similar to those structures in 

 C. fulva Macq. The antennae should have the third joint 8-annulate, but the 

 annulations are not «asy of definition, the apical 4 are distinct, but the basal 

 4 are more or less fused, with only indistinct traces of the annulations. A very 

 similar structure is seen in Pseudotabanus * and it is possible that hamlyni would 

 be more correctly placed in that genus. 



The name Corisoneura is used in the old sense; probably our Australian 

 species will come under Austen's new genus Buplex. 



Falimmecomyia WALKER! Newm. 



Pangonia walkeri, Newman, Trans. Ent. Soc. Lond., iv., 1856, p. 56. — Palim- 

 mecomyia eelaenospila, Taylor, Proe. Linn. Soc. N.S. Wales, xlii., 1917, p. 518, 

 Plate xxviii., fig. 2. 



There seems no doubt that Taylor's species is the same as Newman's. The 

 latter's name has dropped out of Miss Ricardo's list, though given in Froggatt's. 

 W* are indebted to Mr. Longman, Director of the Queensland Museum, for the 

 loan of a paratype of PaUmmecomyia oelaenospila Taylor, and it corresponds 

 closely with Newman's description, the only difference being the omission of any 

 mention of the lateral spots on the basal abdominal segments. The colouration 

 is most distinctive, especially the contrast of the black scutellum and under sur- 

 face with the yellow colour of the rest of the insect. Taylor's flgnire of the 

 wing is darker than it should be, and Newman's terse description "alis, nitidissimis 

 hyalinis, nebula apicali fusca" gives a better picture. The first posterior cell 

 appears to be variable; it is described as open by Taylor, and is open in the 

 paratype — ^the figure, however, shows it as nearly closed in the margin and in a 

 specimen in the Macleay Museum it is closed above and united to the margin by 

 a short stem. 



Newman's type came from the same locality as Taylor's. The species ex- 

 tends into New South Wales, and the specimen in the Macleay Museum is from 

 Lane Cove, Sydney, while there is also a specimen in the collection of the De- 

 partment of Agriculture of New South Wales, from Temora. 



SiLvius EQUINUS, n.sp. (Text-figures 1 and 2.) 



Colour. Antennae and thorax mummy brown, scutellum paler, 1st abdominal 

 segment darker, palpi, proboscis and legs blackish-brown, wings uniformly dark 

 smoky, excepting costal cell, which is darker than others; remainder of abdomen 

 blackish, each segment excepting the last with a narrow but distinct apical 

 fringe of white hairs. Head (Text-figs. 1 and 2) : Prons clothed with golden 

 pile and scattered short black hairs. Callus more or less quadrate, as wide as 

 frons, with backward linear extension nearly reaching ocellar triangle. Occiput 

 golden, with fringe of scattered silvery hairs. Antennae with first and second 



* At any rate in P. queenslandi Ric, the only species of the genus examined . 



