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new to science. The following is the arrangement and summary of the genera 

 and species : — Dolichopezina, genus DoUchopeza, Curtis (syn. Apeilesis, 

 Macq.), 8; and Tanypremna, O.-Sack., 1; Ctenophorina, Ctenogyna, Macq., 

 1, and Clytocosmus, gen. nov,, 1; Tipulina, Sect. 1. No nasus to rostrum, 

 — Plilogyna, Westw., 1; Platyphasia, gen. nov., 1; Plusiomyia, gen. nov., 

 5; Habromastix, gen. nov., 3, and P/iymaiopsis, gen, nov., 1; Sect. II. Nasus 

 to rostrum, — Semiwtes, Westw., 2; Leptotarsus, Guérin, 5; Holorusia, 

 Loew, 1; Ischnotoma, gen. nov., 3; Acracantha, gen. nov., 3; Pachyrrhina, 

 Macq., 1, and Macromastix , O.-Sack., 6. Apeilesis is considered identical 

 with DoUchopeza, the différence to be found in the male holding-forceps 

 being not regarded as of sufficient importance to divide the species into two 

 separate genera, but possibly of some subordinate value. Ctenogyna, Macq., 

 has no relationship to Plilogyna, possessing a distinct nasus and the general 

 characteristics of the Ctenophorina ; Clytocosmus (g. n.), also referred to this 

 section, is a very striking and peculiar form, without a nasus to its long 

 rostrum, apparently connecting the Ctenophorina with the Tipulina. Plilo- 

 gyna ramicornis, Walk., has been characterised under five different specific 

 names. Plusiomyia (g. n.) is suggested for the reception of Walker's Pedicia 

 gracilis, afterwards described by Westwood as Ozodicera longipedalis \ four 

 new species are added, two doubtfully, for they not only show certain pecu- 

 liarities not quite in accordance with this genus, but the males, which are as 

 yet unknown, may ultimately be found to also offer important distinctions. 

 Platyphasia (g. n.) seems to be intermediate between Plilogyna, and Phisio- 

 w,yia. The fresh genera Habromastix, and P hymalopsis contain species cer- 

 tainly related to those embraced in the preceding by the simple structure of 

 the male genital organs, &c. , but exhibit striking unconformities ; whilst the 

 antennae, which are very long in Habromastix, are in no case ramose, pecti- 

 nate, or even serrate. Among the species having a distinct nasus to the 

 rostrum, no species have been found which correspond to the genus Tipula, 

 Linn., sensu stricto. Of these, two appear to very well correspond with Holo- 

 rusia, Loew; the remainder, remarkable for the simple structure of the male 

 genital organs, and all characterised by serrate or sub-pectinate antennae, 

 are contained in Ischnotoma (n. g.), among which the species hitherto known 

 as Plilogyna par , Wlk., is included. Macromastix costalis, Swed., has been 

 described under no less than six different names. The examination of a very 

 large number of specimens from all parts of Australia convinces the author 

 that only one species of the genus has been hitherto described from this 

 country. To this five new species are added ; in one the male possesses mo- 

 derately long antennae, but in the remaining four species the antennae are 

 equally short in both sexes. The inconspicuous character of the sexual organs 

 in both male and female, thirteen-jointed antennae, tubercle on the front, 

 &c., are constant throughout. — .5) Botanical. — 6) Description of a new 

 Snake from the Herbert River District, Queensland. By J. Douglas Ogilby, 

 F.L.S. Three specimens of the snake herein described under the name Pseti- 

 doferania Macleayi, gen. et spec, nov., were collected by Mr. J. A. Boyd. 

 The new genus differs from Ferania in having the scales in twenty-one rows, 

 an extra shield on the head interposed between the posterior frontals, and 

 two pre- and one post-oculars. — 7) On the Structure and Systematic Posi- 

 tion of Cystopelta. By C. Hedley, F.L.S. , Assistant in Zoology, Queens- 

 land Museum. (Communicated by John Brazier, F.L.S.) This paper de- 



