838 DIPTERA OP AUSTRALIA, 



numerously spotted with brown ; stigma brown, rather paler than 

 the markings. 



Hah. — Sydney and other localities in N.S.W., May to October. 

 (Masters and Skuse) ; Brisbane, Queensland, (Mr. H. Tryon) ; 

 usually found among grass. 



Ohs. — Two specimens in the Macleay collection labelled Nepaul 

 and Fiji respectively, do not seem to exhibit any characters which 

 would lead one to separate them from this species. The same 

 remarkable species it appears also occurs in Borneo, Ceylon, China 

 and the Arabian Desert. 



Section IV. Limnophilina. 



"Two sub-marginal cells ; usually five, seldom four posterior 

 cells j discal cell generally present ; sub-costal cross-vein posterior 

 to the origin of the second longitudinal vein, usually closely 

 approximated to the tip of the auxiliary vein (considerably distant 

 from it in Trichocera only). Eyes glabrous (pubescent in Tricho- 

 cera). Normal number of antennal joints sixteen. Tibise with 

 spurs at the tip ; empodia distinct ; ungues smooth." (Osten- 

 Sacken). 



The Section Limnophilina includes about a dozen recognized 

 genera. The genera Gynojylistia and Gerozodia, peculiar to the 

 Australian region, possess remarkable characters and are closely 

 allied ; the former seems numerous, but only two species of 

 Cerozodia have been described. Ctedonia, Phil., from Chili, to 

 which Gynoplistia fusca^ Jaen., is referred, is, according to 

 Baron Osten-Sacken, closely allied to Gerozodia. Except Limno- 

 phila, the other genera contain but few known species. 



Genus 22. Limnophila, Macquart. 



Limnophila^ Macq., S. a B. Dipt. I. p. 95, 1834 ; Limnomya^ 

 Rondani, Prod, etc., IV. Corrigenda, 1861 ; Limnophila, 0-Sacken, 

 Mon. Dipt. N. Amer. IV. pp. 196-202, pi. 2, f. 6-10 (wings) ; 

 pi. 4, f. 23-27 (genitalia), 1869; Studies, II. p. 209, 1887. 



