26 T11K DIPTBRA-BRA0H7CERA OF TASMANIA, 



Proboscis not projecting forwards ; very small spe- 

 < :ie& Parapsilocephala, Knob 



4. Proboscis projecting prominently forwards; wings 



banded. Ectinorrhynchus, Macq. 



Proboscis not projecting prominently forwards. 5 



5. Eyes widely separated in both sexes ; front hairy ; 



robust species. Anabarrhynchus, Macq. 



Eyes joined in male, widely separated in female; 

 front bare ; slender species. 



P s i l o c e p n a i, a, Zett. 



21. Phycus, Walk. 



Syn. Salentia, A. Costa. 



Slender flies with extremely long antennae, the first 

 joint being usually much longer than the head, the sec- 

 ond extremely small, the third usually shorter than the 

 first ; fourth posterior cell of wings closed. 



Head broader than the thorax ; front bare. Proboscis 

 about the same length as the head, projecting forwards. 

 Palpi a little shorter than the proboscis. Antennae set 

 about the middle of the head in profile, long and thin, 

 the first joint usually longer than the head, the second 

 very short, the third usually shorter, but sometimes longer, 

 than the first. Eyes bare, separated in both sexes, some- 

 what narrowly in the male, but more widely in the female. 

 Thorax longer than broad, nearly bare. Abdomen conical, 

 bare; genitalia of the male large and elevated above the 

 abdomen, of the female retracted, and almost covered by 

 the anal segment. Legs of moderate length, bearing a 

 few small bristles. Wings short, usually banded or mot- 

 tled; fourth posterior cell closed. 



Phycus may be readily distinguished from the other 

 Tasmanian genera by the very long antennae in conjunc- 

 tion with the closed fourth posterior cell. Tin' only other 

 Australian genus with very long antennae is Agapophytu*, 

 which is distinguished by having the third antenna] joint 

 greatly broadened and compressed at. the apex. One of 

 the Tasmanian species of Phycus (/'. quatiens) seems to 

 be somewhat intermediate between Phycus and Agapo- 



jilt l/tlts. 



Table, of ih? Tasmanian Species of Phycus. 



1. Antennae black, the first joint longer than the 



third. Quatiens, Sp. nov. 



2. Antennae orange, the first joint shorter than tin- 



third. Imitans, Sp. nov. 



