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Genus PSELLIOPHORA, Os. Sac. 

 Psellic>2)hora, Osten Sacken, Berlin. Entom. Zeits. xxx, p. 165 (1886). 



GENOTYPE, Tipula lata, F. ; by present designation.* 



Osten Sackeu's differentiation of this genus from Ctenopliora is 

 as follows : 



" Pselliophora (which means bracelet-bearer), gen. nov., comes 

 nearest to Ctenopliora, sensu stricto, represented by the European 

 species pectinicornis, faveolata, elegans, etc. It is easily distin- 

 guished, however, by the following characters : 



" (1) The four branches issuing from the same antennal joint 

 (in the male) are of the same length (in Ctenopliora, s. str., the 

 inner pair is distinctly shorter) ; (2) the branches of the male 

 antenna? are clothed with rather long, soft, not very dense hairs ; 

 (3) the 12th joint has two pnirs of branches (onlv one in Ctenopliora, 

 s. str.); (4) the forceps of the male has a different structure; 

 the long protruding adminiculum, so conspicuous in Ctenopliora, 

 s. str., is wanting here ; (5) the females are more difficult to dis- 

 tinguish from those of Ctenopliora, s. str., the most trustworthy 

 character, as far as I can see, lies in the structure of the 3rd joint 

 of the antennae (1st joint of the flagellum), which here becomes 

 broader from base to tip, without having the expansion on the 

 underside, such as exists in the females of Cttnopliora, s. str. ; 

 the other joints are more rounded, and thus the flagellum appears 

 less serrate on the underside; the latter half of the abdomen is 

 much less expanded here, the upper valves of the ovipositor more 

 straight and pointed. 



" Most of the species of this group have a white ring at the 

 base of each tibia (hence the name of the group) ; the wings are 

 often brown, with well-defined white or yellowish spots ; sometimes 

 uniformly brown, or yellowish with brown tips. The two pairs 

 of branches on joints 4-12 of the male antenna are slender and 

 rather long, from one and a half to two and a half [times] the 

 length of the joints; the longest are in the middle of the flagellum.'' 



The present genus is identical with Ctenopliora except for the 

 few differences mentioned above. 



Those new species of which only the females are known are 

 placed here only temporarily, as until their males are discovered 

 it is impossible to define their generic position with certainty. 



Life-history. The metamorphoses of no Oriental species have 

 been studied, but the larvae probably live in decaying wood, as is 

 the case in the allied genus Ctenophora. 



Table of Species. 



L Tibiae with at least the hinder pair with 



a pale coloured ring near base 2. 



Tibiae without a pale ring on any of them. 3. 



* No type species has, so far as I am aware, been indicated for this genus. 

 I propose P. leeta, F., because it is the most widely distributed species in the 

 East, the genus being essentially an Oriental one. 



