No. C)4] DiPTERA or connectici^t: taxonomy 237 



8. Wings with iii-cu usually at or near midlengtli of cell Jst .1/^; wings not 



striped longitudinally, at most with costal border darkened ; male i:y- 

 popygium with median region of tergite produced (oleracra group) or 



notched ( ultima group. Fig. 29, A-C) Tipula 



Wings with vi-cn usually close to fork of M ; wings usually witli ;. longi- 

 tudinally striped or vittate pattern, or, (iroquois) with apex darkened; 

 male hypopygium with median region of tergite produced into a sim])le 

 or bifid usually roughened lobe or lobes. Fig. 28, A-0 . Yamatotipula i«*'/ 



9. Wing-veins almost witliout trichia, there being none, on M or its ))ranclus ; 



squama naked ; claws simple ; Northern and Arctic Arctotipula 



Wing-veins with conspicuous trichia; squama naked or with a group of 



setae ; claws ( $ ) oi local species toothed 10 



10. Squama naked; wing-pattern clouded or marbled with brown Oreomyza j f;'; 



Squama with a small group of setae; wing-pattern commoidy unicolonms 

 or subunicolorous, more rarely marmorate Lunatipula 



111 the followino; discussion of tlie local species of Tipula, vir- 

 tually all names that have been applied to the forms in question will 

 be found, either as valid names for the species or as synonyms. There 

 remain a few further species that are not definitely recognizable and 

 are herein considered as being doubtful species. In order to complete 

 the data, these remaining forms are listed herewith. 



Tipula frigida AValker; List Dipt. Brit. Mus., l:Gb; 1848. De- 

 scribed from Nova Scotia; type apparently lost (Edwards, in litt.). 



Tipula Tnaculatipennis Say; Long's Exped. to St. Peter's River, 

 Append., p. 359; 1824; and Complete Writings, 1:243; 1859. Name 

 later changed to tnaculipennis by Wiedemann (Aussereur. Zweifl. Ins., 

 1:46; 1828). Type lost with the destruction of the Say Collection 

 during the 1840's. Material in the Harris Collection suggests that 

 the species may be dorsimacula Walker but under the circumstances it 

 seems best to consider the species as being unrecognizable. 



Tipula pratorum Kirby; Fauna Boreali Americana, 4: 3101; 1837. 

 (Reprinted, Can. Ent., 13:164-165; 1881). Arctic America. Species 

 unrecognizable from description. 



Tipula retort a van der Wulp: Tijdschr. v. Entomol., 24:149; 

 1881. Described from eastern Canada ; not definitely recognized since 

 its original definition. 



Subgenus Trichotipiila Alexander 



1915. Tipvla (Triehotipnla) Alexander; Proc. Acad. Nat. Sci. Pliila- 



delphia, 1915:468-469. 

 1915. T. (Oinctotipula) Alexander; Ibid., 1915:469. 

 1919. T. (Odontotipula) Alexander; Cornell Univ. xigr. Expt. Sta. 



Mem. 25 : 9h9. 



Bs short, arcuate, subequal to ?n-eu, the latter connecting with 

 M^ close to origin; 3I-^ + i short to very short. Cells beyond cord with 

 macrotricliia. Sciuama naked. Tibial spur formula 1-2-2. No .ster- 

 nopleural setae. 



