114 PROCEEDINGS OF THE NATIONAL MUSEUM vol. us 



of femora somewhat infuscate, with clear yellow fascia between basal 

 infuscation and apical dark band. 



Hind 40 57 45 23 17 10 7 0.79 



Wing spots smaller and more distinct than in T. stellatus Coquillett 

 (cf. Malloch, 1915, pi. 27, fig. 5) ; spot over r-m extending only narrowly 

 onto surrounding membrane. Wing length 2.00 mm.; venarum ratio 

 1.14. 



Abdomen dark brown, apical one-fom'th of each segment yellow. 



Genitalia with dististyle slightly cm'ved, broadened near middle; 

 proximomesial border of basistyle not strongly projecting as in T. 

 stellatus Coquillett. 



Allotype: In USNM: Lee's Ranch, Chatsworth, Los Angeles Co., 

 July 25, 1960. 



Wing length 2.11 mm.; fore tarsi missing; hind leg ratio 0.74; 

 venarum ratio 1.20. Wing spots darker and larger with spot over 

 r-m approaching size of that found in T. stellatus. 



Paratype: In UCLA: 1 female collected with the allotype. Wing 

 length 2.22 mm.; fore and hind tarsi missing; venarum ratio 1.14. 



The species most closely resembles T. stellatus CoquiUett, from 

 which it can be distinguished by the dististyle of the male genitalia, 

 which is slightly bent and broadened before the apex, and by the wing 

 spots, which are smaller and do not coalesce. The spot over r-m is 

 distinctly smaller in this species. 



Tanypus stellatus Coquillett 



Figure 4/ 

 Tanypus stellatus Coquillett, Proc. U.S. Nat. Mus., vol. 25, p. 89, 1902 (1903). 



I have not examined the type specimen. My interpretation of the 

 species is that of Malloch and is based on material in the Illinois 

 Natural History Survey Collection. A specimen from Cedar Lake, 

 Indiana, July 17, 1914, was used in the following description, which 

 supplements MaUoch's earlier one. 



Postocular bristles about 12 to 14 on vertex, 6 to 7 on each side of 

 midline in single row. Eyes long, parallel-sided, dorsally extended. 

 Antennal ratio 2.29. Palpi ratio 25:38:50:75. About 20 clypeal 

 bristles. 



Pronotum with 21-32 fine lateral bristles. Mesonotum with only 

 faint indication of tubercle characteristic of genus; tubercle dark, 

 concolorus with mesonotum. 



