256 PROCEEDINGS OF THE NATIONAL MUSEUM vol. in 



Tergites dark brown except for large white mesolateral spots on tergites iii 

 and (usually) iv; venter with some indication of brown anterior fasciae on all 

 sternites; tibiae and tarsi mostly browi nitens (Hutton) 



3. Wing distinctly and evenly infuscated; anal vein joins vein Cu2 far before hind 



wing margin; abdomen with dense, nearly appressed, silvery, short pile on 



tergites ii and in laterally leptisoma, new species 



Wing mostly hyaline; anal vein does not reach vein CU2; abdomen without 

 silvery pile as indicated above 4 



4. Frons without pile; tergites with normal posterior white fasciae 5 



Frons well developed and with long pile; tergites black to dark brown without 



white posterior fasciae except narrowly on iv and v. 



(Protogcodes) paramonovi, new species 



5. Body covered with brown pile; abdomen with medial clumps of pile on tergites 



ii-iv and lateral clumps on iv-vi similis, new species 



Body covered with whitish yellow pile ; abdomen without clumps of pile ... 6 



6. Abdomen usually with tergites i and 11 black, the remainder brown in the males; 



legs mostly light browm consimilis Brunetti 



Abdomen rather concolorous dark brown or black; legs mostly dark brown. 



brunneus (Hutton) 



Ogcodes (Ogcodes) brunneus (Hutton) 



Plate figures 8, 68, 82 



Henops brunneus Hutton, Cat. Dipt. New Zeal., p. 24, 1881.— Maskell, Trans. 



New Zealand Inst., vol. 20, pp. 106-108, pi. 10, 1888.— Hutton, Trans. New 



Zealand Inst., vol. 33, p. 29, 1901. 

 Oncodes brunneus, Brunetti, Ann. Mag. Nat. Hist., vol. IS, p. 593, 1926.— Dumble- 



ton. New Zealand Journ. Sci. Tech., vol. 22 (sec. a), pp. 97a-101a, figs. 1-5, 



1940. — Paramonov, Pacific Sci., vol. 9, p. 23 (•=brunneusl), 1955. 



Type locality: Lake Wanaka, Otago, South Island, New Zealand 

 (Canterbury Museum, New Zealand). 



Diagnosis: Species of group i with typical white abdominal fasciae, 

 otherwise whole body dark brown to black and covered with moder- 

 ately long, whitish yellow pile except median portion of tergites iv-vi 

 of male; wing hyaline, veins mostly clear except costa and radius 

 brown; vein Mi and crossveins m-cu and r-m present but rather pale 

 (pi. 3, fig. 8) ; squama snowy wbite, opaque, narrowly margined light 

 or dark brown, halter mostly light brown; male genitaUa dark brown, 

 median plate long and narrow in lateral view (pi. 11, fig. 82) ; basal cell 

 large, subbasal cell small, "wings" short, aedeagus expands toward 

 apex, which is narrowly rounded fpl. 10, fig. 68). 



Discussion: It seems clear that consimilis Brunetti is closely related 

 to brunneus, but the genitalia easily separates the two. However, 

 I have been unable to find any specific differences between the females 

 of the two species. I have seen several specimens of what appeared 

 to be brunneus, but only one of these was a male, and thus the geni- 

 talic character mentioned above may be more variable than noted. 

 Other male specimens that had tentatively been considered to be 



