268 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lu 



Ogcotles iPgcodes) zonatus Erichson 



Plate figure 71 



Ogcodes zonatus Erichson, Entomographien, vol. 1, p. 170, 1840. 



Okcodes zonatus, Schiner, Verb. Zool.-Bot. Ges. Wien, vol. 15, p. 989, 1865. 



Oncodes zonatus, Kertesz, Cat. Dipt., vol. 4, p. 20, 1909.— Wandolleck, Einleit, 

 Inflatae, figs, on pis. 2 and 4, 1914. — Brunetti, Ann. Mag. Nat. Hist., vol. 

 18, p. 594, 1926.— Sfeguy, Fauna France, vol. 13, p. 168, 1926. — Pleske, 

 Konowia, vol. 9, p. 166, 1930.— Sack, Die Fliegen, vol. 98, p. 23, 1936. 



Type locality: Germany. 



Discussion: Species of group ii. According to Pleske (1930) this 

 species is widespread, reaching from MongoUa to Europe and 

 south into North Africa, though it is as yet unknown from 

 Scandinavia. This may be a Holarctic species as it seems very pos- 

 sible that eugonatus Loew is a synonym (see discussion under the 

 latter). The possibility that nigripes (Zetterstedt) is merely the 

 melanic form of zonatus is also discussed under eugonatus, and to 

 briefly summarize, it appears to me that melampus Loew, eugonatus 

 Loew, and nigripes (Zetterstedt) are all possibly color forms of 

 zonatus Erichson. 0. zonatus is also more closely related to cafer Loew 

 than to any western Palaearctic species known to me. 



Specimens examined: 5 cf, 2 9 . 



Germany: Icf, Nurnberg (Lichtwardt, EIS). 



Switzerland: 2cf, 2 ? , St. Mortiz, July 27, 1902 (Oldenberg, EIS) [det. by 

 P. Sack]. 



Hungary: 2 cf, without other data (EIS). 



Ogcodes {Ogcodes) nigripes (Zetterstedt) 



Henops nigripes Zetterstedt, Ins. Lapponica, p. 574, 1838. 



Oncodes nigripes, Kertesz, Cat. Dipt., vol. 4, p. 19, 1909.— Verrall, Brit. Flies, 



vol. 5, p. 463, 1909.— Pleske, Konowia, vol. 9, p. 166, 1930.— Sack, Die 



Fliegen, vol. 98, p. 20, 1936. 



Type locality: Lapponia Umensi (Sweden). 



Discussion: Species of group ii. This species has been recorded 

 only from Scandinavia, but, on the basis of specimens before me, this 

 form occurs also in the vSwiss Alps. These specimens are from St. 

 Moritz, Switzerland, July 27, 1902 (Oldenberg, EIS, DEI), and were 

 mixed with other specunens from the same locality determined by 

 Sack as zonatus Erichson. In comparing these with specimens of the 

 Nearctic melampus Loew, no morphological differences were found, 

 and melampus specimens fit the descriptions of nigripes given by Sack 

 (1936, pp. 16, 20) and Zetterstedt (1838). For a further discussion of 

 these species' relationships, see the notes under eugonatus Loew. 



