NEW NORTH AMERICAN CHIRONOMIDAE 
BY 
OSKAR AUGUSTUS JOHANNSEN 
Since the publication of the paper on Chironomidae in the New 
York State Museum Bulletin 86 (Entomology 23), 1905! there have 
appeared several papers on this family of flies in which some 
changes in classification are proposed, making it desirable to give a 
review of this work. The most important of these papers is J. J. 
Kieffer's Chironomidae in Genera Insectorum, 42zme Fascicule, 
1900, in which several of the older genera have been subdivided. 
The necessary changes to bring the key of Bul. 86 (page 89) down 
to date are given on pages 264 and 270 of this report. 
Subfamily CERATOPOGONINAE 
Group Ceratopogon, Bul. 86, p. 92, line 25 
1 Last tarsal joint with empodium, either distinct or developed pulvilli- 
form, wings usually hairy, femora without spines, tarsal claws equal 
j Empodium well developed, almost as long as the claws, these without 
SOLA Ohad ~eia poets AAs Reese ee See Ee eI Ceratopogon’ 
jj Empodium not so distinct, less than half as long as the claws, the 
latter with setae at the base, hind metatarsus always longer than 
the following joint, wings often spotted or mottled (Oecacta Poey 
1S DIOWVO? 2 SWMOMAIM)) ooo00cs00s000000000000 000540000 Culicoides 
ti Last tarsal joint without empodium, wings usually bare 
2 Wing with RF, distinctly separated from the posterior branch of the 
radius and not connected with it by the cross vein like Rots. Bezzia’® 
7) Wing with Reis present, crossvein like 
ko Media ssimplert: Jenene oe oon a ee eae ea ee Brachypogon 
kk Media with two branches 
Pp Hemorawithoutestouteaspines onthe tinGensid clement er 
Johannseniella Williston 
ll Some or all femora spinose beneath 
m Neither fore nor hind femora much thickened...... Palpomyia 
mm Either fore or hind femora thickened 
MD WOKS wSMOA, WMANKEMEC! ooccocccccccd000 000000 oNNNC Heteromyia 
(ore iain! Simei, tanelkenedl . 5 5 5 coc cccc 0000000005060 Serromyia 
1 All reference to this bulletin will be given in this paper as ‘Bul. 86.” 
2If the names published in the earliest work of Meigen (1800) are accepted by ento- 
mologists then Tendipes, Pelopia, and Helia will replace respectively Chironomus, Tany- 
pus, and Ceratopogon. 
3 The homology of the wing venation is incorrectly given on pl. 17, fig. 13-16, in Bul. 86. 
What is marked R445, should be marked M, 49; in fig. 15 Ro43 should be marked Ro45; in 
fig. 16 Rg should read Rgi5, and Res should read R445. 
264 
