EPI1EMEK1DA. 
3 
Chitonophora Aroni Eat. 
In Esben-Petersen. Bidrag til en Fortegneise over arktisk Norges Neuropterfuuna. Tromsö Museums 
Aarshefter 25. 1907—08. 
The species was described by Eaton in the above uamed paper, where lie also gave a 
figure of genitalia of <5. As I bave at band riclier material of the species tlian Eaton, I will 
supplément his description and give a better drawing of the genitalia 
of the male. I bave compared the Russian specimens with the type- 
specimen, wbicli is placed in my collection, and tliey agrée very well. 
$. Imago (in alcobol). Head pitchy brown. The upper part of the 
eyes yellowish red, the lower part bluish black. Abdomen veutrally 
ligth with a faint brownish tinge; 8 tli segment, laterally, witli a brown 
black streak. Lengtb 10 mm.; anterior wing 10,5 mm.; setæ 13 mm. 
$. Subimago (dried). Thorax shiuing, reddish brown. Abdomen 
greyish black above, paler towards apex. Hind borders of segments 
pale. Venter ligth brown, greyish black towards side margins; the 
two hindmost segments, light brown without dark margins. Setæ Arom Ea p' en f 3 orceps and 
greyish black, basally reddish white, without distinct annulations. 
Legs, yellowish brown ; tarsi greyish black. Fore wings, faintly fumigated; hind wings with 
a pale yellow tinge. Subcosta and radius in the fore wings, greyish yellow; the other 
longitudinal main veins, pale greenish grey; cross veins indistinct. 
5 specimens, dried, collected 16.—17. VII 1909 at the Kara river, tundra of Kara, 
Gov. of Tobolsk. 
2 specimens in alcohol, collected 17. VII 1909 at the Kara river, tundra of Kara, 
Gov. of Tobolsk. 
Fig. 2 Chitonophora 
Fam. Baëtidae. 
Genus Baétis. 
Baëtis vernus. 
Curtis: Edinb. Phil. Mag. 1834. 
Eaton: A. Rev. Mon. of recent Epbem. or Mayfl. 1883—8. 
Many specimens present, some pinned, otliers in alcohol. 25. VII—23. VIII 1909 
at tundra of Kara, Ре -mal and Pyderata. 
Fam. Siphluridae. 
Genus Siphlurus. 
Siphlurus Linnaeanus Etn. 
Trans. Ent. Soc. London. 1871; Trans. Linn. Soc. London 1883—88; Tbe Ent. Montkl. Mag. Lond. 1901; 
Siphlurella Thomsoni Bengts. Lunds Univers. Arsskrift 1909. 
