20 FILIP TRYBOM, TROLLSLÄNDOR (ODONATER). 
Recapitulation. 
Dragon flies (Odonata) were collected on the shores of Jenisei 
river from latitude 58” 21' to 69" 25' north. The, following new 
species or remarkable varieties were obtained. 
Lib. dubia. Some females similar to L. rubicunda in being more or 
less destitute of the brownish spots, characterizising dubia, at the 
bas of the wings. On the other side some females of L. rubi- 
cunda, having those spots, were brought home. 
Som. sibirica u. sp.:?2 A. Colour of S. arctica; abdominal appendages 
and general appearence of S. flavomaculata. Allied to S. atro- 
virens but smaller and differing to the abd. appendages. 
Som. Sahlbergi n. sp. A and Y. OClosely allied to S. alpestris but 
easy to destinguish by the abd. appendages of the male (fig. 1.) 
Som. Theeli nu. sp. 9. This species almost agrees in colour with 
IS. alpestris, but the abd. appendages (fig. 2 a and b), the vulvar 
lamina (c) and the veins of the triangel of the fore wings (d) 
are good characters. The area above the triangel on the left 
hind wing (not on the right one) was furnished with a trans- 
verse vein. 
Cord. cenea. Females of a smaller size than european ones. One 
female with an internal triangel on the right posterior wing. 
En. cyathigerum. Most of the specimens, brought home, resembling 
»race?» boreale. 
Agr. Hylas n. sp. &. Allied to A. concinnum but of a larger size; 
the 1 and 2 abdominal segments of a different coloration (fig. I a 
and 6), the 3 one on the dorsal side with the apical fourth part, 
the 4 with the apical third part hastated; 13—14 postcubital 
crossnervules on the fore wings, 12—-13 such ones on the hind 
wings; thorax beneath light bluish with black stripes. 
ÅAgr. concinnum. Al of the three obtained specimens being of a 
remarkable small size. One of the females is like the North- 
american »race?» interrogatum in having the side stripes on the 
dorsum of the thorax interrupted, forming an ! turned up and down. 
