219 



basal joint somewhat brownish. Thorax black above; 

 the sides yellowish grey. Abdomen blackish with 

 a brownish side-streak; the three last segments more 

 or less reddish brown. In the male the posterior 

 margin of third segment above somewhat broadly 

 produced. Sixth segment cylindrical, narrow to- 

 wards the apex. 7th and 8th elongate, conical. 

 The apical half of 7th and 8th segments and a 

 broad band at the middle of the forceps blackish. 

 Branches of lower appendage short, somewhat poin- 

 ted ; the apex of upper appendage broadly but 

 not deeply incised. Titillators long, curved, pointed 

 towards the apex. Legs brownish yellow; the tip 

 of tarsal joints darker; the fourth and fifth almost 

 blackish. Claws serrate. Wings coloured and mar- 

 ked as in P. connexa with exception of the fact 

 that the two spots, that indicate the submedian 

 band sometimes are present also in the hindwing. 



Forewing 12 — 15 mm; hindwing 11 — 14 mm. 



Mus. Tiflis: 4 5. 18 9, Caucasus. 



The species is very similar to P. connexa, but 

 its shining black rostrum and its very long and 

 slender titillators are very good specific characters. 



16. P. davidi 5 Navas, Mem. Barcel., p. 415, 1908. 



17. P. sibirica n. sp. 



Head and antennae black; rostrum shining brown- 

 ish black. Thorax above, sides, coxae and abdo- 

 men black; the base of 7th and 8th segments 

 brown. Legs yellowish brown, apical tip of tarsal 

 joints dark brown. Claws serrate. Sixth segment 

 cylindrical, the apical margins somewhat incurved 

 laterally. Seventh segment conical, much broade- 

 ned towards the apex; 8th conical with the apex 

 above obliquely truncate. Branches of lower ap- 

 pendage long, flattened, almost straight and narrow 

 towards the apex, which is obtuse. Titillators deeply 



