LcucorrJiinia. 6/ 



Occiput hairy, hind margin straightish. ProtJwrax 

 rather small, collar-like, edged behind with a ring of 

 hairs. Mcso-tlioracic spiracles rather conspicuous, pointing 

 somewhat backwards. Lci^s long ; front ones iO'5mm., 

 hind i6'5mm., rather faintly banded with two darker 

 brown bands on femora ; distal end of tibia; and of 

 third tarsal joint dark ; tibi;t, especially fore and mid 

 ones, hairy. Wiiig-cascs about 5mm. long. Abdomen 

 with a pale mid-dorsal line, somewhat raised at the 

 posterior part of the segments; about r5mm. away 

 on each side a line of dark brown suffused spots, 

 preceded in each case b\' a white one ; another row 

 of white spots, less distinct, outside these ; and on the 

 lateral carina,' a whitish spot at the sutures between 

 the segments. Segment 9 rather truncate behind, 10 

 small. Pronounced latcrtxl spines on segments (S and 9, 

 especially on the latter. Upper anal appendage 

 triangular, sharp, as long as segments 9 and 10, 

 whitish mid-dorsally ; laterals about half the length of 

 upper, lower two about as long as upper, rather darker 

 and narrower. Under side of abdomen with a mid- 

 ventral and two lateral (one on each sidej dark brown 

 bands separated and bounded on the outside by four 

 conspicuous pale ones. (From a nymph-skin obtained 

 at Rannoch, in June, 1S98, and given to the author by 

 Mr. C. A. Briggs, who found it at a very small pool, 

 thus proving that it breeds in pools. Perhaps it does 

 not breed in the neighbouring lochan.j 



Date. 



This insect has been found on the wing from the end 

 of May, in Yorkshire, till July or August in Inverness. 



F 2 



