330 THE CANADIAN ENTOMOLOGIST 



fringed with spines along anterior margin and with hairs along 

 posterior; rather light in colour, with 2 zigzag brown marks about 

 middle and brown areas at distal and proximal ends. Tibiae 

 banded about the middle with brown. Tarsi with distal and proxi- 

 mal ends dark. 



Ecdyuriis pullus, sp. nov.* 



This is a large form, compared with the two previous species. 

 The nymphs were found along the very stony, exposed shores of 

 small islands three and four miles out in the open bay. The col- 

 lections are dated June 23rd and July 6th, and the rearings July 

 2nd. A few imagos were captured June 27th. 



Male imago: 



Measurements — Body 10-11 mm.; wing 11 mm.; setae 22 mm.; 

 fore leg 11-12 mm. Face pale, slightly tinged with brown along 

 the carina. Dark brown on dorsal surface of head between eyes. 

 Pronotum dark brown; m.esonotum lighter; a dark brown line on 

 each side of prothorax extending forward from base of fore wing; 

 other dark brown marks at bases of wings and legs. Dorsal surface 

 of abdomen dark brown, somewhat lighter laterally toward an- 

 terior margin; ventral surface light in colour. Genitalia of the 

 usual Ecdynrus type. Legs light in colour, dark at joints. Tarsi 

 of fore legs in order of increasing lengths, 1, 5, 4 (3 and 2) equal. 

 Wings with longitudinal and cross veins brown and very slightly 

 darkened in apical costal region. 



Nymph: (PI. V, fig. 10.) 



Measurements — Body 12 mm.; setae 15 mm. Head brown, 

 with a colourless area on each side from eye to lateral margin of 

 head, and three light dots between eyes; slightly fringed with 

 hairs along anterior and lateral margins, and a light area about 

 the middle of each half of pronotum. Mesonotum darker, with 

 numerous light spots. Each segment of abdomen brown; 1-8 have 

 six light spots, and 4-8 have the two spots near the median line 

 fused, forming a large rectangular area; segment 9 with only four 

 light spots; segment 10 entirely brown. Gills comparatively 

 small, lamellae oval. Setae of about equal size, with each two al- 

 ternate segments brown; sparsely fringed at joints, and outer 

 *This species was listed on p. 247 as Ecdyunis grandis, sp. nov. 



