THE I mm \ ri RE STAT] OV THE 0D02S \l A. 27 



second : last joini longer ; a series of black spots on each side of the 

 of abdomen. 



Tlic imago is not known. I think it may be perhaps E. Selysii. 



There is n nearly full-grown nympha, locality unknown, in alcohol, and 

 some similar ones from"ditch at Legs Hill. B. II. W. and C. E.,Ma} 



1859," the latter Er the Peabody Museum, which cannot be separated from 



these 113 mpha skins. 



14. EPITHEC'A LIBERA. I. 



IV. Fig. 1. 



Cordulia libera Selys, Syu. Cordul., p. 29, no 



One nympha skin and the imago raised from it. .Tune 6, 1873, in Portland, 

 Mi'.. h\ \\. T. Jones. A 3 ounger nympha, 10 mm., from Chebacco I .:■ k • ■ . M 



Length, 17 mm.; breadth. 7 mm. 



Body nearly naked ; head diamond-shape, a little narrower than the ab- 

 domen; convex between the eyes, which are conical, rounded on lop; 

 transverse suture about straight, part before dark brown, a little roughened ; 

 part behind with a yellow band along the suture ; with some very small 

 spines and longer scattered hairs; sides sloping to the narrower occiput, 

 which is slightly notched; forehead smooth, anterior margin straight, with a 

 fringe of longer hairs ; antennae comparatively thin, longer than the palpus ; 

 the two basal joints very little thicker than the seta, first joint short, enlarged 

 at tip; second a little longer, elongate ovoid; seta with joints of nearly 

 equal length, except that the first is longer ami the second shorter than the 

 others; basal part of mask a little longer than its anterior breadth, produced 

 in a more than right angle ; palpus equilateral, interlocking edge with nine 

 Hat teeth; the whole mask sprinkled with very fine brownish dots. Pro- 

 thorax narrower than occiput, side angles triangular; sides of thorax with 

 a blackish longitudinal band and a quadrangular spot below near the wii 

 wing covers reaching 6th segment; the hind wings with a black band on 

 the costal spaces as far as the nodus ; abdomen dilated as far as the last 

 segments, which are sloping; somewhat flattened, on each side with a row ot 

 ill-defined paler spots ami with a pale band on the middle line : side border 

 sharp, with long hairs on the last segments: lateral spines on segments 8 

 and 9, flat, sharp, incurvate. very short on 8th; on 9th about one third of 

 length of seo-menf ; dorsal books small blunt tubercles on the end of segments 



