^-EscJnia. i8i 



pale elongated spot on each side of median line, and a 

 narrow pale band on hind angle, often scarceh' discernible. 

 Mask long, extending through middle legs, gradually 

 enlarged ; iVont border a little more than twice width 

 of base ; middle third of front border somewhat pro- 

 duced and rather widel\' cleft, with comb of hairs. J\alpus 

 broad, rounded at upper angle, and [MTxluced in \'er)- 

 short black teeth at lower angles ; dcnticulation beneath 

 discernible; moxable hook, reaching the base of opposite 

 one. Pfothorax as broad as back part of occiput, 

 rounded behind. Processes stout and blunt, not much 

 separated, anterior more contracted. (Fig. 19, No. 3). 

 Lco^s \er}' slender ; hind legs extending to ninth seg- 

 ment, ash-gra\- ; femora \\ith two pale rings. Jl'/z/o- 

 ursc's extending to middle of fil'th segment. Abdomen 

 short, stout, tapering from se\'enth segment ; dorsum 

 \'er\' con\ex, finel}- granulated as in A£. evaiiea, but with 

 whitish hairs ; colour grayish ; each segment with eight 

 darker imjjressed sjjots, four on middle and two on 

 each side near margin. Segments of nearh' equal 

 length, except tenth, which is half as long ; lateral 

 spines on segments 6 to 9 ; that of ninth nearl)- as 

 long as tenth segment. Inferior n/^pei/elages as long as 

 last two segments, triangular, sharp ; middle apjjend- 

 age notched, not so long as inferiors ; lateral superiors 

 rather more than half length of middle one, cylin- 

 drical, slender, and sharp. Male projection conical, 

 rather sharp, nearly as long as lateral superiors. Male 

 genital parts slightly marked ; female valve extending 

 somewhat bcw'ond ninth segment. (L. Cabot, " Immature 

 State of the Odonata," Part II. Cambridge, U.S.A., 

 1881.) 



