KELLICOTT. 35 



This species is exceedingly abundant along the 

 marshy borders of Lake Erie. Common in June, by 

 the end of July pretty rare. The female oviposits 

 among floating Utricularia, algae and stems of aquatics. 



Enallagma aspersum, Hagen. 



Length : of abdomen cT 25, 9 24 ; of hind wing cT 

 and ? 18. 



Male, blue and black ; head black,, front and rear 

 blue, there is a black line at the base of the labrum and 

 a broader one between the frons and clypeus; prothorax 

 black, sides posterior border and triangular spot each 

 side the dorsum blue ; thorax blue with a moderately 

 wide mid-dorsal and humeral stripe black ; tarsi black, 

 legs striped with black and pale blue ; pterostigma 

 black ; abdomen blue with much black as follows : basal 

 quadrate spot on dorsum of 1, a shield-formed apical 

 one on 2 with apical black ring in connection with it, 

 apical two thirds of dorsum of 3, entire dorsum of 4-6 

 except narrow interrupted basal rings, basal half of 7 

 and dorsum of 10. Female has the blue lighter, large 

 ovate occipital spots, more black on the front of head, 

 prothorax with very little blue, dorsum of 1-10 more or 

 less black, apical blue ring on 1, basal interrupted ones 

 on 2-6, large oblong blue patch covering basal two thirds 

 of each side of dorsum of 7, and much smaller ones 

 similarly placed on 8. Pterostigma lighter. 



The superior appendages of the male are black 

 divaricate, nearly as long as 10, curved inwards with an 

 internal hooklet before the obtuse end ; in profile the 

 upper branch has the end rounded obliquely and capi- 

 tate; lower branch short, directed downwards and back- 

 wards, apexes turned inwards. Lower appendages 

 directed upwards, as long as the lower branch of 

 superiors. The appendages of the female are black 

 cylindrical, ends obtuse ; the valves are narrow, pale, 

 with the processes black. 



