KELLICOTT. 39 



Carunculatum is equally or even more abundant 

 than civile especially in the northern parts of the state 

 where lakes and reservoirs abound. It has been noted 

 in myriads about Mercer county reservoir and at 

 Sandusky Bay in July. At the latter place civile be- 

 comes common and practically disappears while car- 

 unculatum is numerous. It remains late in the season 

 after most other species of the genus have disappeared. 



Enallagma hageni, Walsh. 



Length: of abdomen d 13, ? 24; of hind wing of 

 c?16, 9 17. 



The male is blue and black ; head black above, 

 while the genae, labrum, antech'peus lower border of 

 frons, and long and narrow postocular spots are blue; 

 prothorax black with posterior edge pale blue, mid- 

 dorsal and humeral stripes black; legs bluish, femora 

 and tibiae black outwardl3% tarsi dark at the articula- 

 tions, pterostigma black. The dorsum of abdomen is 

 black, as follows: a square basal area on 1 ; a round 

 apical with ring on 2, apical one-third on 2—4, one- 

 half of 5-6, all of 7 except interrupted basal ring and 

 all of 10, including the appendages. 



The tenth ring of the male is deeply excavated, the 

 superior appendages are half as long as 10 depressed, 

 quadrangular seen from above, apical side slightly con- 

 cave with a soft tubercle projecting slightly beyond, 

 making the outline somewhat convex, inner side with 

 broad process at base, then concave to the angle which 

 projects slightly inward, the outer angle is slightly 

 rounded. On the upper surf ace there is a diagonal ridge 

 from the inner apical angle ; the inferiors are longer 

 than superiors and forcipate ; in profile the depressed 

 superiors are curved upwards somewhat apically ; the 

 inferiors are straight on the upper border, apex slightly 

 up-curved, lower border hrst convex, then concave then 



