246 PHILIP p. CALVERT. 



Maine, Massachusetts, New Jersey, Pennsylvania (Yovk, etc.), 

 Georgia, Florida, Kentucky, Illinois (Miss Wadsworth, Hitchings, 

 G. Miller, Babcock.— W. I.). 



Subfamily 4. CORDULEGASTEKIN^. 

 16. Cortlulegaster Leach. 



Leach, Edinb. Encyc. ix, p. 136, 1815; Amer. ed. (Phila.) viii, pt. ii, p. 725, 

 1816. Selys, Mon. Gomph. p. 328, 1858. Thecaphora Selys, I. c. p. 319. 

 Cordulegai^ter inaciilatus Selys. 



C. m. Selys, Bull. Ac. Brux. xxi, pt. 2, p. 105, 1854 ; (2) xlvi, p. 689, 1878. 



Blackish brown ; the foUowiug yellow : rear of head, frons (except a very 

 narrow basal black band above), uasus, labrum (except an anterior brown border 

 and mid-basal spot), a cuneiform autehumeral stripe, wider above, two oblique, 

 lateral, thoracic bands and an intermediate line, two pairs (median and apical) 

 of spots on 2-5 and sometimes 8, one pair on 6-9. 



% . Sup. app. shorter than 10, straight, two strong inferior teeth, one basal, the 

 other submedian. Inf. app. one-third shorter, tip nearly as wide as base. Spines 

 of anterior row on second and third tibise replaced by knobs. 



9. Vulvar laminse long, projecting considerably beyond 10. 



Abd. % 47.5-53, 9 (incl. vulv. lam.) 55.5-60.5. H. w. % 37-41, 9 43-45. 



Nova Scotia, New England, Ontario, Maryland, Georgia. 



Cordulegaster erronens Hagen. 



a e. Hagen, Bull. Ac. Belg. (2) xlvi, p. 688, 1878. 



Blackish brown. Frons yellow above, black anteriorly. Labrum yellow, en- 

 tirely margined and almost crossed with black. Rear of head black. The fol- 

 lowing yellow: nasus, labium, occiput, a cuneiform antehumeral stripe, wider 

 above and divergent from above downwards, two broad, oblique, lateral, thoracic 

 stripes, two pairs of spots on 2-4, one pair on 5-8, anterior pair on 2-4 larger, 

 meeting (or almost so) on dorsal carina, so also tlie pair on .5-7. 



%. Sup. app. a little shorter than 10, two small inferior teeth, one basal, the 

 other submedian. Inf. app. one-fourth shorter, tip half as wide as base. Spines 

 of anterior row of second and third tibiae replaced by knobs. 



9 (not seen by the writer). Vulvar laminje long, projecting l)eyond 10. 



Abd. % 53-56, 9 64. H. w. % 44-47, 9 51. 



Pocono Mts., Pike Co., Pa., August, E. M. Aaron (A. E. S.) ; 

 North Carolina, Kentucky. 



Subfamily 5. AESCHNIN.E. 

 17. Epiiescliiia Selys. 



Selys, Proc. Bost. Soc. Nat. Hist, xviii, j). 36, 1875. Karsch, Ent. Nach. xvii, 

 p. 290, 1891. 

 i(l. EpiH^schua heros Fabricius. 



Aeschna h. Fabr., Ent. Syst. Suppl. p. 285, 1798, Hagen, Syn. Neur. N. A., p. 

 128, 1861. 



