158 CONNECTICUT GEOL. AND NAT. HIST. SURVEY [BuU. 



an acute median notch between ; occipital ridge depressed at center 

 (Fig. 21, No. 21). 



Measurements : total length, male 47, female 44-49 mm. ; length 

 of abdomen, male 34, female 32-35 mm. ; length of hind wings, 

 male 25, female 29 mm. ; width of hind wing, male 8, female 

 8.5 mm. ; length of stigma, female 3.5-4 mm. 



One specimen without definite record in collection of the Con- 

 necticut Agricultural Experiment Station. 



Gomphus furcifer Hagen 



Bulletin de rAcademie royale . . . de Belgique (2), 46: 458: 1878. 



Adult, male. — Color yellow and black or dark brown. 



Head : face yellow ; postgenae black above, pale below. 



Thorax: pronotum with 3 pale spots on mesal lobe; caudal 

 margin pale ; front and hind femora pale beneath ; meso- and 

 metathorax (Fig. 22, No. 14) pale with short dorsal stripe on each 

 mesepisterna next the dorsal carina, and another just above the 

 mesopleural suture; neither of the stripes on mesepisterna reach 

 the wing bases ; mesopleural suture infuscated ; a patch of infus- 

 cation on shoulders of the metepisterna. 



Abdomen: with pale stripes on dorso-meson of 1-7 inclusive; 

 indistinct or wanting on 8, 9 and 10; lateral margins of terga 

 greenish, the color reduced to elongate spots on 4-6; superior 

 anal appendages yellow, showing a tooth in lateral profile. 



Female. — Abdomen with pale stripes on dorsum of 1-7 inclu- 

 sive, and broad (about 2 mm. wide) pale margins sometimes 

 enclosing a black spot on 3-7, or with a dark stripe dividing the 

 pale marks, connecting with the dark of the caudal margins ; a 

 broad pale lateral stripe on 8 and 9 not remote from the margin, 

 segment 10 pale on dorsum, sides black; vulvar lamina as shown 

 in Fig. 20, No. 10. 



Measurements : total length, male 47, female 50-54 mm. ; length 

 of abdomen, male 34-35, female 36-38 mm. ; length of hind wings, 

 male 27-28, female 30-31 mm.; width of hind wings, male and 

 female 9-9.5 mm. 



Female described from specimens in the collection of P. P. 

 Calvert, Philadelphia. One female taken by Mr. Bromley at 

 Webster Lake, Mass., near the Connecticut line. 



New England. — May 29-July 8. 



Gomphus pallidus Rambur 

 Histoire naturelle des insectes. Neuropteres, 163 : 1842. 

 Nymph. — Labium shown in PI, v, Fig. 6. 

 Adult, male. — Color olive with pale brown markings. 

 Head : face including labium, clypeus and front, pale ; occiput 

 pale. 



