No. 39] ODOXATA OF CONNECTICUT: GOMPHIDAE l6l 



Collected in Massachusetts by Bromley. Specimens in the 

 Museum of Comparative Zooloj^y also examined. 



Gomphus notatus Rambur 



Histoire naturelles des insectes. Neuropteres, 162: 1842. 



Nymph. — Labium shown in PI. v, Fig. 12. Lateral spines on 

 abdominal segments 6 to 9 inclusive. 



Measurements ; young nymph in the Museum of Comparative 

 Zoology: total length, 23 mm.; abdomen, 15 mm. Hind femora, 

 3 mm. ; segment 9, 2 by 2.5 mm. 



Adult, male. — Greenish yellow and black. 



Head : face, pale black as follows : nearly all of labrum except 

 a spot on each side ; anteclypeus ; a broad stripe on front, clypeal 

 suture (nearly i mm. wide) ; occiput pale, and most of postgenae. 



Thorax : pronotum with two very small spots on median lobe ; 

 meso- and metathorax mostly pale ; mesepisterna dark with two 

 nearly equal pale stripes ; interpleural and metapleural sutures 

 lined with dark (Fig. 22, No. 2); legs uniform dark brown; 

 wings clear. 



Abdomen : dark, with pale dorsal stripe on i and 2, and spot at 

 base of 3 ; spot on cephalo-lateral angles of 3 and a broad lateral 

 spot on 2 ; terga 4-7 inclusive, black ; 8 with broad lateral pale 

 stripe and small dorso-basal triangular spot; tergum 9 with pale 

 margins but no basal spot on dorsum; segment 10 dark, a trifle 

 paler on the margins ; anal appendages dark brown to black ; acces- 

 sory appendages of the second segment characteristic of the species 

 (Fig. 21, No. i). 



Female. — With more pale color than the male. 



Head: labrum mostly pale, the spots occupying most of it; 

 femora pale at base and below; abdomen with terga i and 2 

 broadly pale on sides, 3-5 inclusive with narrowly pale margins 

 which extend dorsad a distance of 1-2 mm. at base, and each with 

 an elongate spot a short distance above the margins ; terga 6-7 

 obscurely marked with pale color on margins ; 8 and 9 with pale 

 margins, the pale color i mm. wide; segment 10 dark above, pale 

 below; terga 3-8 with very small basal spots on dorso-meson. 



Measurements : total length, male 32, female 55 mm. ; length 

 of abdomen, male 37, female 42 mm. ; length of hind wings, male 

 30, female 35 mm. ; width of hind wings, male 8.5, female 9.5 mm. 



Described from specimens in collection of Dr. P. P. Calvert. 



Gomphus scudderi Selys 

 Bulletin de I'Academie royale . . . de Belgique (2), 35: 752: 1873. 

 Nyraiph. — Head : front margin of the mentum nearly straight, 

 with a sparse fringe of flattened scale-like hairs ; palpi with hook 

 of proximal segment incurved strongly, about at a right angle 



