No. 39] ODONATA OF CONNECTICUT: GOMPHIDAE 157 



around the lateral ocelli and ends of the postocellar ridge, incon- 

 spicuous and without a tubercle at middle. Compound eyes sep- 

 arated by 1.5 mm. measured on the transverse epicranial suture. 

 Occipital margin elevated at middle, and rounded, the sides sloping 

 gently to the compound eyes. 



Thorax : as in the male. 



Abdomen : lateral marks more distinct than the male and form- 

 ing an obscure lateral strip on each side of terga 2-8; length of 

 terga 7, 8, 9 and 10 measured on the dorso-meson 3.6, 2.6-3, 2.6, 

 and I mm.; vulvar lamina (Fig. 20, No. 8) consisting of two 

 pointed lobes, contiguous on the meson and measuring about 

 .8 mm. in length by .4 in width ; ventral margins of the 9th terga 

 separated by .8-1.4 rnm. Superior anal appendages slightly more 

 than I mm. in length, sharply pointed at tip. 



Measurements : total length, male 48, female 46 mm. ; length 

 of abdomen, male 34-36, female 33-36 mm. ; length of hind wings, 

 male 26-27, female 27-28 mm. ; width of hind wing, male 7.5-8, 

 female 7.5-8 mm. 



Connecticut. — Colebrook, 19 June, 1920 (P. G.) ; Litchfield, 26 June, 

 2-j July, 1909 (L. B. W.). 



New England. — May 15-July 13. 



Group 3 ViLLOsiPES-PALLiDUS Gfoup — Pale Thorax Types 

 Gomphus bcrealis Needham 



Bulletin of the New York State Museum, 47: 454: 1900. 



Adult, male. — Color dark brown to black and greenish yellow 

 or olive. 



Head : face including labium, labrum, clypeus and front, except 

 a black preocellar stripe, pale; ocellar area black; occiput pale, 

 postgenae black, sides pale. 



Thorax : pronotum with 3 yellow spots and yellow caudal mar- 

 gin; color pattern of mesothorax and metathorax as in Fig. 22, 

 No. 16, the mesepimeral stripes usually connected with the pale 

 collar ; streak above the mesopleural suture usually short ; met- 

 episterna more or less infuscated, the amount of infuscation vari- 

 able ; metepimera pale. 



Abdomen: terga 2 and 7 with a pale mesal line, which is 

 obscured toward the caudal margins of 5, 6 and 7; terga 8 with 

 a mesal spot on cephalic margin; terga 8, 9 and 10 measured on 

 the dorso-meson 2.8, 2.5, and i mm. in length respectively; 

 accessory genitalia as in Fig. 21, No. 10. 



Female. — Sides of abdominal segments i and 2, pale and 

 obscure pale stripes on 3-7 inclusive, the latter remote from the 

 margins; lateral margins of terga 8 and 9 and venter of segment 

 ID pale; vulvar lamina. Fig. 20, No. 9, one-third to nearly one- 

 half as long as the ninth sternum, the plates sub-triangular and 



