Vol. XXX] ENTOMOLOGICAL NEWS. 37 



streaks on thorax. Abdomen black with fine yellow segmental lines ; 

 a broak yellow mark before end" [/. e. on segment 7]. 



CORDULEGASTERINAE. 



Cordulegaster godmani McLachlan. Purulha, forest, July 10, 

 I ,J I 9 "in cop." 



Aeshninae. 



Anax amazili (Btirmeister). Cayuga, June 2, stormy night, at 

 light, 1 9 ; August 24, at light, 1 9 . 



In the key to the species of Anax in the Biologia volume, 

 page 176, I stated for amazili "Superior frontal marking a 

 triangular black spot, no dark ring," by way of contrast with 

 Junius and zvalsinghami. In well-colored individuals there is 

 on each side, right and left, of the triangular black spot and 

 separated from it by a yellow line, a triangular blue spot, as 

 Hagen (1861, 1867), Brauer (1866) and Martin (1908) have 

 stated. Occasionally these two blue spots are not visible, as 

 in a Costa Rican female before me ; in other cases, as in the 

 Cayuga female of June 2, the blue has become a dark brown, 

 although the two spots are not united anteriorly and hence 

 form no ring as in Junius and walsinghami. Still my state- 

 ment of 1905, quoted above, is incomplete and hence a little 

 confusing. It may be bettered by inserting after "a triangular 

 black spot:" "usually with a separate triangular blue (some- 

 times brown) spot to right and left." 



The capture of these two females at light is interesting. 



Aeshna cornigera Brauer. Chejel, June 26, 1 $ , "almost entirely 

 black ; some pale greenish markings on thorax laterally." Purulha, 

 forest, July 10, i $ , "frons and base of abd. turquoise blue. Broad 

 green lateral oblique stripes on thorax. Fine broken green transverse 

 lines on abd." Antigua, 5500 feet, November 24, i ^ , 1 9 . Volcan 

 Santa Maria, November, i $ . 



Aeshna multicolor jalapensis (Williamson). Santa Maria, 5500 

 feet, June 13, 1 $. Volcan Santa Maria, October 31, 1 9. 



Aeshna virens Rambur. Cayuga, on veranda, September 5, 1 9 • 



Gynacantha trifida Rambur. Cayuga, at dusk, April, 1 9 ; forest, 

 -August 23, 1 9 , and 27, 1 $ . 



Gynacantha septima Selys. Cayuga, at dusk, April, 1 $ ; forest, 

 September 16, 1 9. The male has the anal triangle 3-celled. 



Gynacantha mexicana Selys. Cayuga, at dusk, June 3, 1917, 1 $. 



Gynacantha tibiata Karsch. Cayuga, forest, August 30, 1 9. 



