Triacantiiagyna anl Gynacantha 25 



Material examined: California (i male, i female, A. N. S.) ; Georgia, 

 Billy's Island, Okefenoke Swamp (June, 1912, i male, Cornell) ; St. Simons 

 Isl. (Sept., Oct., 1910, I female, Cornell) ; Florida, Lakeland (W. T. Davis, 

 November 8 and 10, 191 1, 2 females, W. T. Davis), Hastings (i female, 

 Cornell), St. Augustine (C. W. Johnson, i male, A. N. S.), Miami (i fe- 

 male, Cornell) ; Cuba, (Poey ,1858, i male, i female, M. C. Z.), Havana 

 (C. F. Baker, i male A. N. S.), Guanajay (Palmer and Riley, May t), i 

 male, i female, U. S. N. ]\I.), Baraca (Aug. Busck, September, 1901, i 

 mal-e, U. S. N. M.) ; Hayti (Dr. Abbott, i male, A. N. S.), Samana (Frazar, 

 2 males, i female, M. C. Z.), Tortuga, N. W. Hayti (W. L. Abbott, July, 

 1917, I female, A. N. S.) ; Jamaica, Bath (Mrs. Swainson, i male, i female, 

 A. N. S.). See also discussion above of specimens in the de Selys Collection. 



Triacanthagyna needhami ^lartin is a synonym of T. trifida unless an- 

 other species, which I have not seen, inhabits Florida. 



Triacaiithagyna satyrus Martin 



8, 9, under both titles as trifida, 25, 26. 



Abdomen male 42-43,? female 43; hind wing male 39-42,? female 41 ; 

 superior appendage male 6-6.3,? female 7.8; stigma front wing 3.6-4. 



Male. — Colored like T. ditderi except that on abdominal segment 3 AH^ 

 and PL are evident in the preserved material, and these spots may have been 

 present on segments posterior to 3 during life. Like T. ditzleri it is darker 

 than T. carihhea, and the following note was made of the La Fria male at time 

 of capture. Thorax and abdomen above black, not brown, and not paler 

 apically in the case of the abdomen. The frons above is dark to entirely 

 black. 



Dr. Calvert has kindly given me the following notes on the living colors 

 of ti^e Costa Rican male taken by him. Eyes brilliant green, darker above. 

 Frons dark brown with an ill-defined superior black spot. Clypeus and 

 labrum pale green, the latter more yellowish; labium pale brown but with 

 some pale green on the middle of the lobes. Thoracic dorsum dark brown 

 with a cuneiform, sharply marked, green antehumeral stripe, diverging from 

 above from its fellow of the opposite side. Sides of thorax bright green, 

 a narrow brown stripe on the first and second lateral sutures. Abdomen 

 black, the following green ; on i a transverse posterior dorsal, and on each 

 side a transverse posterior lateral stripe, the three not confluent ; on 2 each 

 side a transverse anterior stripe, a narrow median transverse line, three 

 posterior spots arranged in a transverse line, a mid-dorsal line and the 

 auricles ; on 3 a basal spot each side ; on 3-7 each with a pair of transverse 

 triangular spots just posterior to the transverse carina ; on 3-5 a pair of 

 transverse posterior spots. Pectus and under side of abdomen pale flesh 

 color. 



A teneral female from Rio Janeiro, Collection Ris, may belong to this 

 species, and the above measurements of the female are based on this speci- 

 men. Although pale and faded it has plainly the leg colors of the trifida 

 group and the third abdominal segment is constricted as in T. trifida. The 



