90 BULLETIN 190, UNITED STATES NATIONAL MUSEUM 



April 23, 1927, July 1926 (F. M. Jones), February 25, 1919 (H. S. 

 Barber), Biscayne Bay (Mrs. A. T. Slosson), Coronado Beach, March 

 1929, Daytona Beach, October 1938; galls on spiny-leaved scrub oak, 

 Monticello, June 1928; on scrub oak, Gainesville, April 15, 1930; on 

 water oak, Longwood, April 10, 1930 (Engelhardt). 



The prolonged season of emergence does not prove that there are two 

 broods annually. Larvae in various stages of growth have been noted 

 throughout the year. Only galls well along in development, but with the 

 tissue still alive, serve for occupancy. The presence of larvae is indicated 

 by frass and, by spots that are soft under pressure. The borers are 

 abundant locally and are easily reared in numbers. Coinhabitants in the 

 galls very often are ants. This association appears to be harmonious 

 as long as the silk-lined galleries and pupal cases of the lepidopterous 

 borers remain intact. 



SYNANTHEDON DECIPIENS DECIPIENS (Hy. Edwardi) 



Plate 22, Figures 136, 137 



Aegeria decipiens Hy. Edwards, Papilio, vol. 1, p. 197, 1881. — Beutenmuller, Bull. 



Amer. Mus. Nat. Hist., vol. 6, p. 367, 1894. 

 Aegeria imperfecta Hy. Edwards, Papilio, vol. 1, p. 198, 1881. — Beutenmuller, Bull. 



Amer. Mus. Nat. Hist., vol. 4, p. 173, 1892. 

 Aegeria nicotianae Hy. Edwards, Papilio, vol. 1, p. 202, 1881. 

 Sesia decipiens Beutenmuller, Bull. Amer. Mus. Nat. Hist., vol. 8, p. 141, 1896; 



Mem. Amer. Mus. Nat. Hist., vol. 1, pt. 6, p. 300, 1901. 

 Synanthedon decipiens McDunnough, Check list of the Lepidoptera of Canada and 



the United States of America, pt. 2, No. 8734, 1939. 



Male. — Labial palpi golden yellow, black on the inner sides. Head 

 black, collar yellow. Thorax black with a posterior, yellow, transverse 

 band and a yellow patch on each side beneath. Abdomen coppery black, 

 somewhat swollen centrally and with segments 2, 6, and 7 narrowly ^nded 

 with yellow above, segment 4 broadly banded with yellow above and 

 beneath ; anal tuft wedge-shaped, edged with whitish at tip. Legs broadly 

 banded with yellow and blue-black. Forewing narrow, costa heavily 

 scaled, black and orange scales being intermixed ; veins black, interspaces 

 from outer margin streaked with orange, leaving a small vitreous area 

 before, and another narrow long one beyond, the red, black-edged discal 

 mark; fringes lustrous brown; underside heavily shaded with golden 

 yellow. Hindwing transparent, narrowly margined; discal mark very 

 small, orange. 



Female. — Differs from the male in having broader wing margins and 

 denser orange shading between the veins, with a corresponding reduction 

 in the vitreous areas before and beyond the discal mark, which is bright 

 red, only barely edged with black. Abdomen with segments 2 and 6 

 narrowly banded with yellow above, band on segment 4 above and beneath 

 twice as broad as those on segments 2 and 6; anal tuft short, rounded. 



