1893-] ENTOMOLOGICAL NEWS. 243 



Gall. Length 11-13 mm.; width 3^-4^ mm. An elongated perfect 

 swelling of the stem-like shoots of the plant near their ends, the swellings 

 or galls being about three times as long as thick; subcylindrical, placed 

 always immediately above a joint, the lower end terminating at the joint 

 and subtruncate, the upper end sloping quickly from all sides into the 

 distal portion of the stem, which extends upward in a line with the longi- 

 tudinal axis of the gall. External surface of gall longitudinally finely 

 fluted or furrowed, being the exaggerated minute longitudinal flutings of 

 the stem of the plant developed in size by the process of swelling. Color 

 of dried galls greenish or straw colored, doubtless green in life. The gall 

 maker emerges always at the lower end, the exit hole in each gal'l being 

 just a little above the joint, about one-third the length of the gall or less 

 from its lower end. The dried gall grows a little less in diameter on its 

 lower portion, and especially so on the side containing the exit hole where 

 the adjacent portion is collapsed, doubtless due to drying. This gives 

 the upper end the greatest diameter. The dried galls are very hard, 

 somewhat woody; opening them discloses a central longitudinal channel 

 in which the larval occupant lived. 



Described from three old galls. I am inclined to regard this 

 as a cecidomyidous gall. 



-o- 



LIFE-HISTORY OF PAPILIO EURYMEDON Boisd. 



By HARRISON G. DYAR, Boston, Mass. 

 Papilio eurymedon Boisd. 



Egg- Nearly spherical, the base flattened, smooth, slightly 

 shining, yellowish green with a reddish shade on one side, which 

 causes it to resemble a miniature unripe wild coffee berry. Diam. 

 1.3 mm. Laid singly on the upper side of the leaves of its 

 food-plant. 



First larval stage. Head rounded, black, shining, partly re- 

 tracted under joint 2; width .8 mm. Body shaped as in other 

 species of Papilio, smaller centrally, with rows of spinose tuber- 

 cles, the row i very small, the subdorsal row ii large, especially 

 the ones on joint 2 on each side of the cervical shield, and on 

 joints 3, 4, 12 and 13; lateral row iii small. Color dark brown, 

 becoming later velvety-black, the cervical shield pale brown and 

 a white saddle-shape.d spot on joints 7 and 8. 



Second stage. Head slightly retracted under joint 2; rounded, 

 shining, dark brown, paler over the clypeus and mouth; ocelli 

 black; a few short hairs over the lower part of head: width 1.3 

 mm. The subdorsal tubercles on joints 2, n, 12 and 13, are 



