No. 4.] GYPSY MOTH — APPENDIX. 431 



appeared seemed to indicate the occurrence of three annual 

 broods. There are certainly two broods each year in this 

 region. The time at which different individuals of this spe- 

 cies appear varies to such a degree that imagoes may be 

 taken during every month from April to October, and only 

 by rearing can we get at the actual number of broods. As 

 recorded elsewhere, the writer has reared two broods be- 

 tween the latter part of June and the last of September. 



This species is known to feed upon the following larv« : 

 Porthetria cUspar Linn. (Fernald, Rep. Mass. St. Bd. Agr., 

 1892, p. 298), Euvariessa antiopa Linn., Hyphantria cunea 

 Drury, Aitacus promeihea Drury, Clisiocmnpa ainericajia 

 Harr., O. disstria Hbn., Paleacrita vernata Pack.; in con- 

 finement we have reared it upon Oimbex americana Leach, 

 Datana tninistra Drury, Attacus cecropia Linn., Telea poly- 

 phemus Cram., Anisota senatoria S. and A., Dryocampa 

 rubicunda Fabr., Tolype velleda Stoll, Rhynchagrotis alter- 

 nata Grote, Noctua c-nignim Linn. P. serieventris has been 

 known as imago to kill the nymphs of its own species and 

 of P. cynicus. In one case it was seen to feed on an imago 

 of Menecles insei'tus Say (Kirkland, "The Gypsy Moth," 

 Forbush-Fernald, 1896, p. 402). 



PoDisus SPINOSUS (Dallas). (Plate 1, fig. 4.) 



1851, Arma spinosa Dallas, List, part I., p. 98. 

 1856, Arma spinosa Fitch, 3d Rep. Ins. N. Y., p. 336. 

 1866, Arma spinosa Glover, Rep. U. S. Dep. Agr., p. 43. 



1868, Arma spinosa Walsh-Riley, Amer. Ent., vol. I., pp. 13, 14, 



37, 46, 59. 



1869, Arma spinosa Riley, 1st Rep. Ins. Mo., pp. 77, 89, 113. 



1869, Arma spinosa Walsh, Can. Ent., vol. II., p. 33. 



1870, Arma spinosa Riley, 2d Rep. Ins. Mo., p. 32. 

 1870, Arma spinosa Shinier, Am. Nat., p. 98. 



1870, Podisus spinosus Stal, Enum. Hemipt., part I., p. 51. 



1871, Arma spiyiosa Kridelbaugh, Rep. la. State Hort. Soc, 



pp. 167,168. 

 1871, Arma spinosa LeBaron, 1st Rep. Ins. 111., pp. 64, 66, 162. 



1871, Podisus spi7iosus Uhler, U. S. Geol. Surv. Terr. (Hayden), 



p. 395. 



1872, Anna spinosa Lintner, Ent. Contrib., I., p. 150. 



1872, ^rma spinosa Riley, 4th Rep. Ins. Mo., p. 20. 



1873, Arma spifiosa LeBaron, 3d Rep. Ins. 111., p. 184. 



1874, Arma spinosa Glover, Rep U. S. Dep. Agr., p. 123. 



