238 PROCEEDINGS OF THE ACADEMY OP 



June 2Qth. 

 The President, Dr. Hays, in the Chair. 



Twenty members present. 



The following gentlemen were elected Members of the Academy : 

 Dr. Henry B. Butcher, Dr. Geo. Guier, Mr. Henry C. Carpenter, Mr. 

 S. Raymond Roberts and Mr. Jason L. Fenimore. 



The following were elected Correspondents : George A. Otis, M. D. 

 Mr. William H. French, and M. de Caligny of France. 



On favorable report of the Committee, the following was ordered to 

 be published : 



Descriptions of some new species of Diurnal IEPIDOPTEKA. 

 BY TRYON REAKIRT. 



1. PlERIS YREKA, DOV. Sp. 



Size and form of Pieris rapx L. 



Male, upper side white, base sprinkled with black atoms, extending along 

 the costa of the primaries as far as the end of the cell ; a narrow black termi- 

 nal line at the apex, and below this a few scattered black specks ; a rounded 

 black spot on the medio-superior interspace, midway between the cell and the 

 margin. Secondaries with a small black spot on the costa, at two-thirds its 

 length from the base ; fringes white, expanse 1-88 inches. Underneath, the 

 apex of the primaries is pale ochrey yellowish ; an additional small black spot 

 is in the medio-inferior interspace, otherwise as on the upper surface. Second- 

 aries pale ochrey yellowish, thickly strewn with grayish or greenish-brown 

 atoms, especially condensed towards the base ; costa yellowish orange. 



Body above black, with scattered whitish hairs ; below white. Antennae 

 black, ringed with white; club tipped with white. 



Female differs in having a large triangular apical patch, brownish-black, of 

 which the lower portion is densest, upon the primaries, and in the enlargement 

 of their central black spot, and also in that of the costal one upon the second 

 aries. 



Below, the primaries as in the male, the hind wings much more yellowish. 



Hab. California. Coll. Tryon Reakirt. 



2. Pieris castoria, nov. sp. 



Size and form of Pieris oleracea, Harris. 



Male, upper side pure white, inner half of costa of primaries, and base of both 

 wings, strewn with a few dark atoms ; a rounded black spot in the medio- 

 superior interspace of the fore wings, situate as in the preceding species ; no 

 other markings; fringes white, expanse 2 2-12 inches. 



Underneath immaculate white ; a faint yellowish tinge on the apex of the 

 primaries, and along the costa of the secondaries. 



Body black, with whitish hairs below; antennas black, with incomplete 

 white annulations interrupted above. Club yellowish, or yellowish brown at 

 tip. 



Hab. California. Coll. Tryon Reakirt. 



3. Pieris occidentals, Reakirt. 



Reakirt, Proc. Entom. Soc. Philada., 1866 (ined). 



Hab. California, Rocky Mountains. Coll. Tryon Reakirt. 



I have an example of Pieris Sisymbrii, Boisd, from Northern California, of 

 which the ground color is a very clear lemon yellow ; it differs, however, in no 

 other respects from types of the same. 



4. Callidryas thaur'cma, nov. sp. 



Male, very similar on the upper side to C. Uilaria; the irregular outline of 



[June, 



