48 ENTOMOLOGICAL NEWS. [M 



Doings of Societies;. 



'l'n i ENTOMOLOGICAL Socn IN or \V.\sn i \i , i < >.\, Nov. 12, is,S9. Mr. 

 Lugger rt ail some notes on "The migration of tin- Archippus butterlly." 

 ;nid gave an interesting study of their spring and tall nio\<-incnts. Ik- 

 noted similar migration in / '. <antni. Dr. Thaxter stated that In- had 

 found . I rc/i if>/>ns wintering along the- dull" of Mexico in vast num' 

 Mr. Howard read a paper on "A feu additions and corrections to S. ud- 

 der's Nomenclator /.oologicus." Mr. Marlatt ga\ e " Notes on the abun- 

 < lance of oak-feeding I .epido|)teroiis larva/ this fall," and mentioned tu el\e 

 species of Macrolepidopterous larva' taken in the conr.se of about an hour. 

 Mr. Schwar/ read a paper entitled, " Capritication," and Mr. Toun-. 

 paper on "The fall occurrence of /!i/>io and /->//Vy>///c.s." In disi iission on 

 the last ]>a|>er it was conceded that tin- autumnal occurrence uas d: 

 acceleration of development. \\'. H. F<>.\, M. D., Kec. 



ENTOMI >i.( I(;ICAI, SECTION, ACADKMV NATTKAI. SCIENCES <>i I'HII.A- 

 DKi.riiiA, Jan. 23, 1890. A meeting of this Section of the Acadeim uas 

 held January 23d, Dr. Geo. H. I lorn, President, in the (hair. Members 

 present: Messrs. McCook, Ridings, Martindale, Skinner, Calvert, l.ielieck, 

 Wells, \\'estcott and several visitors. Dr. Horn exhibited some drauings 

 illustrating points of interest in the comparative anatomy of the spe< ;< 

 the genus Cercyon, and stated that most of the species were either intro- 

 duced, or also found in F.urope. The classification of the species and 

 facts in their geographical distribution were discussed at length. Dr. 

 McCook exhibited the first volume of his new book entitled, " American 

 Spiders and their Spinning Work; A Natural Historx of the ( )rb\\ea\ in;^ 

 Spiders of the t'nited States." He i;a\e a resume of the \olume.and 

 also some interesting generalizations on the facts in their natural history. 

 On a (|iiestioii from one of the members Dr. McCook made some instruc- 

 tive remarks on Spiders as mathematicians. Dr. Skinner called ,;tt< ntii n 

 to the donations to the cabinet: Mrs. A. T. Slosson pres t nted a specimen 

 &i Ecpantheria dcnnilaia described by herself, from Florida; /.';>//./ niti^- 

 iliilcini and .Irgyiniis j'rig'a var. Sa^n; tuo rare species, from Colorado, 

 from Mr. Aaron; a type specimen of I'aniplnla .\a/;>>n and tuo exi l ; c 

 butterflies donated by Dr. Skimu-r. For the Recorder by I!. SKINNl 



Tnr AMERICAN FXTOMOLOCICAI, SOCIETY, |an. 23, [890. Al a busi- 

 ness meeting of the Society held alter the Section meeting, as abo\e, the 

 sum of $IOO was voted toward defiaying the expense ot the expedition 

 to Mexico to In mule i taken under the auspices o| the Acadeim ot Natural 

 Sciences and the direction of Prof. Angelo lleilprin. 1'rot. Heilprin 

 uas elected a member of the Society, and Dr. \Y. M.Croufoot a C( 

 sponrlent. 'I he President amioiini ed the death of Mr. I. I'lank Knight, 

 one of the oldest members ot the Society, and for a nnmbei of years 

 Recoidini; Secretary.- For the Secretary by H. SKINM K. 



I NTOMOLOCICAl \r\\-. lm (ittiiim \ w .ts ui.nl. il J;in . .; i . 



