334 ENTOMOLOGICAL NEWS. [July, 'lO 



tii and alaskanus, both of which are rare in collections, were 

 in the exhibition. All the specimens were secured by Dr. 

 Skinner except the Cyphoderris, which was taken by Prof. 

 Stewardson Brown. 



Mr. Laurent exhibited the egg, larva and imago of Gas- 

 tropacha americana and said the larva wonderfully mimics its 

 surroundings. 



Mr. Matthews showed specimens of some rare Australian 

 species of Lepidoptera such as Papilio laghaisci, Liphyra 

 brassolis and Zcuscra boisduvalii. 



Mr. C. T. Greene reported the following Diptera as having 

 been taken this year : Neoascia distincta Will. Malaga, New 

 Jersey, April 3rd, and Syrphus diver sipes Macq., Castle Rock, 

 Pa., April loth. Both species were taken by Mr. C. T. Greene. 



HENRY SKINNER, Recording Secretary. 



A meeting of the Entomological Section of the Academy of 

 Natural Sciences of Philadelphia, was held December 23, 1909. 

 Mr. Philip P. Laurent, Director, presiding. Eleven persons 

 were present. The following persons were elected officers to 

 serve for the year 1910: Director, Philip Laurent; Vice- 

 Director, Henry W. Wenzel ; Treasurer, E. T. Cresson ; Con- 

 servator, Henry Skinner ; Secretary, E. T. Cresson, Jr. ; Re- 

 corder, Henry Skinner; Publ. Committee, E. T. Cresson and 

 E. T. Cresson, Jr. 



HENRY SKINNER, Recorder. 



A meeting of the Entomological Section of the Academy of 

 Natural Sciences of Philadelphia was held May 26th. Mr. 

 Philip Laurent, Director, presiding. Twenty-two persons 

 were present. 



Dr. Philip P. Calvert gave an informal account of his re- 

 cent entomological researches in Costa Rica. Mrs. Calvert 

 and he arrived in that country May i, 1909. and left it May 

 9, 1910. In a brief sketch of the physical features of Costa 

 Rica, mention was made of the considerable difference in ele- 

 vation between the coasts and the central region, the abundance 

 of rivers, the sharply-marked division of the year into wet 

 (May to November) and dry (December to April) seasons 

 on the Pacific slope while on the Atlantic side the dry season 

 is not so pronounced, one effect of this contrast being con- 

 spicuously shown in the much greater abundance of epiphytes 



