REPORT OF THE STATE ENTOMOLOGIST 1901 891 



914 Libellula pulchella Drury 



915 L. b a s al i s Say 



916 Celithemis eponina Drury 



917 Micratbyria berenice Drury 



918 Plathemis 3 - m a c u 1 a t a DeG. 



919 Tetragoneuria cynosura Say 



920 Aescbna const ricta Say 



921 Boyeria v i n o s a Say 



922 Cordulegaster erroneus Hagen 



923 En all ag ma hageni Walsb 



924 Argia putrida Hagen 



925 Le'stes u n g u i c u 1 a t a Hagen 



926 L. rectangular is Say 



927 Calopteryx maculata Beauv... 



may flies, Epbemerida 



928 Ephemera ?simulans Walk. 



929 Pentagenia vittigera Walsh 



930 Callibaetis ferruginea Walsh 



BRisTLETAiLs, spRiNGTAiLS, Thysanura 



931 Bristletail fishmoth, Thermobia f u r n o r u ni Rov. 



PROTECTIVE MIMICRY (932-46) 



Collection prepared and mounted by the Denton Bros., Welles- 

 ley Mass. 



932 D a n a i s t y t i a Gray (India). This insect is protected 

 from the birds by an unpleasant odor or taste, and it is mimicked 

 by 933, which is not distasteful to birds. 



933 Papilio agestor Gray (India). This insect departs 

 widely from the general appearance of most of its close rela- 

 tives. Its resemblance to 932 undoubtedly protects it from 

 molestation by birds. 



934 Hebomoia glaucippe Linn. (China). Under sur- 

 face; note its resemblance to the skeleton of a leaf. 



935 H y p o 1 i m n a s misippus Linn. (India). The female 

 mimics 937, which is protected from birds by an unpleasant odor 

 or taste. Compare with the male, 939. 



936 Erebomorpha sp. (India). Note light and shadow 

 effect, which is probably protective. 



