1905.] NATURAL SCIENCES OF PHILADELPHIA. 401 



Carrillo, Costa Rica. [Hebard collection.] Three males, four fe- 

 males. 



Monte Reclondo, Costa Rica. January, 1903. (C. F. Underwood.) 

 [A. N. S. Phila.] Two males, four females. 



Escazu. Costa Rica. January, 1903. (C. F. Underwood.) [A. N. S. 

 Phila.] One male. 



The variation in color noticed in the original description is apparent 

 in the series studied. 



AMBLYTROPIDIA Stil. 



1873. Ambhjtropidia Stal, Recensio Orthopterorum, I, p. 107. Type. — A. 

 ferruginosa Stal. 



Amblytropidia costaricensis Bruner. 



1904. Ambhjtropidia costaricensis Bruner, Biol. Cent.-Amer., Orth., 11, p. 66. 

 [GreytoA\Ti, Nicaragua; San Jose, Costa Rica.] 



Monte Redondo, Costa Rica. January, 1903. (C. F. Underwood.) 

 [A. N. S. Phila.] One immature female. 



ORPHULELLA Giglio-Tos. 



1894. Orphidella Gidio-Tos, Boll. Mus. Zool. Anat. Comp. Torino, IX, No. 

 184, p. 10. 



Included punctata (De Geer), iniricata Stal, gracilis and elegans 

 Giglio-Tos, of which the first may be taken as the type. 



Orphulella punctata (De Geer). 



1773. Acrydium punctatinn De Geer, Al^ni. Hist. Ins., Ill, p. .503, t. 42, fig. 12. 

 [Surinam.] 



Tarbaca, Costa Rica. November, 1902. (C. F. Underwood.) 

 [A. N. S. Phila.] One female. 



Guatel, Costa Rica. April, 1902. (C. F. Underwood.) [A. N. S. 

 Phila.] One female. 



These specimens are referred here with some little doubt, but no ma- 

 terial difference is detected on comparison with a female of 0. punctata 

 from St. Vincent, West Indies. 



Orphulella costaricensis Bruner. 



1904. Orphulella costaricensis Bruner, Biol. Cent.-Amer., Orth., II, p. 82. 

 [San Jose, Costa Rica.] 



Tarbaca, Costa Rica. November, 1902. (C. F. Underwood.) 

 [A. N. S. Phila.] One female. 



Guatel, Costa Rica. April, 1902. (C. F. Underwood.) [A. N. S. 

 Phila.] Three males, eighteen females. 



Monte Redondo, Costa Rica. January, 1903. (C. F. Underwood.) 

 [A. N. S. Phila.] Eight males, five females. 



This species is extremely variable in color as noticed by Bruner, 



