1905.] NATURAL SCIENCES OF PHILADELPHIA. 439 



other on the ridge of the metathoracic episternum. Abdomen tawny 

 ohve. Limbs dull clay color with a slight greenish tinge, the caudal 

 femora washed with cinnamon on the dorsal face, genicular arch raw 

 umber; distal portion of the caudal tibise and caudal tarsi washed with 

 bistre, spines tipped with blackish. 



Measurements. 



Length of body, 22.2 mm. 



Length of pronotum, 5.9 '^ 



Greatest width of pronotum 4 " 



Length of tegmen, 6.9 " 



Greatest width of tegmen, 4 " 



Length of caudal femur, 13.5" 



The type is unique. 



SCHISTOCERCA St&l. 

 Schistooerca pyramidata Scudder. 



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

 Phila.] One female, one nymph. 



Tarbaca, Costa Rica. December, 1902. (C. F. L'nderwood.) 

 [A. N. S. Phila.] One female, one n3aiiph. 



Pozo Azul de Pirris, Costa Rica. August, 1902. (C. F. Underwood.) 

 [A. N. S. Phila.] Four females. 



Monte Redondo, Costa Rica. December, 1902, and January, 1903. 

 (C. F. Underwood.) [A. N. S. Phila.] Two males, two females, eight 

 nymphs. 



San Jose, Costa Rica. September and December, 1902. (C. F. 

 Underwood.) [A. N. S. Phila.] Five males, three females, one nymph. 



This series is inseparable from Cuernavaca (topotypic) specimens. 

 Schistooerca malaohitioa n. sp. 



Type: 9 ; Turrialba, Costa Rica. (Schild and Burgdorf.) [U. S. 

 N. M., No. 8,175.] 



■ Allied to S. alutacea and venusta, but distinguished by the more flat- 

 tened disk of the pronotum and the striking and peculiar coloration. 



Size rather large ; form as usual in the genus. Head with the occiput 

 and vertex very slightly rounded longitudinally, rather flattened trans- 

 versely ; interocular space very distinctly greater than the width of the 

 frontal costa; fastigium broad, obtuse-angulate, subhorizontal, mar- 

 gins very slightly elevated, rounding into the frontal costa without 

 angle; frontal costa subequal in width, continued to the clypeus, 

 slightly expanded ventrad, sulcate at and ventrad of the ocellus, 

 strongly punctate dorsad; eyes elongate subreniform, slightly longer 



