814 PROCEEDINGS OF THE ACADEMY OF ' [XOV., 



Measurements. 



Length of body, 16.5 mm. 



Length of pronotiim, 4.5 



Length of tegmen, 33.5 



Greatest breadth of tegmen, 6 



Length of exposed portion of wing beyond tegmen, . 6.5 



Length of caudal femur, 22 



The type is the only specimen of the species seen. 



MICROCENTRUM Scudder. 



Microcentrum syntechnoides Rehn. 



1903. Microcentrum syntechnoides Rehn, Trans. Anier. Ent. Soc, XXIX, 

 p. 23. [Cuernavaca, Morelos, Mexico.] 



San Jose, altitude 1,160 meters. July, 1904. (At electric light.) 

 (P. Biolley; No. 41.) [A. N. S. Phila.] One male. 



This individual is inseparable from the type, and is separated from 

 M. lanceolatum by the slenderer tegmina and caudal limbs. 



SYNTECHNA Brunner. 



187S. Syntechna Brunner, Monogr. d. Phaneropt., p. 30, 347. 



Included olivaceo-viridis Brunner and tarasca (Saussure), of which 



the first may be considered the type. 



Syntechna caudelli Rehn. 



1901. Syntechna caudelli Rehn. Trans. Amer. Ent. Soc, XXVII, p. 224. 

 [Orizaba, Vera Cruz, Mexico.] 



San Jose. September and October, 1902. (C. F. Underwood.) 

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



Tarbaca. October and December, 1902. (C. F. Underwood.) [A. 

 N. S. Phila.] One male, one female. 



Escazu. November, 1902. (C. F. Underwood.) [A. N. S. Phila.] 

 One female. 



Not separable from the type specimen. Apparently separated from 

 tarasca by the form of the lateral lobes of the pronotum and the teg- 

 mina. 



LICHENOCHRUS Karsch. 

 1890. Lichenochrus Karsch, Entom. Xachr., X'S'I, p. 268. 

 Type. — L. crassipcs Karsch. 

 Lichenochrus marmoratus n. sp. 



Type: 9 ; Carrillo, Costa Rica. (Hebard Collection.) 

 Allied to L. modestus Brunner and brcvistylus Saussure and Pictet, 

 but differing from the former in the marmorate tegmina, the number 



