330 MANTIDAE AND PHASMIDAE OF PANAMA 



shorter than the fourth; ventro-external margin armed with five 

 spines, of which the first is well separated from the others, the 

 first four rather small but increasing regularly in size distad, 

 the fifth very large. Musonia Stal 



A A. Size large, very elongate, juxta-ocular portions of vertex 

 well raised and angulato-convex. Cephalic tibiae with ventro-' 

 internal margin armed with eight spines, regularly increasing in 

 size distad, except that the fifth is very slightly shorter than the 

 fourth; ventro-external margin armed with five spines, the 

 interval between the first and second being only slightly greater 

 than the succeeding intervals, the first four spines very small 

 and increasing only slightly in size distad, the fifth very large. 



Macromusonia new genus 



We note that Macromusonia is very closely related to Para- 

 musonia Rehn, of which cubensis (Saussure) is the type. That 

 genus differs only in having the vertex with dorsal margin 

 convex between the eyes and therefore more elevated mesad 

 than elsewhere (in Musonia and Macromusonia the dorsal mar- 

 gin of the vertex is transverse between the raised juxta-ocular 

 portions) and with no juxta-ocular elevation, while the cephalic 

 tibiae have the ventro-internal margins armed with eleven to 

 twelve spines which increase regularly in size distad.^ 



Musonia surinama (Saussure) 



1869. Th[espis] surinama Saussure, Mitth. Schweiz. Ent. Ges., in, p. 70. 



[cf, Surinam.] 

 1894. Musonia femorala Saussure and Zehntner, Biol. Cent.-Amcr., Orth., 



I, p. 166, pi. X, figs. 20 and 21. [ 9 ; Chontales, Nicaragua.] 

 1911. M[ionyx] fuscescens Chopard, Ann. Soc. Ent. France, lxxx, p. 333. 



[cf , 9 ; St. Laurent, La Forestiere and Nouveau-Chantier, French Guiana.] 



After careful comparison of the numerous females of this 

 species before us, with the original description of fcmorata 

 Saussure and Zehntner, we find so exact agreement that we are 

 ol)liged to place that name in the present synonymy. It is 

 posHi])]e that the type specimen may have ])een incorrectly 

 labelled, as the species is not represented in (lie large Costa 

 Rican series before us, though we have a male lalx'iled "Central 

 America," collected by the Kev. T. Heyde. 



^ Comparison is niade with material of cubensis in the Philadt'lphia Collec- 

 tions, from Cuba. 



