270 J. A. G. REHN. 



Allied to B acolhua (Saussure) * but differing in the longer teg 

 mina, comparatively shorter anal area of the same, the more numer- 

 ous costal veins of the wings, the narrowly emarginate supra anal 

 plate, and the different coloration. 



Size rather small ; form elongate ovate. Head projecting considerably beyond 

 the pronotum, interspace between the eyes wide, about equalling that between 

 the antennal scrobes; eyes depressed. Pronotum transverse, subovate ; anterior 

 margin sub-truncate, the posterior distinctly so, the laterals broadly rounded 

 and somewhat depressed. Tegmina elongate, sub-lanceolate, the apex very nar- 

 rowly rounded; basal field occupying about one-third the length of the tegmen ; 

 marginal field with the veins more distinct toward the costal margin ; discoidal 

 vein straight and reaching to the apex of the tegmen; anal field equalling one- 

 third the length of the tegmen, suh-pyriform, anal sulcus broadly curved and not 

 sinuate. Wings with the costal veins ten in number. Supra-anal plate broadly 

 triangular, tumid, the apex narrowly and deeply sinuate. Subgenital plate 

 large, produced, the apex rounded and with a sinus which extends back half the 

 length of the plate. Cerci broad, depressed, exceeding the supra-anal plate 

 (broken). Anterior femora with the apical two-thirds of the anterior lower 

 margin finely spinose, the genicular spine slender. Median and posterior femora 

 with the genicular spines slender, the anterior margins with few or no spines. 

 Metatarsi of the posterior limbs not equalling in length the remaining tarsal 

 joints united. 



General color wood-brown, the lateral margins of the pronotum, basal and 

 costal sections of the marginal field of the tegmina pellucid. Vein pattern of 

 the tegmina pellucid ou the general tint. Eyes blackish brown ; interspace be- 

 tween the eyes with three blackish-brown and two creamy-white transverse bars. 

 Measurements : 



Length of body, 10.5 mm. 



Length of tegmina, ...... 9. " 



Greatest width of tegmina, .... 2.8 " 



Length of pronotum, 2.2 " 



Greatest width of pronotum 3.5 " 



Subfamily Epilamprin^e. 



Genus PARATROPES Serville. 



1839, Paratropes Serville, Orthopteres, p. 117. Type. — P. lycoides Serville. 



Pjiratrope* biolleyi (Saussure and Zehntner). 



1893, Paratropa biolleyi Saussure and Zehntner, Biol. Cent.-Amer., Orth., i, 

 p. 60. [Costa Rica ; Bugaba. Panama.] 



Six specimens; three males, three females; San Carlos and Tur- 

 rialba, Costa Rica. (Schild and Burgdorf.) [U. S. N. M] 



The variation in coloration in this series is quite interesting. The 

 central black portion of the pronotum in some cases is confluent 



* Revue et Magasin de Zoologie, 2e ser., xx, p. 99. 



