AMERICAN ORTHOPTERA. 6 



The specimens from Cuernavaca belong to the form which Saus- 

 sure calls variety C (Miss. Scient. Mex., Orth., p. 50).* 



IVyctibora noctivaga n. sp. 



Type, $ ; Machuca, San Juan River, Nicaragua. Collected by 

 Dr. J. F. Bransford (Acad. Nat. Sciences, Phila.) Allied to N. 

 mexieana and azteca, but much larger than either. From mexicana 

 it is distinguished by possessing an interspace between the eyes, and 

 by having the pronotum somewhat produced anteriorly. From 

 azteca it is distinguished principally by the very much greater size. 



Size large. Head small, posteriorly produced; eyes almost contiguous; an- 

 tenna? as long as the body, filiform, hirsute. Pronotum broad ; anterior border 

 somewhat produced, posterior border subtruncate ; entire surface velvety. Teg- 

 mina extending much beyond the apex of the abdomen, apically rotundate, 

 costal margin broadly rounded, surface velvety; marginal and discoidal fields 

 longitudinally veined; anal sulcus arcuate, deeply indicated; anal field semi- 

 ovate, subglahrous. Wings large, venation prominent. Limbs heavy ; femora 

 with the spines on the posterior margins much longer than those on the anterior 

 margins; anterior femora bearing thirteen small spines on the anterior margin, 

 basal section unarmed ; tibiae bearing prominent spines on all four margins. Ab- 

 domen heavy, the lateral margins of the four apical segments posteriorly prod need . 

 Supranal plate triangularly produced, apically emarginate, centrally ridged ; sub- 

 genital plate large, apex subtruncate;! cerci heavy, acuminate, about twice as 

 long as the supranal plate. 



General color brownish black, shading on the more translucent portions of the 

 tegmina to vinaceous, the " bloom" being a pale golden tint. Wings with the 

 discoidal and anterior fields vinaceous; the intercalcate, intermediate and pos- 

 terior fields transparent, the veins pale brownish. Abdomen with ferrugineous 

 patches on the lateral portions of the segments. Supranal and subgenital plates 

 brownish black, which general tint also colors the face, limbs and antenna?. 

 Measurements : 



Length of body 35 mm. 



Length of pronotum ...... 10 mm. 



Greatest width of pronotum .... 14 mm. 



Length of tegmina ...... 38 mm. 



Epilampra azteca Saussure. 



1868, Epilampra azteca Saussure, Revue et Magas. de Zool. (2e ser.), xx, p, 356. 



One female ; Motzorongo, Vera Cruz, Mexico. February, 1892. 



Collected by H. Osborn. (U. S. N. M.) 



Epilampra in ay a n. sp. 



Type, %> ; Machuca, San Juan River, Nicaragua. Collected by 

 Dr. J. F. Bransford (Acad. Nat. Sciences, Philadelphia). 



* Characterized as follows: "'Pronotum antice inter marginem anticum el 

 fasciam mediam rufo, pone fasciam fusco; ano et coxis apice rufis." 



f This plate is distorted at the apex and the true form is rather hard to ascertain. 



TRANS. AM. ENT. SOC, XXIX. NOVEMBER. 1902. 



