1913.1 



NATURAL SCIENCES OF PHILADELPHIA. 



447 



We here describe a female taken at Medellin, Vera Cruz, Mex., in 

 September, 1895, and in the Hebard Collection. 



Size very large for the genus; form compact; head rather large 

 and rounded but a little flattened in front. Maxillary palpi of 

 much the same form as in N. fasdatus. 

 Pronotum extremely transverse with 

 length contained nearly twice in greatest 

 (caudal) dorsal width, narrowing evenly 

 and considerably cephalad and with a 

 slight medio-longitudinal sulcus in the 

 cephalic portion. Tegmina nearly as 

 long as the caudal femora, apex of the 

 same dorsal in position, distal margin of 

 dorsal field rotundato-acute-angulate, lon- 

 gitudinal veins conspicuous, cross-veinlets 

 numerous and heavy, faint cross-veinlets 

 are also present in the intermediate 

 channel and traces of such are to be found 

 even between the veins of the lateral 

 fields. Wings very long, considerably 

 more than twice as long as the tegmina. 

 Ovipositor long though shorter than the 

 caudal femur, rigid, straight, apex of 

 same very narrowly sublanceolate, with 

 the margin of that portion formed by the FtiJ" l^oT^a^v ?e w'of 



ensts. 

 female. 



(X 3.) 



dorsal valves straight and armed evenly 

 with serrulations. Subgenital plate 



scoop-shaped, more elongate than in N. fasdatus, with a deep acute- 

 angulate emargination mesad. Caudal femora with greatest (meso- 

 cephalic) width contained over three times in the length.^^ Spines 

 of caudal tibiae very long, covered with long hairs and having the 

 margins armed with serrulations which are more than usually con- 

 spicuous. Caudal tibiae and tarsi heavily supplied with fine short 

 hairs. 



A male from Castillo, Nicaragua, taken in February, 1893, by 

 B. Shimek and now in the Hebard Collection ex Bruner, affords the 

 additional characters given below. 



Size considerably smaller; proportions much as in the female. 

 Tegmina transparent and when in repose the dorsal fields are hemi- 



^* In the Paraguayan specimens this character does not hold. 



