1904,] NATURAL SCIENCES OF PHILADELPHIA. 39 



Form very slender. Head moderately elongate, subequal; eyes 

 subovate, projecting considerably beyond the head ; antennse with the 

 basal joint longer than broad, depressed, subequal in width. Prono- 

 tiim about twice as long as broad. Mesonotum very elongate, sub- 

 equal, surface with but few small tubercles. Metanotum (with median 

 segment) not quite three-fifths the length of the mesonotum; median 

 segment about two-fifths the metathoracic length. Abdomen slender, 

 elongate, exceeding the thoracic segments in length ; ninth dorsal seg- 

 ment tectate, compressed, apex very deeply and narrowly emarginate; 

 supra-anal plate not visible; cerci of moderate length, subequal, in- 

 curved; subgenital plate short, not extending beyond the base of the 

 supra-anal, apex very broadly and evenly rounded. Limbs very slen- 

 der, the anterior and posterior pair subequal in length, median pair 

 shorter. Anterior femora equal to the pronotum, mesonotum and 

 metanotum (without median segment) in length, depressed, rectangular 

 in section, supplied with a median subbasal dentiform process on the 

 inferior surface; tibise very slightly exceeding the femora in length, 

 subtrigonal in section ; metatarsi about equal to the remaining tarsal 

 joints in length. Median femora slightly exceeding the mesonotum in 

 length, subtrigonal in section, inferior surface with a median subbasal 

 process as on the anterior femora, genicular lobes acute; tibiae very 

 slightly exceeding the femora in length, subtrigonal in section. Pos- 

 terior femora slightly exceeding the middle of the fourth abdominal 

 segment,^ sectionally subquadrate, the usual subbasal process present; 

 tibise exceeding the femora by about the length of the median segment, 

 sectionally subtrigonal; metatarsi equal to the remaining tarsal joints 

 in length. 



General color dull brownish-green, becoming rather pale green on 

 the limbs; head, antennse, pronotum, under surface of the abdominal 

 segments, and the genicular regions very dull obscure claret. Pu- 

 bescence on the tarsal joints golden yellow. 



Measureynents. 



Total length, 71 mm. 



Length of pronotum, 3.5 



Length of mesonotum, 16.5 '' 



Length of metanotum (with median segment) 9 



Length of abdomen, 38.5 



Length of anterior femora, 23.5 



Length of anterior tibise, 25.5 



Length of median femora, 16.5 



Length of posterior femora, 23 



' Not including the median segment. 



