1906.] NATURAL SCIENCES OF PHILADELPHIA. 39 



one submesad and another nearer the base; caudal tibiae dull olive 

 with a faint proximal lighter annulus, the spines and spurs tipped 

 with black; tarsi soiled greenish with the proximal part of the first 

 joint, the whole second and the tip of the third blackish. 



Measurements. 



Length of body, _ 17.7 mm. 21 mm. 



Length of pronotum, 3.2 " 4.3 " 



Length of tegmen, 14.5 " 18.3 " 



Length of caudal femur, 10.7 " 13 " 



A paratj^ic series of six females has also been examined (February 

 13, 15 and 27, March 17 and 21, 1905). This series shows that the 

 species varies somewhat but not greatly in size, and the coloration 

 presents a considerable range of base tones and finer definition of 

 markings without much modification of such pattern as is found in 

 the types. Two specimens are touched with green as in the ? type, 

 but both have it weaker on the head and tegmina, and the lateral 

 carinse are broadly marked with the same tint on the metazona, and the 

 caudal femora have distinct oblique blackish bars. Other specimens 

 have the lighter general colors replaced by ferruginous or wood 

 brown, giving a warm rufescent type or a rather sandy form, while 

 the femoral bars are present as variations irrespectively of color form 

 All the females except the type have the lateral carinse marked with 

 lighter on the metazona. One of the rufescent type has the dark colors 

 all blackish, presenting a strong contrast with the other ferruginous 

 patches. 



SOYLLIN^. 



After examining individuals of all the genera of the Scyllinoe except 

 Eupnigodcs McNeill and Zapata Bruner, the following arrangement of 

 the genera seems to be desirable as it appears to express their natural 

 relations : 



Boopedon Thomas. 



Euplectrotettix Bruner. 



Scyllina Stal. 



Eupnigodcs McNeill. 



Zapata Bruner. 



Psoloessa Scudcler, 



Stirapleura Scudder. 



Ageneotettix McNeill. 



Aulocara Scudder. 



Ligurotettix McNeill. 



