1910.] NATURAL SCIENCES OF PHILADELPHIA. 281 



Slight differences in ocellar form, occasional appearance of an 

 accessory spine on one or both of the dorso-internal margins of the 

 caudal tibia? and slight differences in the separation of the tibial 

 dactyls and in the width of the distal joint of the caudal tarsus, 

 cannot be used as features to separate species of this genus, as dis- 

 cussed above in the treatment of vicinus. 



Measurements (in millimeters). 



c£_ 9_ 



type. Paratypes. Allotype. Paratypes. 



Length of body 28.7 26.4-34.4 29.7 26.5-35.5 



Length of pronotum 9.3 8.8-11.3 9.3 8.5-10.3 



Width of pronotum 189 7.3 6.4-8.9 7.1 6.6-8.3 



Length of tegmen 14.7 14. 6-17. 8 15.2 15-19.2 



Length of win- 19.6 19.6-24.3 21.7 20.5-26.1 



Longest tibial dactyl 3.6 3.3-4 3.1 140 3.1-4.1 



Length of caudal femur . 10.3 10-11.7 10.6 10.2-12 

 Length of terminal tarsal joint of 



caudal tibia 2.6 2.3-2.7 2.7 2.6-2.8 



Width of same 8 .7-1 .8 .8-. 9 



Coloration. — Normal condition (type, allotype). General colora- 

 tion pinkish buff. Head with occiput including raised portion of 

 inter-ocular space blackish brown, a brief space of the same color 

 back of the eyes, but separated from them by a narrow interval of the 

 pale general coloration. Pronotum with dorsum marked with an 

 oval of blackish brown, this interrupted cephalad and mesad by 

 rounded incursions from each side of the general pinkish buff colora- 

 tion, these cephalic indentations weakly connected, the margins of the 

 dark area concave in their caudal fifth. Tegmina and wings buffy 

 with veins darker. Caudal femora of general coloration, but with 

 all except the proximal fourth of dorso-external portion suffused with 

 a darker shade. Abdomen dark above, pale below (in life shining 

 grayish below, contrasting strongly with vicinus, which in life has this 

 portion of the body shining cinnamon buff). 



An intensive coloration is found in numerous specimens in which 

 the darker markings are all deeper and more extensive, the whole 

 dorsal surface of the pronotum being blackish brown, with the 

 exception of four small pale spots in apposition to the rounded 

 incursions of paler coloration as found in the normal condition. 



139 Owing to the impossibility of determining the lateral margins of the dorsum 

 of the pronotum in the present genus, this measurement indicates the absolute 

 width of the pronotum. 



140 The minimum measurements for these dactyls represent specimens in 

 which these claws are worn down and blunted by much use. This is true of the 

 present specimen. 



