1913. 



NATURAL SCIENCES OF PHILADELPHIA. 



327 



Fig. 13. — Pachyossa 

 'signata n. gen. and 

 sp. Dorsal out- 

 line of head and 

 pronotum. (X 3.) 



nearly twice in the length of the same; apex well rounded. Pro- 

 sternum transversely carinate with a compressed 

 trigonal projection mesad; interspace between 

 the mesosternal lobes four times as broad caudad 

 as deep, the lateral margins diverging, obliquely 

 rounded; interspace between the metasternal 

 lobes even more decidedly transverse than that 

 l)etween the mesosternal lobes. Cephalic and 

 median limbs strongly villose. Caudal femora 

 one and two-thirds times the length of the 

 pronotum, pattern of the pagina moderately 

 regular; caudal tibiae subequal to the femora in 

 length, armed on the external margin with six 

 spines; caudal metatarsus subequal to the 

 remainder of the tarsus in length; all of the 

 caudal limb strongly and thickty villose. 



General color clove brown, passing into Vandyke 

 brown mottled with wood brown on the limbs; 

 ventral surface mummy brown, becoming wood 

 l:)rown on that aspect of the limbs. Head, 

 pronotum, and pleura with the tubercles varied with pale brown and 

 blackish, so that the general color is modified in a "pepper-and-salt" 

 fashion; lower part of the face with much wood bro^\Ti; eyes raw 

 sienna; antennae with the joints blackish, each joint margined distad 

 with ochraceous. Tegmina with the base color seal bro^vTi, with a 

 reticulate pattern of wood brown and ecru drab formed by the 

 coloring of groups of veins, both longitudinal and transverse, the ecru 

 drab predominating toward the apex and the costal margin; anal 

 field with a proximal ovate spot of clear orpiment orange, which is 

 completely hidden when the tegmina are in repose. Wings strongly 

 infu.'Scate with clove brown proximad, this passing gradually into the 

 pale creamy -white of the apex, where the veins alone retain the color 

 of the proximal portion. Limbs mottled and blotched with the 

 general colors, the caudal femora with two irregular pale transverse 

 bars, which are V-shaped on the external face. Hairs of the entire 

 body straw yellow. 



Measurements. 



Length of body 28 . mm. 



Length of pronotum 8 . " 



Greatest dorsal width of pronotum 7. " 



Length of tegmen 21 . " 



Greatest width of tegmen 6. " 



Length of caudal femur 13.2 '* 



