246 NORTH AMERICAN EUMASTACINAE (oRTHOPTERA) 



Measurements {in millimeters) 



Length Length Length Length Length Length 



of of of of of of 



zn body antenna pronotum cephalic median caudal 



O femur femur femur 



Strawberry Vallej-, California, 



type 10.8 2.4 1.8 2.6 2.7 8 



Strawberry Valley, California, 



paratype 9.6 2 1.7 2.4 2.3 7.9 



Strawberry Valley, California, 



paratype 9.7 2.2 1.9 2.6 2.5 7.2 



9 

 Strawberry Valley, California, 



allotype 17.2 2 2.5 2.8 2.8 9.5 



Strawberry Valley, California, 



paratype 16 1.9 2.3 2.6 2.6 8.5 



Strawberry Valley, California, 



paratype 18 2 2.6 2.7 2.8 9.6 



Coahuila, California, paratype 18.1 2 2.5 2.7 2.7 9.9 



Color Notes. — General dorsal coloration of male varying from dark olive- 

 brown to wood brown, pas.sing to buffy brown on dorsum of abdomen. In the 

 same sex the face, ventral, or at least ventro-cephalic, portion of the lateral 

 lobes and pleura are light ochraceous-buff to light ochraceous-salmon, rarely 

 this area on the thoracic segments is more tawny than the face. Irregularly 

 defined broad lateral postocular bars of blackish fuscous are indicated on the 

 head, pronotum and mesonotum, these frequently incomplete or merely out- 

 lined on the lateral lobes of the pronotum. Sterna of the male sex tawny to 

 dresden brown, passing to Isabella color on the venter of the abdomen. Ce- 

 phalic and median limbs of male tawny, mottled with mummy brown to nearly 

 clear ochraceous-tawny, with faint tibial mottlings. Caudal femora of male 

 dull tawny to clear tawny, hea\aly yet obscurely triannulate with fuscous; 

 caudal tibiae honey-yellow to olive-ocher, clouded to a variable degree with 

 fuscous, darker distad, spines black tipped. 



General coloration of female ranging from prout's brown, mottled with a 

 heavy yet poorly defined overcasting of mummy brown, through a dull chest- 

 nut brown phase to one with its whole coloration ohve-ocher. One female 

 paratype has the face and the dorsal siuf ace of the thorax, abdomen and caudal 

 femora pale chartreuse yellow, the lateral aspects and remainder of the body 

 snuff brown to bister, the latter on the dorso-lateral hues of demarcation. 

 Faint traces of the dark postocular bars of the male are noticeable in all the 

 females except the uniformly pale form. In the female sex the barring of the 

 caudal femora is obscurely indicated. The caudal tibiae are mottled as in the 

 male in all but the bicolored specimen, which has them uniform clay color, the 

 spines black tipped. The pale female has all the femora appreciably but in- 

 definitely barred, as described in the male sex. Eyes of both sexes cinnamon- 

 brown and dresden brown, mottled and sprinkled with fuscous. Antennae of 

 both sexes buckthorn brown to mars Ijrown. 



Distribution. — This interesting genus and species is known from 

 only two localities. Strawberry Valley, San Jacinto Mountains, 



