232 NORTH AMERICAN EUMASTACINAE (oRTHOPTERA) 



Length Length Length Length Length Length 



of of of of of of 



9 body antenna pronotum cephalic median caudal 



femur femur femur 



Del Monte, California 15.5 1.9 1.8 2.6 2.4 8.6 



Del Monte, California 16.8 2.2 2 2.7 2.6 9.2 



Roscoe, California 15.2 1.7 1.9 2.1 2.2 9.3 



Roscoe, California 16.9 1.7 2.1 2.3 2.6 9.8 



Echo Mountain, Cali- 

 fornia 12.5 — 1.6 2.1 2 8.6 



Echo Mountain, Cali- 

 fornia 15.4 2 2.1 2.7 2.7 10.2 



Mount Lowe, Cali- 

 fornia 16.5 2.6 2.6 3.4 3.5 12.2 



Mount Lowe, Cali- 

 fornia 19 2.2 2.5 2.9 3.1 12 



Nellie, CaUfornia 18 2.1 2.3 2.8 3.1 11 



Color Notes. — This form shows several leading types of basic coloration, each 

 combined, in greater or lesser degree of intensification, with paired dark 

 lateral bars, these latter varying in shade from dark olive-gray to fuscous- 

 black. The base color appears to be entirely independent of the barring and 

 probably is less genetic than the pattern. In its extreme condition the barring 

 consists of broad postocular bars involving almost all of the genae, the lateral 

 lobes of the pronotum, the pleura and sharply defined broad areas on the sides 

 of the abdomen, extending to the apex of the latter. With this is rarely as- 

 sociated a narrow medio-longitudinal l:)ar on the head or pronotal disk. The 

 lateral bars reduce down to faint indications limited to the postocular region, 

 the dorsal section of the lateral lobes of the pronotum and lateral sections of the 

 meso-and metanota. Two pairs of oblique, contrasted dark annuli are evident 

 on the caudal femora in the intensive pattern. 



The base color ranges from almost uniform fuscous-black, with no distinctive 

 pattern except pale buffy areas on the ventro-caudal sections of the lateral 

 lobes of the pronotum, to clove brown above, with the face, portions of 

 the lateral lobes, pleura and Umbs natal brown and army brown to drab and 

 even pale buff, the caudal femora with striking very pale annuU contiguous to 

 the usual dark ones, the caudal tibiae blotched and mottled with fuscous-black. 

 In the greater majority of all the specimens the whole coloration has a "pepper 

 and salt " frosting or ticking. The gray tendency of the base color rims through 

 olive-gray, in its extreme condition wath hoary white ventrad on the lateral 

 lobes, on the pleura and considerable of the caudal femora. The red tendency 

 runs to a imiform kaiser bro'mi or, In combination with a maximum development 

 of the dark lateral bars, to naples yellow on the dorsum of the head, thorax and 

 abdomen with the head and Umbs washed to a variable degree with dragon's- 

 blood red or pale brick red. Rarely this latter condition has the Umbs naples 

 yellow as well as the dorsum of the body. Numerous combinations of the base 

 colors here given are exhibited by the material, but the more striking types 

 have been mentioned. 



