230 PROCEEDINGS OF THE ACADEMY OF [June, 



Color Notes. — General tone of more or less abraded specimens 

 varying from cinnamon to ochraceous, the abdomen generally seal- 

 brown, but in a few specimens 51 the abdominal coloration is no 

 darker than the general tone. Eyes varying from broccoli to clove- 

 brown ; palpi varying in similar fashion. Lateral lobes of the pro- 

 notum wholly seal-brown, the dorsal line of the color mass more 

 sharply defined in some than in other specimens. Abdominal 

 segments in the majority of specimens narrowly margined with 

 whitish; ovipositor ferruginous; cerci buffy, darkening distad. 

 Limbs buffy, 52 but as the overlying scales are more generally present 

 on the limbs than on the rest of the body and in color are raw umber, 

 the general shade is dark, with, however, a more or less distinct paler 

 pregenicular annulus; caudal tibiae with the scales colored in such a 

 fashion that there is a broad median pale annulus and another 

 extremely narrow one immediately distad of the genicular extremity, 

 the remainder of the tibial scales being seal-brown. In the specimens 

 sufficiently abraded on the dorsum to enable one to ascertain the 

 color of the scales, it is seen that pale buff-gray is the covering color, 

 while in some specimens regularly placed patches of umber scales 

 are found on the margins of the abdominal segments. 



Distribution. — From Southern New Mexico (Alamogordo and 

 Organ Mountains) west to Southern California, north as far as the 

 southern slopes of the Sierra Madre (Claremont), thence south to 

 the Cape region of Lower California. Nothing whatever is known 

 of the distribution of the species in northern Mexico, and we have 

 no record of its occurrence in Arizona. The highest elevation (of 

 which we have record) at which the species has been taken is Drip- 

 ping Springs, N. M., at an altitude of 5,800 feet above sea level. 



Biological Notes. — The only knowledge concerning the habits of this 

 species is the fact that the Alamogordo specimen was taken by the 

 authors from a dead yucca. 



Remarks. — The present species is one which varies much in size, 

 New Mexican individuals surpassing all others in this respect except 

 Sierra Laguna, Lower California, specimens. Such variation is not 



51 These specimens have not had their coloration lightened by alcoholic 

 immersion. A number of other individuals which have at some time been 

 immersed in alcohol are equally pale on the abdomen, but we have not considered 

 such specimens in drawing up the above notes. 



62 In specimens which have been in alcohol the cephalic and median limbs are 

 much darker, seal-brown in fact, but this does not seem to be the natural colora- 

 tion. 



