REHN AND HEBARD 233 



The most brilliant coloration is exhibited by three females from Roscoe, 

 California, which were taken on Eriogonum polifolium, the pink flowers of which 

 were in blossom. These individuals have the dorsum buffy, heavy lateral bars 

 and the limbs reddish to a variable degree. The Del Monte series shows the 

 uniform reddish (kaiser brown) type and the uniform blackish-fuscous type 

 numerous, the broad, continuous, lateral dark bars rarely indicated in adults. 

 The relatively limited material from high elevations (5000 feet upwards) shows 

 no reddish tendency, grayish or blackish tones predominating. 



Distribution. — The typical form of the species ranges as far 

 north as Paso Robles Hot Springs, in San Luis Obispo County, 

 Cahfornia, south at least as far as NeUie in the Agua Tibia 

 Mountains, San Diego County, east at least as far as the Cahon 

 Pass, between the San Gabriel and San Bernardino ranges, and 

 the western foot of the San Jacinto Mountains at Coahuila, 

 Riverside County, California. Material from Del Monte, 

 Monterey County is virtually intermediate between M. c. 

 californica and M. c. tamalpaisensis. The distribution of M. 

 c. californica in all probability covers the coast ranges of south- 

 central and southern California and the San Gabriel range, and 

 is known to extend into suitable areas of the lower country. 

 It will, doubtless, be found to occur in the San Bernardino and 

 San Jacinto Mountains, the Cuyamaca Mountains and other 

 ranges of San Diego and Riverside Counties, California, and 

 northern Lower California. 



Its vertical distribution extends, in southern California, from 

 as low as 750 to 900 feet at Verdugo, and 825 feet at Roscoe, up 

 to 5200 feet at Nellie and about 5600 feet on Mount Lowe. At 

 Del Monte it occurs but slightly above the sea-level, on what is 

 really a coast shelf. In southern California its occurrence out of 

 the mountains propef appears to be governed })y limited areas of 

 suitable environment. 



Biological- Notes. — This interesting form is a chaparral in- 

 habitant, never really abundant, and in actions it is extremely 

 nimble and vigorous. The chaparral components from which it 

 has been taken are: chamisal {Adenostoma fascicidatum), man- 

 zanita {Arctostaphylos tomentosa) and Nuttalls' Ceanothus 

 (Ceanothus cimeatus). (See plate XIV, figs. 1 and 2). It has 

 also been taken on Eriogonuyn polifolium in a desert wash at 

 Roscoe (pi. XV, fig. 1). The usual location of the insect is 

 perched in an exposed position on the upper portions of the 



TRANS. AM. ENT. SOC, XLIV. 



