442 PROCEEDINGS OF THE ACADEMY OF [Oct., 



found back from the shore, along the border of a field of dry grass near 

 high weeds, while in Santa Catalina Island it frequented dry places 

 among rocks and grasses. 



The range of this species in California is entirely west of the Sierras 

 and Sierra Madre and San Jacinto ranges, as far as known not occurring 

 in the true desert regions. Coquillett has recorded it from the San 

 Joaquin-Sacramento Valley from Redding to Merced and from Los 

 Angeles, while Baker has credited it to Claremont and Rehn to San 

 Diego. Stal described it from San Francisco. We have followed 

 Bruner 12 in placing this species in the genus Dissosteira, to which it 

 appears to be more closely related than to Spharagemon. 

 lactista gibbosus Saussure. 



This species is represented by a considerable series distributed as 

 follows : Tia Juana, August 16, one 9 ; Los Angeles River, Los Angeles, 

 August 24, two d\ three 9 ; Pasadena, August 1, twelve c? , seven- 

 teen 9 ; near Rubio Canyon, August 8, four cT , two 9 ; Echo Moun- 

 tain, 2,700 to 3,500 feet, August 8, two d\ 



There is considerable individual variation in size, this, however, 

 being more noticeable in the male than in the female, while in color 

 the onty noticeable variation is a tendency toward a blackish coloration 

 in some individuals and washing with ochraceous in others. 



At Pasadena the species was found to be common on the slopes . of 

 the San Rafael Hills, while it was equally numerous on Echo Mountain. 

 At Tia Juana it occurred on a rocky hillside overgrown with bushes 

 which were dry and parched. 



The species has been recorded from Los Angeles, San Diego and 

 Claremont, southern California. 



Mestobregma rubripenne (Bruner). 



A single male and three females of this species were taken at Cima, 

 August 12, in low bushes near the railroad, and a single female was 

 secured in the foothills of the Bird Spring Mountains, California, 

 August 11, in sand. At Cima the species was extremely local. 



The Californian specimens are all very slightly smaller than repre- 

 sentatives from the Huachuca Mountains, Arizona, and also appre- 

 ciably paler, but no other characters of importance show differences 

 worthy of mention. The pattern, form of the caudal femora, height 

 of the median carina of the pronotum and width of the wing-bar are 

 the same as in the Arizona material. The disk of the wing is yellow 

 or yellowish in all but one specimen. 



12 Biol. Cent. Amer., Orth., II, p. 163. 



