420 PROCEEDINGS OF THE ACADEMY OF [Oct., 



This is the first record of the species from Nevada and the second 

 with exact data from California, Riley having recorded it from Pana- 

 mint Valley, Inyo County. 

 Morsea oalifornica Scudder. 



This very interesting Eumastacid was found on manzanita bushes 

 (Arctostaphylos tomentosa), at elevations of from 5,200 feet to 5,600 feet 

 on Mt. Lowe, August 8, where a series of two presumably adult males, 

 three females and six immature specimens was taken. A single 

 female was also taken at an elevation of 3,200 feet on Echo Mountain, 

 while a male from 5,000 feet on Mt. Wilson, taken September 15, by 

 Fordyce Grinnell, Jr., is also before us. 



From the original measurement given by Scudder, "length of the 



body and of the hind femora .... 9 mm.," it would appear 



that the types are immature, as a pair from Mt. Lowe, which we judge 



to be adults, measure as follows: 



& 9 



Length of body, 12 mm. 16.5 mm. 



Length of pronotum, 2.2 " 2.7 " 



Length of caudal femur, 10 " 11 " 



There is little variation in size in the adult specimens, the Echo 

 Mountain female, however, being slightly smaller than the others of 

 that sex. 



In color the adults show little variation, the general tone of the 

 female being dull blackish brown dusted with grayish with the 

 limbs irregularly annulate with very dull grayish, except the caudal 

 tibiae which are mottled; the general color of the males is usually 

 more warm brown on the dorsum, with a narrow median dark-brown 

 line on the pronotum and much broader, poorly defined postocular 

 bars of the same color, the limbs annulate as in the females, and in 

 two of the specimens the whole surface is much dusted with hoary. 

 The postocular bars of the male are sometimes continued on the 

 sides of the abdomen, and in the Echo Mountain female indications 

 of these bars are also present. A pale edging to the ventral margin 

 of the lateral lobes of the pronotum is present more or less distinctly 

 and of varying width in a number of the adults. The immature speci- 

 mens are much more uniformly red-brown than the adults, although 

 one, a female, has the coloration of adults of that sex. 



No traces of tegmina or wings are apparent. 



These insects were usually to be found perched on the upper portions 

 of the manzanita bushes. They were found to be very active with 

 saltatorial powers much developed, added to which their small size 



