454 PROCEEDINGS OF THE ACADEMY OF [Oct., 



Yosemite National Park, September 1, five males, four females; 

 Mariposa Grove, September 2, two males, two females; Miami, Sep- 

 tember 3, one female; Ahwahnee, September 3, one male; South 

 Fork, Santa Ana River, San Bernardino Mountains, 6,200 to 6,700 feet, 

 June 28-July 24, 1906, J. Grinnell, three males, two females. 



We have mentioned the habitat and abundance of this species in 

 the notes on Trimerotropis cceruleipes. In actions this insect much 

 resembled species of Circotettix and appears to be very close to that 

 genus. It makes a distinct clatter when in flight. 



Yosemite Valley specimens are uniformly more reddish than indi- 

 viduals from the other localities, although closely approached in some 

 Mariposa Grove specimens. A number of individuals have the prono- 

 tum reddish or dull ochraceous. The coloration of the tegmina is 

 rather uniform considering the size of the series, the annular dark 

 fuscous spots being regularly distributed, a tendency to form transverse 

 bars being noted in but two specimens, these from the San Bernardino 

 Mountains. There is some variation in the depth of the yellow on 

 the disk of the wing, but the majority of the specimens are quite 

 uniform in this respect, sulphur yellow being the color found in the 

 greater number. The fuscous wing-band frequently has numerous 

 pale cellular spots distributed over it, the veins being darker than the 

 cells, but a number of individuals have the band nearly solid, and in 

 all it is well defined and decidedly indicated. The apical portion 

 of the wing is nearly uniform infumate in the series from the Yosemite 

 and adjacent regions, while it is much paler and semi-hyaline in several 

 San Bernardino Mountains specimens, although one individual from 

 the latter region is similar to the Yosemite majority. In some speci- 

 mens the pale cellular areas are also indicated in the apical region. 

 This species has been recorded from "California" and Placer County, 

 California. 

 Trimerotropis oaeruleipennis Bruner. 



This interesting species was common on Santa Catalina Island, 

 where a series of forty-seven males and thirty-two females was taken 

 on August 3 and 7. Generally speaking it frequented the steeper 

 slopes of the island. These insects were not as active as some indi- 

 viduals of the species taken a few years ago at Salt Lake City. Two 

 males were also taken in the greasewood section at Cottonwood, 

 September 9, where they were the only individuals of the species seen. 



When compared with two females from Salt Lake City, the Santa 

 Catalina Island specimens are seen to be decidedly smaller, while the 

 Cottonwood individuals are, allowing for the difference in sex, nearer 



