4 TRANS. S. D. SoctrTy NATURAL HISTORY 
ied with black and pale. Rostrum black reaching the hind coxe. 
Male smaller and narrower than the female, the markings 
much obscured, the scutellum with indications only of the white 
lateral spots and pale median line, the whitish arcuated basal lines 
distinct. 
Described from numerous examples taken about San Diego 
on the chaparral. During the spring of 1913 it was abundant but 
the present season I have seen but few. Females living on the red 
manzanita bushes become clear castaneous with the characteristic 
markings much broken and obscured, the clearly marked grey 
forms were taken on the Adenostoma where their color harmon- 
izes perfectly with their surroundings. 
5. HEurygaster alternatus Say. Mussey’s, Alpine; April to August. 
Family CYDNIDAE 
6. Thyreocoris nitiduloides Wolff. Alpine, on adobe soil, March 
to June. 
7. Thyreocoris montanus Van D. Fosters to Alpine, May to 
October. 
8. Thyreocoris extensus Uhler. April to October, common, es- 
pecially at Alpine. 
9. Macroporus repetitus Uhler. Mussey’s, one example taken 
near a brook in April 1914. 
10. Homaloporus congruus Uhler. San Diego, May to August, 
young in August. Taken by Mr. W. S. Wright. 
11. Aethus conformis Uhler. La Jolla, June, one example. 
12. Pangaeus discrepans Uhler. San Diego, May, one example 
taken by Mr. Wright. 
13. Geotomus parvulus Sign. February to April. Occasional. 
Family PENTATOMIDAE 
14. Brochymena quadripustulata Fabr. Occasional on trees and 
bushes throughout the year. 
15. Brochymena affinis Van D. Pine Hills, October, on pine. 
16. Peribalus abbreviatus Uhler. Mussey’s and Alpine; April 
to August. 
17. Rhytidolomia faceta Say Salt flats at Torrey Pines, June. 
18. Chlorochroa ligata Say. La Jolla, September. Also taken 
on mustard at San Juan Capistrano in June 1914. 
19. Chlorochroa sayi Stal. July to October; not common. 
20. Carpocoris remotus Horvath. Alpine, October. One example 
taken on a Boragonaceous plant. 
1. Huschistus conspersus Uhler. March to April. 
22. Cosmopepla uhleri Montd. Alpine and Mussey’s, April. 
From chaparral on dry rocky hillsides. 
23. Thyanta custator Fabr. Common everywhere. During aut- 
