Vol. XXXl] ENTOMOLOGICAL NEWS 1 31 



sad, from beneath the penultimate tergite, project two small, irregular, 

 rotundato-trigonal plates. These are sometimes concealed and appar- 

 ently represent the supra-anal plate (tenth tergite, not counting the median 

 segment, which, in the species of Titnema, is of the same form as the first 

 tergite). Subgenital plate scoop-shaped, with apex weakly obtuse-angu- 

 late emarginate.' Styles absent. 



Allotype: 9 ; Los Angeles County, California. June. 

 (D. W. Coquillett.) [United States National Museum.] 



Very similar to females of calif ornicum, apparently differing only in 

 genitalic features. Size considerably larger than in male. Penultimate 

 tergite roundly produced mesad,' so that only the distal portion of the 

 very small trigonal supra-anal plate is exposed. Cercus elongate, coch- 

 leate, very broadly truncate at apex, this truncation very weakly oblique 

 and with margin strongly but irregularly dentate. 



Measurements ix ^Millimeters 



Length of Length of Width of Length of 

 body pronotum pronotum caudal tibia 



6 



Los Angeles County, Cal. Tv/Je.. . 14. 2.3 3.3 4. 



LosAngeles County, Cal. Para^y/)e 13.5 2.2 3. 4.2 



Blount Wihon, Ca\. Paratype 13.7 2.4 3.7 4.3 



o 



Los Angeles County, Cal. ^/Zo^j/je. 21. 3. 4. 4.8 



Los Angeles County, Cal.Para^3'/'e 20. 2.7 3.9 4.8 



From the available data the distribution of the present 

 species would appear to cover the mountains in the Los 

 Angeles region, extending down their eastern slopes into 

 decided desert conditions, as is shown by material taken at 

 Palm Springs, in the Mojave Desert at the foot of the San 

 Jacinto Range. 



Specimens Examined: 9; 3 males, 2 females and 4 immature individuals. 



California. Los Angeles County, icf, type, [Hebard Cln.]; June, 

 (D. W. Coquillett), i cf , 2 9 , I juv. 9 allotype and paratypes, [U. S. N. M. 

 and Hebard Cln.]. Mount Wilson, near summit, June 6, 1916, (H. 



^In californicum the subgenital plate is weakly scoop-shaped, with apex 

 broadly and weakly convex. 



^In californicum the penultimate tergite is moderately angulate-emargi- 

 nate, so that a larger portion of the very small trigonal supra-anal plate 

 is exposed. 



