124 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



Type locality, Pasadena, California. 



Sericophanes noctuans Knight, I have taken at Soboba 

 Springs in the San Jacinto Mountains, California, and at 

 Cayton, Shasta Co., Calif. Mr. Knight was certainly right 

 in placing this genus near Pilophorus. Another genus 

 wrongly placed in the Halodapini in my catalogue is Da- 

 cerla which undoubtedly should go in Division Myrmecor- 

 aria near Mimoceps. 



16. Coquillettia foxi, new species 



Allied to insignis, but smaller, more slender and very dis- 

 tinct by the white elytra marked by a black band on apex of 

 corium. Length scant 6 mm. 



Head more porrect than in insignis, the gula and margin of bucculae in 

 nearly the same plane, quite strongly angled in allied species; segment I of 

 antennae scarcely longer than width of eye viewed from the side, less than 

 width of vertex between eyes; II a little more than length of claval suture; 

 length of pronotum about half its basal width; elytra distinctly but not 

 strongly widened at apex of corium; tip of abdomen reaching nearly to apex 

 of cuneus; rostrum attaining intermediate coxae. 



Color, pale rufo-fulvous becoming clearer red on scutellum and beneath, the 

 abdomen in the holotype piceous; antennae infuscated with segment I and 

 base of II paler; elytra white tinged with yellow on clavus, costal margin 

 and middle of cuneus; apex of corium with a broad band of deep black 

 which is one-half longer than width of corium at that point and is cut almost 

 square across anteriorly at the apex of the clavus; cuneus white shading to 

 pale yellow next the black apex; membrane infuscated on its apical half; tibiae 

 and tarsi more or less infuscated, the posterior more strongly so; rostrum 

 piceous on apical half; abdomen piceous, reddish at base with a pale band 

 separating these portions. 



Described from one male taken by Mr. C. L. Fox at 

 Olancha, Inyo Co., Calif., June 5, 1917, and one male taken 

 by Mr. J. O. Martin on the Mohave Desert, California, 

 June 9, 1918. 



I take pleasure in dedicating this distinct and pretty 

 species to Mr. C. L. Fox in recognition of his valuable ser- 

 vices in enlarging our knowledge of the insect fauna of 

 California. 



Holotype, male, No. 772, Mus. Calif. Acad. Sci. ; a para- 

 type also in the Academy's collection. 



Type locality, Olancha, Inyo County, Calif. 



The four species known to me may be separated by the 

 following key : 



