MORGAN HEBARD 287 



Measurements (in millimeters) of extremes only 



Caudal 



width of Length of 



t| Length of Length of pronotal Length of Width of caudal 



O body pronotum disk tegmen tegmen femur 



Del Monte, Cal- 

 fornia, type . . 11.8 2.9 1.6 2 1.7 7.3 



Del Monte, Cal- 

 ifornia, para- 

 types (170) 11.7-14.7 2.7-3.2 1.5-1.8 1.8-2.7 1.3-1.8 7-8.8 

 9 



Del Monte, Cal- 

 ifornia, allo- 

 type 17 3.1 2 2.3 1.8 8.8 



Del Monte, Cal- 

 ifornia, para- 

 types (152).. 13-18.2 2.9-3.9 1.8-2.5 2.2-3.7 1.8-2.3 8.1-10.7 



Monterey, Cali- 

 fornia 17 3.9 2.5 3.2 2.2 10 



Coloration. — As described for hesperus on page 284, except that the type and 

 a large proportion of the series are more intensive in coloration. In these the 

 occiput, disk of pronotum and tegmina are blackish chestnut brown, the post- 

 ocular bar and dorsal third of the prozonal portion of the pronotal lateral lobes 

 shining black. The lateral dark markings of the abdomen are expanded and 

 deepened into a suffused blackish band, which narrows distad, but is continued 

 on the subgenital plate as a dark suffusion. The femora have the pagina very 

 dark prout's brown, with an oblique line of light buff dorso-mesad and are bor- 

 dered ventrad with warm buff, this widest proximad; the dark areas on the 

 internal portion of the dorsal surface are prout's brown, while the internal face 

 is suffused With prout's brown meso-distad and dorso-mesad. This intensive 

 type of coloration is found in females, but not as frequently as in males. 



Every gradation is shown by the series of females to a maximum recessive 

 condition, in which the general coloration is clay color, the postocular band 

 subobsolete on head and lateral lobes of pronotum, the dark lateral abdominal 

 band indicated by three small suffusions of prout's brown on the proximal 

 abdominal segments. 



Specimens Examined: 327; 172 males and 155 females. 



California: Santa Cruz, Monterey and Del Monte. 



The entire series, with the exception of three specimens, was 

 taken at Del Monte on August 20, 1909, by Hebard and on Sep- 

 tember 9 and 10, 1910, by Rehn and Hebard. Excluding the 

 type and allotype, these are designated as paratypes. The 

 species was found in great numbers in extensive open areas of 

 short, dry grass, where a low yellow-flowered "tar- weed" was 



TRANS. AM. ENT. SOC, XLV. 



