276 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Se«. 



Valley, Santa Cruz Mountains, in August, 1913, and one 

 female taken by me near Redding, Calif., July 7, 1918. This 

 species is a little larger than remotus and may be distinguished 

 by the narrower and longer head, different relative lengths of 

 the antennal segments, shorter basal segment of the rostrum, 

 .the black markings of the upper surface of the head, pronotum, 

 scutellum and connexivum, and, especially, by the calloused 

 and bevelled base of the scutellum. The colors are doubtless 

 subject to variation but here there is none of the pink tint 

 found on the corium of remotus. The male genital characters 

 do not differ materially from those of remotus so far as can be 

 seen without dissection. 



Holotype, male from San Diego County, in collection of the 

 author. 



Allotype (No. 390), female from Bear Valley, and para- 

 types in collection of the California Academy of Sciences. 



6. Brochymena sulcata, new species 



Closely allied to 4-pusfulata and affinis and somewhat inter- 

 mediate between those species, but quite distinct in its male 

 genital characters ; cheeks more produced before the tylus ; 

 arolia narrower; male genital segment transversely sulcate, the 

 claspers narrower, elliptical; length 12-15 mm. 



Head as long as the pronotum on its median line; cheeks surpassing the 

 tylus by their own width at that point, their inner margins at the sinus 

 parallel or diverging, not approaching or overlapping as is usuallv the case 

 in 4-pusttilata, their lateral tooth rectangular. Segments two to five of the 

 antennae subequal in length, the third sometimes a little longer, normally 

 so in 4-pustnlata. Rostrum attaining the middle of the second ventral 

 segment. Pronotum across the humeri a little more than twice broader 

 than its median length ; lateral margins before the sinus with four to six 

 triangular fiattish teeth that merge into the adjoining surface, the humeri 

 with six to eight serrations or small teeth ; in 4-pustiilata these lateral 

 teeth are more terete and calloused and sometimes are curved backward. 

 Exserted ostiolar canal tongue-shaped, narrowed at base, rather longer 

 than the external diameter of the orificial tube ; in 4-pnstulata lanceolate, 

 broadest at base, and distinctly shorter. Male genital segment almost at- 

 taining the outer angle of the sixth ventral segment, its apical margin 

 transversely sulcate, omitting the smoothly rounded median excavation ; 

 either side the sulcus clothed with long pale hairs ; claspers elliptical ven- 

 trally, in 4-pustnlata broadly rounded. Other structural characters sub- 

 stantially as in 4-pustulata. 



Color above as in the allied species ; beneath pale with the marginal alter- 

 nations, slender edge of the segments, stigmata, a line behind them, and a 

 spot on the middle of the sixth segment blackish. Femora fuscous with 

 their base, an apical and a subapical spot pale, the latter often produced 

 basally as a vitta. Tibise with a broad median pale annulus carrying a 

 fuscous spot on the exterior face ; the posterior rarely marked with a pale 



