SOUTHERN CALIFORNIA ACADEMY OF SCIENCES. 75. 



the dorsal pubescence of the head and thorax, as in. 

 pecosense, is fulvous. Head marked as in pecosense, ex- 

 cept that the scape has a yellow stripe (sometimes want- 

 ing) and the spots above the eyes are produced and pointed, 

 mesad; thorax with the yellow markings of pecosense re- 

 placed by orange and more developed, forming a broad, 

 band surrounding the mesthorax and scutellum, except for 

 a space in front; band on first abdominal segment notched 

 behind, or sometimes divided into four spots, in which case 

 the median spots are quadrate and qute large ; remaining 

 bands laterally notched (not very broadly) in front, and. 

 emarginate in the middle, those on the second, third and 

 sixth frequently divided; lateral spines of sixth segment 

 partly yellow; venter of abdomen ferruginous, with yellow 

 spots at extreme sides; apical ventral segment tridentate,. 

 the middle tooth broad, ferruginous, and emarginate, the 

 lateral ones rather broad and not very long, ferruginous 

 edged with black. The femora have broad orange stripes, 

 the tibiae are entirely orange on the outer side; basal joint 

 of tarsi orange, the others ferruginous. 



Hab.— Five males collected by Dr. Davidson; type from Straw- 

 berry Valley, others from ^It. Wilson. With these I asso- 

 ciate some females from Bear Valley, Wilson's Peak and 

 Lo& Angeles. They are similar to the male, but smaller 

 (101/2 mm. lon|g), the clypeus has a blackish median shade,, 

 the spots above the eyes are produced into bands which 

 nearly meet in the middle line, and the ventral scopa is 

 white. The female suggests A. placitum, but the abdomen is 

 strongly punctured, and not transversely impressed at base. 



The following three forms are referred as varieties to A. ber- 

 nardinum, but they certainly look very different, though 

 similar in the details of the markings, &c. 



A. bernardinum v. wilsoni, n. v. 



Male ; length about IOI/2 mm. ; dorsal pubescence pale fulvous ; 

 antennae entirely black; band on fourth abdominal seg- 

 ment divided in middle, as well as those on second and 

 third; apical lobes with the inner angle more prominent; 

 yellow on thorax reduced to two lines on mesothorax in 

 front, line on tubercles, and two lines and two dots on scu- 

 tellum ; venter of abdomen very dark brown ; apical ven- 

 tral segment with the median process large, broadly round- 

 ed, dark brown, not emarginate, the lateral ones pointed 

 black teeth; femora brown-black, the middle ones with a 

 yellow apical spot, the hind ones with an apica] stripe. 



Hab.— Mt. Wilson, California, one collected by Dr. Davidson^ 



