18 MISCELLANEOUS PAPERS, 



angles and one on each side near lateral margin nearl}^ equidistant 

 between the spines on the anterior and posterior angles. Sides of 

 pterotJiorax nearly straight, gradually tapering posteriorly, fore angles 

 oblique. Legs long and moderately stout, concolorous with the body, 

 except apex of fore tibiae and fore tarsi, which are light brown. Fore 

 femora greatly enlarged; all femora with a small, stout, anteriorly 

 directed, triangular tooth at the tip within; all femora with a long 

 spine near the base underneath. Fore coxse with a short spine. Fore 

 tibiae with a long spine near the tip underneath. Fore tarsi with a 

 small tooth near the middle within and a stout terminal claw. All 

 legs set with numerous short spines. Wings extending to distal 

 margin of sixth abdominal segment, narrowed in the middle, brownish 

 at the base; three spines on anterior margin near the base. 



Abdomen gradually tapering from the base; concolorous with the 

 rest of the body, purple pigmentation conspicuous in unmascerated 

 specimens; tube one-half as long as head ; a few small spines on dorsum 

 and about six weak, long spines at the tip slightly more than one-half 

 length of the tube; a pair of long, slender, pointed spines on the 

 latero-dorsal margin of each abdominal segment. Males similar to 

 females, except smaller, and fore femora more greatly enlarged. 



Described from numerous specimens of both sexes taken in July, 

 August, and September, 1910, on a plant determined by Dr. E. L. 

 Greene, of the Bureau of Plant Industry, as Eriogonum nudum, at 

 Alum Rock Creek Canyon, San Jose, Cal. (P. R. Jones). 

 Anthothrips flavipes new species. (PL V, figs. 5-7.) 



Measurements: Head, length 0.25 mm., width 0.233 mm.; pro- 

 thorax, length 0.233 mm., width 0.366 mm.; mesothorax, width 0.40 

 mm.; abdomen, length 1.41 mm., width 0.444 mm.; length of tube 

 0.15 mm.; total length of body 2.216 mm. Antennae: Segment 1, 

 24^; 2, 48//; 3, 57/i; 4, 60//; 5, 48//; 6, 45//; 7, 51//; 8, 30//; total length 

 of antennae, 0.36 mm. 



General color dark reddish brown. 



Head sUghtly longer than wide, broadest at the base; sides nearly 

 straight, roughened, set with minute spines; postocular spines 

 prominent, knobbed; hind margin of the head not covered with the 

 front margin of the prothorax. Eyes finely faceted, rounded, not 

 protruding, not pilose. Ocelli large, well separated, posterior ones 

 the largest, anterior one not situated on the extreme vertex; posterior 

 ocelli contiguous with the light margins of the eyes; two small spines 

 just behind each posterior ocellus and two about twice as far 

 in advance of each posterior ocellus. Mouth-cone about as long as 

 its width at the base, pointed. Antennse approximate, about one 

 and one-half times as long as the head, separated at the base by a 

 prolonged vertex; color uniform dark brown except segment 3, 

 which is light brown and yellow at the base ; segments 2 and 4 shghtly 

 tinged with Ught brown; segment 1 short, cylindrical; segment 2 



