16 MISCELLANEOUS PAPERS. 



Male: Length 1.16 mm. Similar to female, but more slender in 

 form; antennae one and one-half times as long as the head, more 

 slender than in the female. Spines on wings as follows: Fore vein 

 with a group of four regularly placed spines near the base, a second 

 group of seven regularly placed spines, a group of two sUghtly distad 

 of the middle, and two widely separated spines on the outer half; 

 liind vein with ten more or less regularly placed spines. 



Genitalia and orange-colored testes very prominent. 



One specimen, taken May 21, 1910, on weeds at Visaha, Cal. 

 (P. R. Jones). 



Anaphothrips albus new species. (PL IV, figs. 5-8.) 



Measurements: Head, length 0.10 mm., width 0.133 mm.; pro- 

 thorax, length 0.10 mm., width 0.15 mm.; mesothorax, mdth 

 0.183 mm.; abdomen, width 0.233 mm. Antennae: Segment 1, 18/i; 

 2, 33//; 3, 45/i; 4, 42/x; 5, 36/x; 6, 42//; 7, 9//; 8, 12/<; total length of an- 

 tennae 0.247 mm. Total length of body 1 mm. 



Color of body translucent white, tinged very hghtly mth yellowish 

 brown, varying sometimes; head and thorax slightl}^ darker. Head 

 considerably broader than long, rectangular, without visible spines, 

 shghtly angular in front; cheeks arched. Eyes black, prominent, 

 protruding, with coarse facets. Ocelli present, approximate, nearly 

 contiguous; crescents Ught brown. Mouth-cone long, broad at base, 

 pointed at tip, wliich is black, extending to base of prosternum. 

 Maxillary palpi large, 3-segmented; labial palpi 2-segmented, basal 

 segment long. Antennse. long, about two and one-half times as long 

 as head, slender, 8-segmented, no oblique hue dividing sixth segment; 

 color of segments 1 and 2 ver}^ hght transparent yellowish white, 

 segment 3 Ughter, apex of segment 4, apical half of segment 5, and 

 remaining segments entirely shaded Hghtly with gray; a forked 

 sense-cone in ventral side of segment 5, and a simple sense-cone on 

 apex of segments 3, 4, 6, and 7, on lateral side. 



Prothorax as long as head and only sUghtly wider ; one long, slender, 

 transparent, nearly inconspicuous spine on each posterior angle, no 

 other spines visible. Mesotliorax largest, sides rounded. Metathorax 

 with sides almost parallel but constricted abruptly beliind. Legs con- 

 colorous with body but slightly Hghter, hind tibiae alone armed with 

 spines. Wings present, uniformly transparent w^hite, barely dis- 

 cernible. Costa with twenty-six spines; fore longitudinal vein with 

 six spines on basal haK in groups of three, then three scattered ones; 

 apical half of wing with three widely scattered spines; hind longitu- 

 dinal vein mth only two widely separated spines on apical half of 

 wing. Anterior fringe very weak, both anterior and posterior fringes 

 not beginning until about the middle of the wing. 



Abdomen subovate, Hghter translucent white than rest of body, 

 without pronounced spines except on terminal segments, all spines 



