64 MISCELLANEOUS PAPERS. 



9. Genus ACANTHOTHRIPS Uzel. 



(24) Acanthothrips doaneii, new species (PL VI, figs. 50-52.) 



lleasurem.ents. — Head, length 0. 37 mm., width 0.25 mm.; prothorax, 

 length 0.20 mm., width, including protruding coxa, 0.45 nmi. ; meso- 

 thorax, width 0.50 mm.; abdcmien, width 0,50 mm.; tube, length 0.28 

 mm.; total body, length 2.4 mm. Antenna?: 1, 48//; 2, 69/<; 3, 120/^; 

 4, 120//; 5, 114//; 6, 81/<; 7, 78/<; 8, 45/<; total, 0.638 mm. Color \evy 

 dark brown, except tips of tibia^, tarsi, and basal and distal parts of 

 segments 3 to 6, inclusive of antennie, these parts shading to yellow. 



Head about one-third longer than wide; cheeks converging posteri- 

 orly; frons elevated between basal segments of antenna; ]>ack of head 

 with cross striations, roughened and set with small spines raised on 

 conspicuous tubercles. Eyes large, slightly bean-shaped, not pilose, 

 finely faceted, each with an orange-colored inner border and a light 

 lemon-yellow, uniform outer border. Ocelli present, anterior one 

 near apex of head, posterior ones contiguous with central concave por- 

 tions of inner mai'gins of eyes. Mouth cone pointed, reaching almost 

 to posterior margin of prosternuni. Antenoise eight-segmented, scarcely 

 twice as long as head; segments 1, 2, 7, and 8 dai'k brown, 3 to 6 

 inclusive brown, shading light brown or 3'ellow at either end; seg- 

 ment 1 cylindrical; 2 subclavate, 3 to 6 inclusive constrict^ to 

 broad stalks at base, and constricted abruptly at their distal ends where 

 they receive sense cones, two on segments 3 and 7, three (one rudi- 

 mentary) on 5 and 6, four (two rudimentary) on segment 4, 



ProfJiord,!- about twice as wide as long, reticulate, bearing a single 

 pair of short spines on anterior angles and a long pair of knobl)ed 

 hairs on posterior angles; surface faintly covered with short incon- 

 spicuous hairs. Mewthorax with front margin almost straight, pro- 

 jecting beyond sides to form a short, rounded shelf where the segment 

 is widest; sides almost parallel, constricted after the middle, ])osterior 

 angles rounded, Metatlioi'u.r with sides evenly convexed, roughened, 

 and reticulate; mesonota and metanota also reticulate, Forecox-ce\}VO- 

 truding be3^ond and not readily distinguished from sides of prothorax; 

 fore femora greatl}^ enlarged and armed on inner margin of distal part 

 with a stout tooth, each fore tarsus also armed with a tooth; other 

 legs long and slender. ^Vlmis fully developed, both pairs alike, with 

 regular fringe of long, closely arranged hairs on either margin; a 

 wavy thickening along anterior margin at base of fore wing, upon 

 which stand one long and two short knobbed hairs; distal anal wing- 

 margin double fringed with about twenty -four hairs. 



Ahdomen about as wide as mesothorax and slightl}' wider than the 

 metathorax. Sides of segments 1 to 5 almost equal and parallel, other 

 segments tapering gradually to meet the tube; a pair of knobbed hairs 

 on each prominent angle; tip of tube bears six long and several short 

 hairs. 



