NEW CALIFORNIA AND GEORGIA THYSANOPTERA. 19 



urn-shaped, with a long base; segment 3 clavate; segment 4 nearly 

 fusiform; segments 5 and 6 more slender and less fusiform; segment 

 7 narrow, cylindrical; segment 8 sharply conical. Spines pale and 

 weak; sense-cones short. 



Prothorax nearly as long as the head; a stout, knobbed spine on 

 each coxa, one on each fore angle, one in each posterior angle, and a 

 pointed spine just inside of the knobbed ones on posterior angles. 

 Fore coxae large, forming apparently prominent angles. Pterothorax 

 nearly as wide as the abdomen; sides nearly straight, narrowed 

 abruptly in front, gradually behind. Legs stout, unicolorous with 

 the body, fore femora greatly enlarged; fore tibiae, distal portion of 

 intermediate and posterior tibiae, and all the tarsi lemon-yellow; a 

 dark spot on all the tarsi near the apex within; fore tarsi armed with 

 a large stout tooth near the tip within. Wings present, narrowed at the 

 middle, fringes long, single, except hind margin of the fore wing 

 where it is double for 10 to 12 hairs. 



Abdomen broadly joined to the metathorax and but slightly wider, 

 less than twice as wide as the head and much more than twice as 

 long as wide; first seven segments equally broad; rest gradually 

 tapering; tube about three-fifths as long as the head. Spines incon- 

 spicuous on first five segments, several light colored, long, knobbed, 

 and several pointed spines on postero-lateral margin of segments 

 6, 7, 8, and 9, more numerous on the latter; tube with a whorl of 

 terminal spines about twice as long as the tube, which is only shghtly 

 wider at the base than at the apex. 



Described from one female specimen collected from an " emergence 

 cage" used for the pear thrips (Euthrips pyri Daniel) at San Jose, 

 Cal., 1910 (P. R. Jones). 



Near Anthothrips aculeatus Fab,, but differing in the italicized 

 characters. 



34. Genus CRYPTOTHRIPS TTzel. 



Key to the Species. 



a. Color dark yellowish brown, with no conspicuous purplish pigmentation; head 

 slightly more than twice as long as wide; antennae concolorous with head, 

 except segment 2, which is yellowish brown, segment 3 brownish yellow, 

 segment 4 light brown; postocular spines prominent, knobbed; ocelli not 

 situated far forward Cryptothrips salicis new species. 



a^. Color brown to blackish brown, with conspicuous purplish pigmentation; seg- 

 ments 1 and 2 of antennae concolorous with head, segment 3 and base of 

 4 yellow, others shading brown toward tip; postocular spines Hot long 

 and prominent, blunt, not knobbed Cryptothrips califomicus Daniel. 



a " . Color uniformly coal-black, except tarsi, which are blackish browTi. 



h. Antennae uniformly black; body length about 2.22 mm.; two pairs of promi- 

 nent postocular spines Cryptothrips carbonarius Hood . 



6 ''. General color of antennae black, segment 2 paler at apex, segment 3 with two 

 transverse, brownish-yellow bands, one band at the base and the other 

 in the middle; body length about 2.7 mm. ; without prominent postocular 

 spines Cryptothrips rectangularis Hood. 



