NEW CALIFORNIA AND GEORGIA THYSANOPTERA. 21 



small and slender, only a little narrower at the apex than at the 

 base. A few nearly inconspicuous spines on posterior lateral margin 

 of each segment, knobbed on first eight segments, with small pointed 

 ones on segments 7 and 8; a whorl of six prominent spines on apex 

 of tube. 



Described from one female specimen reared from willow galls, 

 San Jose, Cal., September 15, 1910 (J. R. Horton). 



Near Cryptothrips angustus Uzel, but differing in the italicized 

 characters. 



37. Genus PHL(EOTHRIPS HaUday. 



Key to the Species. 



1. Postocular spines long and conspicuous. 



a. Segment 3 of antennie longer than segments 1 and 2 together. 



h. Body color dark reddish brown; head nearly one and one-third times as long 

 as wide; antennae one and one-third times as long as the head. Segment 

 3 more than one and one-half times as long as segments 1 and 2 together; 

 male unknown Phloeothrips jennei new species. 



y. Body color dark reddish brown; head slightly more than one and one-third 

 times as long as wide; antennae nearly one and one-half times as long as 

 the head. Segment 3 about one and one-ninth times as long as segments 

 1 and 2 together; males with teeth at apex of fore femora. 



Phlceothrips armiger new species, 

 a'. Segment 3 of antennae shorter than segments 1 and 2 together. 



b. General color dark brown, tibiae and tarsi bright yellow; cheeks nearly 

 straight; antennae one and three-fourths times as long as head; males 

 with teeth at apex of fore femora Phloeothrips uzeli Hinds. 



y. General color brown, fore tibiae and all tarsi light brown; cheeks strongly 

 arched; antennae one and one-half times as long as head; males with teeth 



at apex of fore femora Phloeothrips raptor Crawford. 



V. General color yellowish brown, with considerable irregular red hypodermal 

 pigmentation, legs grayish brown; cheeks slightly arched; antennae twice 

 as long as the head; male unknown Phloeothrips pergandei Hinds. 



2. Postocular spines wanting; general color dark mahogany brown, with many small 



white pigmental markings along head, thorax, abdomen, and legs. 



Phloeothrips maculatus Hood. 



DESCRIPTION OF NEW SPECIES. 



Phloeotlirips jennei new species. (PL VI, figs. 4-6.) 



Measurements: Head, length 0.31 mm,, width 0.25 mm.; pro- 

 thorax, length 0.18 mm., width 0.36 mm.; mesothorax, width 0.402 

 mm.; abdomen, width 0.43 mm.; length of tube, 0.2 mm. Antennae: 

 Segment 1, 22/i; 2, 31//; 3, 80//; 4, 80//; 5, 67//; 6, 54«; 7, 52//; 8, 33,«; 

 total length of antennae, 0.43 mm. Total length of body, 2.85 mm. 



Color dark reddish brown, first seven segments of the abdomen 

 lighter. 



Head nearly one and one-third times as long as wide, rounded in 

 front, widest at back of eyes, converging beliind; frons protniding 



