﻿CRAWFORD. THYSANOPTERA OF SOUTHERN CALIFORNIA 151 



reaching about three-fifths the length of prothorax, blunt at tip and distinctly 

 tipped with black; maxillary palpi three-segmented. Antennae (Fig. 62 C) 

 apparently nine-segmented, about twice as long as head, slender, sparsely, briefly 

 and indistinctly spinose; with a sense cone on seginent III, and a bifurcate one 

 on IV ; II subglobose, III pedicellate, VI with a very distinct suture apically, 

 which appears to be as true a joint as either of the joints of the style ; style 

 rather long and slender ; basal segments very light, apical segments darker. 



Prothorax (Fig. 62 A) subrectangular, about as long as head and three- 

 fourths as long as broad ; with one comparatively long transparent and indis- 

 tinct spine at each posterior angle, several shorter ones on posterior margin, 

 and two very small ones on each anterior angle. Legs medium in length, 

 very sparsely spinose; tarsi unarmed. Wings (Fig. 62 D) long, slender, ex- 

 tending one-fourth the abdomen's length beyond tip of abdomen, very light 

 brown, almost transparent, with a small clear area near base ; veins rather prom- 

 inent, posterior vein appearing close after basal clear spot ; anterior vein with 

 twelve spines, three on apical half ; posterior vein with nine equidistant spines ; 

 anterior margin with a row of twenty-nine short spines ; posterior marginal 

 fringe moderately short, all spines and cilia very inconspicuous. Posterior 

 wings shorter, entirely transparent, with a fringe on both sides. 



Abdomen usually rather stout, fully half as broad as tong, pointed at 

 tip; occasionally the abdomen is longer and more slender, and only one-third 

 as broad as long, and in such forms the wings only slightly over-reach the 

 abdomen ; broadest across segments five and six, tapering uniformly from six 

 to ten; anal segment (Fig. 62 B) rounded at tip; abdominal spines few, and 

 short; anal spines very short and almost transparent. This species apparently 

 is not saltatory. 



Measurements: Head, length .11 mm., width .13 mm.; prothorax, length 

 .12 mm., width .16 mm.; pterothorax, width across mesocoxae .21 mm.; abdo- 

 men, length .42 mm., occasionally about .66 mm., width .24 mm. ; total length 

 about .96 mm. (.84—1.11). Antennje: I, .022 mm.; II. .032 mm.; Ill, .040 

 mm. ; IV, .041 mm. ; V, .038 mm. ; VI, .041 — .010 mm. ; VII, .011 mm. ; VIII, 

 .014 mm ; total .25 mm. 



Described from several females (two of which have the longer abdomen), 

 taken from olive foliage infested with black scale {Saissetia oleae). It has 

 not been determined yet whether or not this species has any definite relation 

 to the scale insect ; a few specimens have been foimd also on the foliage of 

 common pine. 



Locality: Claremont, Cal. (Crawford). 



Although the current description of Amiphothrips precludes spines on 

 posterior angles of prothorax, and the genus Scirtothrlps Shull was erected 

 for a certain species having such spines, nevertheless, I believe that without a 

 doubt this species belongs in the genus Anaphothrips. The obvious and un- 

 mistakable similarity to A. striatiis Osborn places it beyond doubt in the closest 

 generic relationship with that species, at least, but whether a genus charac- 

 terized by the apparent division of the sixth antennal segment should be 

 erected might be a question of fair tliscussion ; be that as it may, it is evident 



