﻿162 POMONA COLLEGE JOURNAL OF ENTOMOLOGY 



cheeks usually parallel, sometimes converging slightly posteriorly, serrated, 

 and somewhat spinose ; postocular spines long, broadened and flattened at tip. 

 Eyes large, prominent, bulging, coarsely and closely faceted, pigment whitish ; 

 ocelli large, distinct, oval, placed well forward ; anterior ocellus at apex of pro- 

 duced vertex and directed forward ; posterior ocelli not contiguous with inner 

 margin of eyes. Mouthcone very large and powerful, almost rectangular, 

 square at tip, and reaching almost to posterior margin of prothorax ; maxillary 

 palpi extremely short. Antennae (Fig. 67 B) less than twice as long as head 

 (about one and two-thirds), moderately slender and scarcely visibly spinose; 



Figure 67. Liothrips baKeri 



segments I and II concolorous with body, the rest lemon yellow, VII and VIII 

 usually slightly darker; III-V almost transparent at base; antennal spines yel- 

 low and very inconspicuous; III-VII with transparent sense cones-, I and II 

 subrectangular, III-V clavate, VI and VII fusiform, VIII depressed, broad at 

 base and pointed at tip. 



Prothorax (Fig. 67 A) slightly more than half as long as head, and 

 (including coxae) about twice as wide as long, (excluding coxae) not very 

 much broader than head ; with one pair of long spines at posterior angles 

 and no others ; dorsal surface with several short spines. Mesothorax very 



