THE CANADIAN ENTOMOLOGIST 185 



eyes large, on ventral surface extending rather more than half way the length 

 of the head, coarsely faceted and sparsely pilose; ocelli three, conspicuous, the 

 posterior pair contiguous with the inner margins of the eyes; mouth-cone reach- 

 ing into the posterior third of the prothorax; maxillary palpi 3-segmentcd. 

 geniculate, basal joint twice as brpad and nearly equal in length to the middle 

 joint, apical small; labial palpi 4-segmented, three apicvl joints slightly longer 

 than basal joint; antenna? 9-segmented, about two and one-half times as long 

 as the head, all segments clothed with numerous short spines, those on segments 

 1 and 2 fewer and stouter, spines on all segments about equal in colour to the 

 segments upon which they are placed; sense areas on apical portions of segments 

 3, 4 and 5, being respectively elongated and inconspicuous, elongated and 

 conspicuous, oval and conspicuous. 



Prothorax. — -Slightly wider than long, about equal in width and length to 

 the head, emarginate midway on each lateral margin, the dorsal surface clothed 

 with numerous stout spines. Mesothorax wider than prothorax, mesoscutum 

 striate-reticulate, with eight prominent spines. Metathorax narrower than 

 mesothorax, metascutum reticulate, with four spines on dorsal surface. Legs. 

 front femora thickened, slightly lighter in colour to femora of middle and hind 

 legs, all tibia? armed at apex, those spines on hind tibiae much the strongest, 

 hind tibiffi with 8-10 stout spines on inner margin, each fore-tarsus armed with 

 a stout hook, which is yellow, and a tooth, which is shaded brown. Fore-wings 

 reaching to about the eighth abdominal segment, rounded at tip, cross-veins 

 present, no cross-vein apparent connecting the second longitudinal vein with 

 the posterior ring vein, five to eight minute spines on each brown area on the 

 anterior longitudinal vein, and six to eight on each brown area on the posterior 

 longitudinal vein, right wing often varying from the left wing in the matter 

 of alar spines, all spines equal in colour to the portion of wing upon which they 

 are placed; scale with one central spine and six to eight inconspicuous spines on 

 anterior margin. Hind wings with a short spine-like fringe on anterior margin 

 reaching from basal fourth to tip, simple fringe along the posterior margin. 

 Abdomen elongate-ovate, conspicuous spines only on the ultimate and penulti- 

 mate sgments. 



Described from 9 macropterous females, taken by the author from the 

 Western Wild Rye grass, Elymus condensatns, at Vernon and Kelowna, British 

 Columbia, in July, 1917. Brachypterous forms also occur in association with 

 the macropterous forms. Their body characters agree with the above account. 



The type and cotype have been placed in the collection of the National 

 Collection of Insects, Department of Agriculture, Ottawa, Canada. Paratypes 

 are also retained in the collection of the author. 



Taeniothrips inconsequens Uzel. (The Pear Thrips.) Plate XVIT. 



During the course of a two-year's study (1916, 1917) of the pear thrips. 

 Taeniothrips (pyri Dan) inconsequens Uzel, on the Pacific coast of British Colum- 

 bia, a number of variable points in the external anatomy became apparent 

 following the close exarnination of a large number of specimens. Early in the 

 study it was apparent that the spines upon the wing, both as regards numbers 

 and position, represented too variable a character alone to certify its specific 

 identity. This observation led to a c»ose examination of the essential specific 



