Pomona CorxEcic Journat, of Entomology 443 



Mctasternal spurs of nictliuni size; anterior pair present luit very small. 

 IVings hyaline, large, straight on hind margin, front margin arched, not quite 

 three times as long as broad, broailcst across first furcal ; fourth furcal almijst 

 one-half as long as second cubital, terminating at apex of wing. 



Male. — Abdomen quite stout. Genital segment of medium size ; claspers 

 moderately large at base, subacute apically ; anal valve rather small, simple. 

 ( In the only two male specimens available the claspers are drawn down into 

 the genital plate and not entirely visible.) Pubescence moderate. I'cinalc. — 

 .Xbdomcn larger than in male. Genital segment rather small, scarcely longer 

 than two preceding ventral sclerites ; dorsal plate longer than ventral, acutely 

 pointed ; genital pore about one-fourth as long as dorsal plate, on descending 

 area ; ventral plate acutely pointed : pubescence rather sparse. 



Described from two males and four females collected by C. F. Baker in 

 .\rboles, Colorado. Food-plant; Shepherdia. 



In the preliminary synopsis of Triozinac this species was included ui the 

 new genus Paratrioza. The limits of this genus have been subsequently altered 

 and another genus erected to include this and several other closely allied 

 species. 



Allotrioza magnoliae (Ashm.) 



( Syn. Trioza inagnoliac Ashm. f'sylla magnoliae Ashm.) 



(Fig. 152, L; 153. M; 154. J; 155. J) 



Length of body 2.7 mm.; length of forewing 3.8 mm.; greatest width 1.3 

 mm. ; width of vertex between eyes .56 mm. ; with eyes .94 mm. General color 

 light yellowish green throughout. Body large. 



Head not deflexed, large, quite coarsely punctate. Posterior margin of 

 vertex arcuate, rather narrowly elevated between ocellar regions ; vertex not 

 raised plate-like; vertex very similar in excision to that of A. arbolensis and 

 A. maculata, but less marked than either, .\ntennse inserted on frons sub- 

 laterad. Facial cones short, longer than in A. arbolensis, very broadly rounded 

 apically subhorizontal, quite divergent, moderately pubescent. Labrum mod- 

 erately" large, scarcely visible from in front. 



Thorax large, long and quite broad, broader than head including eyes, 

 slightly arched. Pronotum long, fiat, not depressed below head and dorsulum. 

 with a plicate marking extending from plenrites on each side about half the 

 distance upward, pleurites not unusually large ; forecoxje large. Dorsulum 

 long, longer than scutum, rather acutely rounded cephalad. Metasternal spurs 

 of medium size. ll'i)igs hyaline, large, rather slender, fully three times as 

 long as broad, broadest across first marginal cell, both margins quite neany 

 equally arched, subacute apically; first marginal cell much longer than second; 

 first cubital not much longer than first furcal ; fourth furcal about one-fourth 

 as long as second cubital, terminating distinctly above apex of wing. 



Male. — Abdomen tapering roundly to genital segment ; anal segment quite 

 constricted. Genital segment moderately large, of usual form ; claspers large 

 basally, tapering abruptly, recurved at tip. almost as long as anal valve ; 

 anal valve truncately conical when viewed laterally, quite large. Pubescence 



