Pomona College JoiR.sAr. ok Entomolocy 445 



Mftastcriial .s])iirs of medium size: anterior pair present lint very small. 

 /Ii»i.!,'.5 hyaline, large, straight on hind margin, front margin arched, not quite 

 three times as long as hmad, broadest across first furcal ; fourth furcal almost 

 line-half as long as second cubital, terminating at ape.x of wing. 



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

 noderately 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'onale. — 

 .\i)domcn 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 flor.sal plate, on descending 

 area ; ventral ])late acutely pointed : inibescencc rather sparse. 



Describe<l from two males and four females collected by C. F. P.aker in 

 Arboles. Colorado. I'ood-plaut : Shcphcrdia. 



In the preliminary synopsis of Triocitmc this species was included m tlie 

 new genus Paratrioca. The limits of this genus have been subscquentlv altered 

 md another genus erected to include this and several other c'osely atlied 

 -pecies. 



Allotrioza magnoliae (.\shm.) 



( Syn. Trioza iiuit^noliai- .Xshm. I'sylla nia^^nolUic .Nsbm.') 



(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 .04 mm. General color 

 light yellowish green throughout. Pody large. 



Head not deflcxed, 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 .-/. arbolcnsis and 

 .-/. maculata. but less marked than either. .Nntennre inserted on frons sub- 

 laterad. Facial cones short, longer than in .7. arbolcnsis. very broadly rounded 

 apically subhorizontal, quite divergent, moderately pubescent. I.abrum mod- 

 rr.itely large, scarcely visible from in front. 



Thorax large, long and quite broa<l, broader than bead including eyes. 

 -•lightly arched. Pronotum long, flat, 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 ; forecox.T large. Dorsulum 

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

 of medium size. Wiiitis hyaline, large, rather slender, fully three times as 

 long as broad, broadest across first marginal cell, both margins (|nite 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 (|uite 

 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 



