346 JOURNAL OF ECONOMIC ENTOMOLOGY ]Vol. 6 



rufous; metanotum same color, with a conspicuous deep brown or almost black 

 wide lateral border showing like two vittaj; tergum of abdomen and ovipositor 

 distinctly rufous-tinged but much lighter than mesoscutum, the hind edges of 

 segments yellow in distinct fasciae. 



Wings marked with rufous-yellow and fuscous; a fuscous inverted V extending from 

 third vein to hind margin of wng, its proximal arm enclosing the hind crossvein, just 

 in front of which the arm becomes yellowish; fuscous and yellow band along costa 

 from tip of apical cell to nearly opposite small crossvein, the color passing obliquely 

 across wing over small crossvein to the narrowed and pointed tip of anal cell, thence 

 diffused over most of basal half of wing leaving clear only the second basal cell, 

 proximal end of discal, large area beyond middle of first basal, subtriangular area 

 from distad of end of first vein to proximad of front end of small crossvein, two axil- 

 lary lobes inside of anal cell, and less clearly the second costal cell; the color being 

 largely yellowish narrowly edged with fuscous, the fuscous broadened in third posterior 

 cell. First vein wholly spined, third vein spined to slightly or well beyond small 

 crossvein. Apical cell narrowed by the fourth vein curving roundly costad just before 

 reaching margin. 



Abdomen of female wide and short, noticeably wider than long; ovipositor fully as 

 long as abdomen, about three times as long as mean width, slightly narrowed poste- 

 riorly. Abdomen of male nearly twice as long as greatest width, gently narrowed 

 posteriorly. Four bristles on scutellum, six on hind portion of mesoscutum, lateral 

 ones on mesoscutum and pleuraj ; five inwardly directed small bristles on parafrontals 

 anteriorly, behind them two reclinate bristles beside the two vertical bristles on each 

 side. Front of female hardly or nearly as wide as one eye, that of male slightly nar- 

 rower, face widening evenly below from front. 



Dried specimens are obscure tawny or pale dilute brownish on all except the 

 enameled yellow portions, which last show as nearly white; while the. abdomen is 

 often distorted from its normal form as shown in the fresh specimens. 



Type, female, collected at Chosica, Peru, 2,800 feet altitude, March 

 11, 1913. Description compared with dried specimens of both sexes 

 reared from guavas collected at SuUana in the department of Piura, 

 Peru, February 17, 1912, the flies having issued from March 4 to 10. 



As a remedy for this fruit-fly the writer has advised a spray modeled 

 after the Mally fruit-fly spray used in South Africa, applied to the 

 foliage before the fruits begin to ripen or as soon as the presence of the 

 flies is noted. The formula most convenient for use in Peru is lead 

 arsenate 5 to 10 pounds, chancaca (brown or black cane sugar in 

 cakes) 25 to 50 pounds, and water 100 gallons. The chancaca needs 

 to be dissolved in boiling water before adding to the arsenate solution. 

 The variation in the amount of arsenate is for regulation to different 

 kinds of foliage, guava and orange standing much more than peach; 

 while the sugar content should be increased in the same proportion 

 with the arsenate. 



