114 A MANUAL OF DANGEROUS INSECTS. 



at the costa just beyond the tip of the first vein; on the discal half of the wing there 

 is a brown band in the shape of an inverted V, resting on the posterior margin and 

 extending through the first and second posterior cells; this V-shaped mark may be 

 independent, or its apex may be joined to the other brown zone. There is considerable 

 variation in the wing pattern, both as to intensity of coloring and detail of the pattern. 

 Immature specimens have the brown wing pattern much weaker; newly emerged ones 

 show hardly a trace of it. Female ovipositor stout, shorter than abdomen, tapered 

 jsegularly toward tip and covered with coarse black hairs; in mature specimens it is 

 subcylindrical, but in specimens not fully hardened it is flattened. 



Dislrihulion: Mexico, Central and South America, West Indies. 

 Von Ihering, H. Revista Agric. (Sao Paulo), 1901, vol. 6, No. 70, p. 180. 

 Howard, L. 0. U. S. Dept. Agric, Yearbook 1897, p. 546. 

 Hooker, C. W. Ann. Kept. Porto Rico Agric. Exp. Sta., 1912, p. 36. 



Anastrepha ludens Loew. 

 (Mexican Fruit Fly. Trypetidse; Diptera.) 



Host: Orange, sweet lime, mango, Sideroxylon (Achras) sapota, peach, guaA'a, plum. 



Injun/: Considered a serious pest in Mexico. Quarantine issued .lanuary 15, 1913. 



Description and biology: Adult female, length 9 mm.; of dull ochreous yellow color; 

 wings hyaline, mottled and striped with brownish yellow bands; anal segment of 

 abdomen longer than remainder of abdominal segments combined. Eggs deposited 

 under skin of ripening fruit, larvae on hatching out tunnel into the fruit; pupate in 

 soil. Average life cycle about 3 months, making about four generations a year in 

 Mexico. 



Distribution: Mexico. 

 Froggatt, W. W. Department of Agric, New South Wales, Farmers' Bull. 24, 1909, 



p. 53. 



Anastrepha peruviana Townsend. 



Peruvian Fruit Fly. Trypetidae; Diptera.) 



Hosts: Peach, guava, cherimoya, many other deciduous and citrous fruits. 



Injury: Very serious in Peru. 



Description: Female fly, to tip of ovipositor, 7-8 mm. long; male 6.5-7 mm. long; 

 wing expanse 6-6.5 mm. Color of head, pleurae, anterior half of venter, and legs 

 watery lemon yellow; antennae and proboscis buff yellow; tibiae and tarsi slightly 

 dusky.- mesopleural and sternopleural plates largely rufous-yellow tinged ; eyes bright 

 green to lilac purple; other parts obscure tawny or yellow. 



Distribution: Peru . 

 TowNSEND, C. H. T. Journ. Econ. Entom., 1913, vol. 6, No. 4, p. 345. 



Bactrocera tryoni Froggat. 

 (Queensland Fruit Fly. Trypetidae; Diptera.) 



Host: Banana, mango, peach, apricot, nectarine, orange, apple, quince, black 

 apple {Sideroxylon [Achras] australe), cheesewqod (Acronychia laevis), white ash 

 {Schizomeria ovata), cucumbers, loquats. 



Description and biology: Adult female, mm. long with wing expanse 10-12 mm., 

 wings transparent, abdomen constricted at the base and broadly rounded at the tip, 

 thorax with a broad creamy often pale dorsal band running down the scutellum 

 with short, well-defined narrow pale yellow stripe on each side. (See plate xxv.) 



Distribution: India, Ceylon, Java, Amboina, Australia (Queensland, New South 

 Wales). 

 Froggatt, W. W. Dept. Agric, New South Wales, Miscl. Pub. No. 303, 1899, p. 2, 



figures. 

 Froggatt, W. W. Dept. of Agric. New South Wales, Farmers' Bui. 24, 1909, p. 11. 



