322 PROCEEDINGS OF THE NATIONAL MUSEUM vol. i04 



The following 15 species have not been seen by the writer: arsinoe 

 Hering, atelesta Hendel, atimeta Hendel, biseriata (Loew), conjuncta 

 Hendel, diagramma Hendel, jonasi (Lutz and Lima), penicillata 

 Hendel, jmra Curran, quadriseriata Hendel, quadrivittata Lutz and 

 Lima, separata Hendel, stacta Hendel, titschacki Hering, and tripunctata 

 Hendel. The writer did not think it desirable to give a redescription 

 of obliqua (Say), having seen only two specimens of this species. 



In the material of the Fmidaci6n Miguel LUlo (FML), the collection 

 of Dr. E. E. Blanchard, and the Colegio Maximo de San Jose, 11 species 

 from Argentina were found; of these, only trivittata has been 

 previously reported from that country. In addition to the 28 old 

 names presented herein, 15 new ones are proposed; these 43 pre- 

 sumably valid species are united in a new key. The writer would 

 be indebted to all entomologists and institutions for the loan of 

 more material. 



There is also great need for further biological work, as the food 

 plants are known for only four species. Adults of obliqua were 

 reared from larvae feeding in the bases of the inflorescences of Vernonia 

 scaberrima, V. blodgetti, and V. gigantea (Compositae) in the United 

 States (Benjamin, 1934). Adults of rudolphi were reared from 

 larvae feeding in variably formed stem galls of Vernonia polyanthes 

 Less. (Costa Lima, 1934) and V. tweediana Baker (Hering, 1938) 

 p. 415, "T. vernoniae" in Brazil. Larvae of two species may damage 

 cultivated fruits, feeding in the fleshy parts. Adults of cressoni 

 were reared by L. D. Christensen from peach (Prunus persica (L.) 

 Batsch.) in California, and those of costalimai, phaedra, and trivittata 

 were reared by K. J. Hayward (Hay ward, 1942) from sweet orange 

 (Citrus sinensis (L.) Osbeck) and guava {Psidium guajava L.) in 

 Argentina (Tucumdn). Adults of brevipalpis, dejlorata, and stonei 

 were trapped in fruit fly traps by Zetek in Panama, those of costalimai 

 and trivittata in fruit fly traps among citrus trees by K. J. Hayward 

 in Argentina (Entre Rios, etc.), adults of incompleta in fruit fly traps 

 in roseapple trees by J. W. Baker in Puerto Rico, and an adult of 

 discolor in a fruit fly trap in a guava tree by J. W. Balock in Puerto 

 Rico. M. Kisliuk and C. E. Cooley have collected specimens of 

 unifascia on olive trees in Chde (Arica, etc.). According to 

 Hayward's data, however, the economic importance of the species 

 reared by him was subordinate to that of some species of Anastrepha. 



The preparation of the present revision has been greatly facilitated 

 by the assistance rendered by the following entomological workers and 

 institutions: Dr. Remington Kellogg, Director of the U. S. National 

 Museum (USNM), Washington, and Dr. Alan Stone, entomologist, 

 U. S. Department of Agriculture Research Service, made available 

 valuable material; Dr. Messias Carrera, entomologist of the Depar- 



