FAMILY Tin'PAXEID.E THE FRUIT FLIES 



293 



36. Front bristles well developed; ocellars present 37 



Frontals weak; ocellars absent; ovipositor very long and cylindrical 



( 14 ) Toxotrypanea Gerstsecker 



37. Head higher than long 38 



Head longer than high (67) 44 



38. Scutellum without a deep longitudinal furrow 39 



Scutellum swollen and with a deep longitudinal furrow (58, 65). 



Peronyma Lcew 



39. Front immediately above the antennas almost half as wide as the head 



and very much wider than either eye 40 



Front much less than half as wide as the head and, anteriorly, little 

 if any wider than one eye from anterior view 41 



40. Anterior pair of dorsocentrals situated far in front of a line drawn 



between the anterior pair of supra-alar bristles (16, 39). 



*Eurostina Curran 

 Anterior pair of dorsocentrals situated at most slightly in front of a 

 line drawn between the anterior supra-alars or behind such a line 

 (55, 71) Eurosta Lcew 



41. Front twice as long as the width at vertex (52, 74). . .Xanthaciura Hendel 

 Front much less than twice as long as the width at vertex 42 



42. Front with at least three pairs of convergent frontal bristles 43 



Front with two pairs of convergent frontals (76) Dyseuaresta Hendel 



43. Head almost as long as high, the oral margin projecting; eyes oblique, 



broadly oval (56, 75) fTrupanea Schrank 



Head much higher than long, the oral margin but little projecting; eyes 

 perpendicular, rather narrowly oval (68, 78) |Aciurina Curran 



44. Third antennal segment short, the apex rounded (Europe) (67). 



Ensina Lcew 

 Third antennal segment rather long, the upper apex angulate (77). 



Paroxyna Hendel 



The student will find it difficult to locate many species described in 

 genera other than those to which they are now assigned. In the following list 

 are given (1) the present genus and (2) in ( ) the genera in which species 

 may be found. 



Acidia (Spilographa). 



Dyseuaresta (Euaresta, Tephritis). 



Ensina (Tephritis). 



Euribia (Aleomyia, Urophora, Tephritis Hendel, 1914). 



Myoleja (Aciura, Acidia, Eucosinoptera). 



Tephritis (Euaresta, Ensina, Trypanea, Urellia). 



Terellia (Trypeta. Orellia). 



Tetreuaresta (Euaresta, Tephritis). 



Trypanea (Urellia, Tephritis). 



Trypeta (Orellia, Terellia, etc.). 



Zonosema (Spilographa, Acidia). 



* Originally Eurosta latifrons Lww was named as type of this genus but the sjiecies is a 

 true Eurosta and does not possess the j;eneric characters of Eurostina. The type of the genus 

 should be known as Eurostina confusa, Slosson Collection, Delaware Water Gap. 



t Curran, 1932, Amer. Mus. Novit. No. .556 (Trypanea). 



± Curran, 1932, Amer. Mus. Novit. No. 556. In a letter to the author Dr. Hendel sug- 

 gested the synonymy of this nenus with Tephrella Bezzi pnd this is (juite possible. However, 

 I am retaining Aciurina on the suggestion of Mr. Bates, as a com]iarison of specimens with the 

 genotype of Tephrella^ a little known species, may prove that two genera exist. 



