REPORT OF THE STATE ENTOMOLOGIST IO,I2 211 



to the South American Haplusia Karsch from which it is easily 

 separated by the unidentate claws. 



Antennae with 14 segments, the cylindric fifth with a length 

 about twice its diameter and a stem not longer than wide. Palpi 

 quadriarticulate, the segments short. Wings long; the supernumer- 

 ary vein extends beyond the middle of subcosta, which latter unites 

 with costa at the middle of the wing. There appears to be a distinct 

 crossvein, the third vein joining the margin beyond the apex of the 

 wing. Tarsi quinquearticulate ; claws fuscous, toothed, the two 

 portions nearly equal and strongly bent ; pulvilli wanting. Ovipositor 

 not produced, with 2 gradually tapering lamellae, each about three 

 times as long as broad. The larva is remarkable because of the 6 

 small, triangular teeth internally on the diverging subtriangular 

 major lobes of the breastbone ; shaft well developed. Reared from 

 a stem gall on Prosopis alpataco. Type T. sexdent- 

 a t u s Kieff. & Jorg. 



Johnsonomyia Felt 



1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 417 



1911 N. Y. Ent. Soc. Jour., 19:37 



191 1 N. Y. State Mus. Bui. 147, p. 84 



This genus was erected for several small forms apparently allied 

 to Colpodia Winn. A closer study of the species, however, shows 

 that circumfili are absent and compels us to refer this genus to the 

 Heteropezinae. The short first tarsal segment, the antennal arid 

 alar structures indicate a relationship to Haplusia Karsch, from 

 which it is easily separated by the simple fifth vein. This is a re- 

 markable synthetic form, since the arrangement of the long setae 

 on the antennal segments closely approximate that of the peculiar 

 crenulate whorls in Campylomyza, while the venation alone would 

 lead one to refer it at once to the Epidosariae. Type J. rubra 

 Felt. 



This genus appears to be related to the Australian Chastomera 

 Skuse, though the latter is remarkable because of the third vein 

 being widely distant from subcosta. 



Key to species 



a Abdomen reddish brown, length 4 mm, the fifth antennal segment 



with a stem one-half longer than the basal enlargement 



rubra Felt, C. 826 

 act Abdomen dark brown and yellowish, length 4 mm, the fifth antenna! 



segment with a stem as long as the basal enlargement 



f u s c a Felt, C. 1237 

 aaa Abdomen reddish yellow, wings indistinctly banded, length 5 mm, the 

 fifth antennal segment with a length three-fourths the basal enlarge- 

 ment cincta Felt 



