Vol. xxiii] ENTOMOLOGICAL NEWS. 353 



Observations on Uleela Rubs. (Dipt.). 



By E. P. FELT, Albany, N. Y. 



This genus was erected in 1908* for a remarkable, tailed, 

 midge larva, which latter was described as Uleella dalbergiae 

 and is therefore the generic type. The adult was then un- 

 known. Through the courtesy of W. H. Patterson, formerly 

 of the Agricultural School, St. Vincent, B. W. I., specimens of 

 practically identical larvae and adults were received. We deem 

 it advisable to place on record the generic characters of the im- 

 age at this time as well as to correct two earlier provisional 

 generic references. 



Adults of the genus Ulcclla have fourteen cylindric sub- 

 sessil antennal segments, the distal segment of the female re- 

 duced while the circumfili in the male are large and very irregu- 

 lar. The palpi are triarticulate. The third vein unites with the 

 margin at the apex of the wing. The terminal clasp segment of 

 the male is subapical and serrate distally, while the oviposi- 

 tor is short with feebly chitinized plates and a moderately stout 

 variably chitinized terminal portion. 



The slight reduction of the female antennae and of the palps 

 is along the same line, though not carried so far, as obtains in 

 Asphondylia; the terminal clasp segment indicates an affinity 

 with Cincticornia, while the circumfili are nearly identical with 

 those of Schizomyia. This genus is an exceedingly interesting 

 synthetic type. 



Uleella pisonifolia n. sp. 



This species was reared by W. H. Patterson, then of the 

 Agricultural School, St. Vincent, presumably in June, 1911, 

 from leaf galls on Pisonia nigricans. 



Gall. An irregularly oval leaf swelling 2-3 mm. long, the insects 

 escaping through a circular orifice at one extremity. 



Larva. Length, 1.5 mm. The young larva is cylindric, white, with 

 a small, moderately broad head, the antennae short and stout. The 

 breast bone is feebly chitinized, broad, tapering anteriorly and broadly 

 emarginate. The fourteenth segment has a diameter half that of the 



* Rubsaamen, E. H. Marcellia, -6; 120-21. 



