NO. 2018. SYNOPSIS OF GENERA OF AOROMYZIDM— M ALLOC H. 141 



numerous pale hairs. Wings smoky gray; ventation similar to that 

 of mttata, except that the penultimate section of fourth vein is slightly 

 longer than the penultimate section of third. Halteres yellow. 



Length. — 1.5 mm. 



Type.— Cat. No. 15748, U.S.N.M. 



Locality. — Springer, New Mexico (C. N. Ainslie), Webster No. 

 5554. One female. 



The two species described herewith are very close in general appear- 

 ance, but may be separated readily by the number of dorso-central 

 bristles. 



Genus PARAMYIA Williston. 



Paramyia WiLLiSTON, Kans. Univ. Quart., vol. 6, 1897, p. 1. 



This genus was erected by Williston for the reception of P. nigra, 

 new species. In most respects it is very close to PhyUomysa, although 

 Williston compared it with PTiytomyza. The genus belongs without 

 doubt to the MilicMnse and Loew's species PTiyllomyza nitens is con- 

 generic with nigra Williston. This is the only genus so far described 

 in MilicMnse that has the posterior cross vein absent. I give a copy 

 of Wniiston's description of nigra and describe nitens from specimens 

 in the U. S. National Museum collection. 



PARAMYIA NIGRA Williston. 

 Paramyia nigra Williston, Kane. Univ. Quart., vol. 6, 1897, p. 2. 



Female. — Black. Front opaque, with a long shining triangle, reaching nearly to 

 the front border. Face more yellowish; in eome reflections silvery on the sides. 

 Proximal portion of the proboscis piceous; distal portion yellowish. Thorax shining; 

 mesonotum with rather abundant, short, black hair. Abdomen less shining than the 

 mesonotum. The knees narrowly, the front and middle tibiae and tips of the hind 

 tibise, and all the tarsi yellow. Wings tinged with brownish. Length 2J mm. 



One specimen, Grenada, H. H. Smith. 



In most respects Williston's description of his genus fits nitens 

 but he used some characters in defining the genus which are of only 

 specific value as for instance the number of scuteUar bristles, and their 

 position, as well as the course of the wing veins. These characters 

 might have been used to better advantage in his description of the 

 species. 



PARAMYIA NITENS Loew. 



Plate 4, fig. 7. 

 Phyllomyza nitens Loew, Dipt. Amer. Sept. Ind. Cent., 8, 1861, species 82. 



Male and female. — Black, legs brown, knees and tarsi yellowish. 



Frons slightly over one4ialf as wide as head in male, distinctly 

 wider in female, posteriorly the sides are divergent; orbits narrow, 

 glossy black, generally four orbital bristles present, the lower two 

 pairs incurved, the upper pairs curved outward; oceUar region 

 slightly raised, glossy black; ocellar triangle glossy black, narrow. 



