178 PROCEEDINGS OF THE ACADEMY OF [1898. 



there are no prominent bristles ; in the mesal flexor row there are 

 about four prominent bristles and these are larger in female than in 

 the male. 



Middle Leg. — Femur : as usual. Tibia : the anterior surface, a 

 little apicad the middle, has one large bristle ; the posterior surface 

 has two rather smaller, one at the middle and one near the apical 

 end of the basal third ; flexor surface has one at about the junction 

 of the middle and apical thirds. 



Hind Leg. — Femur: as usual. Tibia: the lateral extensor row 

 has from three to five prominent bristles and the mesal extensor row 

 two, of which one is very near the middle and the other in the 

 basal quarter; no prominent bristles in either flexor row. 



Genus PAROCHROMYIA. 



The species to be here described would find its place in the table 

 of Brauer and Bergenstamm 1 between Ochromyia and Zovochroa. 



The eyes of the male are very close together but not in contact 

 and the male has no transfrontal bristles above the middle point be- 

 tween the base of the antennas and the vertex. Both sexes have 

 ocellar bristles. Both sexes have abdominal marochsetas at the sides 

 of each segment, on the hind margin of the third segment (appressed 

 and delicate), and on the fourth ; the male also has some on the 

 hind margin of the second but they are more delicate than those of 

 the third. The female has one fair sized orbital bristle at the upper 

 part of the geno-vertical plate and, extending ventrad from this, a 

 series of very delicate, minute bristles or hairs which extend along 

 the whole of the geno-vertical plate and on the gena about half way 

 to the end of the arm of the frontal suture. 



In Girschner's system I should place this species among the Cal- 

 liphorinse with the description of which it agrees 2 except that it has 

 three posterior intra-alar bristles. The sterno-pleural bristles have 

 the arrangement 1-1. I can not make out the arrangement of the 

 second ventral segment. 



Parochromyia varia nov. sp. 



Three males and three females, taken March 10, 1894, Nov. 17, 

 1894, Sept. 3, 1895. A pale yellowish- brown fly about 6.5 to 7.5 

 mm. long. The wings are notably broad and extend a little 

 beyond the apex of the abdomen. 



'Vorarbeiten zu einer Monogr., etc, Pars III, p. 90, (178). 

 2 Separat-Abdruck aus der Illustrirten Wochenschrift fur Entomologie, Vol. 

 I, 189H, p. 14. 



