NO. 1938. THE DIPTEROUS FAMILY PHORID^—MALLOCH. 501 



3. Ovipositor very broad, horseshoe shaped, bilobed spatulata, p. 502. 



Ovipositor not horseshoe shaped 4. 



4. Ovipositor more than twice as long as broad at base, the second row of frontal 



bristles almost straight and nearly equidistant from each other. 



crawfordi, p. 501. 

 Ovipositor of female but one-half longer than broad at base, center pair of bristles 

 in second row placed much higher than outer pair and very close together. 



curriei, p. 501. 



TABLE OP MALES. 



Sixth abdominal segment elongated, without any large bristles, hypopygium 

 weakly haired, anal protuberance not longer than sixth segment. 



curriei, p. 501. 



Sixth abdominal segment not lengthened, a circle of distinct bristles at beyond 

 middle, several hairs attached to portions of partly visible organs of hypopy- 

 gium, anal protuberance longer than sixth segment, with two long curved 

 terminal bristles antiguensis, p. 502. 



The species in tliis group have two to four post-antennal bristles, 

 and four rows of frontal bristles, the lower row consisting of two 

 lateral, the second of four in a more or less straight row, the third 

 in front of ocelli of four, and the vertical row of four. 



PLASTOPHORA BEmNE Brues. 



Described from New Guinea. The peculiar proboscis and large 

 size should distinguish this species should it ever turn up in this 

 country, which is most unlikely. 



PLASTOPHORA FORMICARUM Verrall. 

 Plate 39, fig. 6. 



A very small species closely allied to curriei, but the outer bristles 

 in the second row are closer to the pair in first row in curriei, the 

 hind tibiae are described as bare, and no mention is made in the de- 

 scription of the disparity in size of the scutellar bristles that exists 

 m curriei. Not recorded from America. 



PLASTOPHORA CRAWFORDI Coquillett. 

 Plate 39, figs. 5, 8. 



Described from Texas. It attacks the ant Solenopsis geminata. 

 Distinct from the above and next species in the position of the frontal 

 bristles. The ovipositor of female is distinct from that of curriei 

 and spatulata. Several specimens in collection, Dallas, Texas 

 (Crawford). 



PLASTOPHORA CURRIEI, new species. 

 Plate 39, figs. 4, 9, 10, 12. 



This species is in general appearance very similar to crawfordi, 

 but differs as stated in the table. The fringe of costa is rather longer 

 in curriei than in crawfordi, the costa is in both species short of the 



