316 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 4S. 



they are sometimes appressed to the surface and are almost indistin- 

 guishable from the bristly hairs of abdomen. Normally all the 

 abdominal macrochsetae are erect. The marginal bristles of third 

 segment in female consist of one strong median pair and two lateral 

 ones on each side. The first segment and broad hind margin of 

 second and third segments of female are black; segments two and 

 three of male more narrowly black on liind margin; anal segment in 

 male tipped with reddish-yellow, in female more broadly so. Piercer, 

 ventral carina and spinulae practically same as in Dexodes. Legs 

 blackish, femora faintly poUinose, claws of male elongate. Wings 

 clear, tegulse whitish. 



Type.— Cat. No. 15154,' U.S.N.M. Female, April 5, 1911; TD 

 4025,/. r. s., piercer and larvipositor. 



Cotype, female, June 22, 1910; TD 3906, m., cph. sJc. 



Deposits maggots subcutaneously in host. 



DEXODES MERIDIONALIS, new species. 



Length of body, 7 mm.; of wing, 5.5 mm. One female, Piura, 

 Peru, July 17, 1910, on foliage. 



This form is quite typical of the genus Dexodes, having the elongate 

 second antennal joint, the bare facialia save for about three bristles 

 next vibrissas, and the eyes thinly and faintly hairy. The description 

 is from the single female specimen. 



Head silvery cinereous, the parafrontals and cheeks with a faint 

 golden tinge. Frontalia bro\vn, antennae wholly dark brown. Palpi 

 reddish-yellow. Ocellar bristles atrophied, represented by two 

 delicate hairs. 



Three sternopleural and tliree postsutural bristles. Pleurae silvery- 

 cinereous, mesoscutum and scutellum with the same faintly golden 

 pollen as front, the usual five vittje on formei'. Scutellum with tliree 

 lateral pairs of strong bristles, a weak decussate apical pair, and a 

 weak discal pair. Abdomen blackish, the second to fourth segments 

 silvery pollinose on irregular anterior half extending on venter. 

 First segment with a short median marginal pair of bristles; second 

 segment with a short discal and longer marginal median pair; third 

 segment with a stronger discal pair and a marginal row of eight strong 

 bristles; anal segment with a discal median and a discal lateral pair 

 besides the marginal row; all the macrochaetae erect. The piercer, 

 ventral carina, and spinulae of latter characteristic of Dexodes. 

 Wings clear, tegulae whitish. 



Type.— Cat. No. 15155, U.S.N.M. TD 3930, m. 



Deposits maggots subcutaneously in host. 



