ART. 17. ^'ORTH A.MERICAX PHOROCERA ALDRICH AND WEBBER. 77 



PHOROCERA ERECTA Coquillett. 



Phorocera parva Bigot, Coquillett, Revis. Tacliin., 1897, p. 103. 



Phorocera erecta Coquilett, Proc. U. S. Nat. Mus., vol. 25, 1902, p. 112. — 

 Gibson, Rept. Ent. Soc. Ontario, 1918 (1919), p. 117.— Britton, Check- 

 List Ins. Conn., 1920, p. 193. — Greene, Proc. U. S. Nat. Mus., vol. 60, art. 

 10, 1922, p. 11, fig. 52 (puparium). 



Exorista loxostegeae Reinhabd, Annals Ent. Soc. Amer., vol. 14, 1921 

 (1922), p. 331. 



Front of male 0.29 (average of three 0.27, 0.30, 0.29) and in the 

 female 0.32 (average of three 0.34, 0.33, 0.30) the head width; sil- 

 very pruinose, slightly blackish at vertex ; the sides destitute of ma- 

 crochaetae outside of the frontal row ; frontal vitta about as wide as 

 either parafrontal; facial ridges bristly about seven-eights of the 

 way sometimes much less so ; face silvery pruinose, the sides at the 

 narrowest part one-fifth the width of the median depression; bucca 

 one-fifth or less of the eye height ; palpi black ; antennae black, nearly 

 as long as the face, the third joint in male six and in the female 

 about four times the length of second, arista thickened on the basal 

 third, the penultimate joint about as broad as long. Thorax black, 

 gray pollinose, marked with five black vittae, the middle one very 

 narrow, the outer ones broken at the suture; four dorsocentral ma- 

 crochaetae; scutellum black, often yellowish at the tip, bearing two 

 long and one short pairs of marginal bristles, and a pair of erect api- 

 cals. Sternopleura with four bristles. Abdomen black, the bases 

 of the last three segments thinly gray pollinose, the pollen often ex- 

 tending nearly to the apex, sometimes the sides of the intermediate 

 segments reddish. First segment with one pair of median marginals, 

 the second with one pair discal and one pair median marginals, the 

 third with discal and a marginal row, the fourth with upright bristles 

 and two rows of macrochaetae, one at the apical half and the other 

 at the extreme apex, abdominal hairs depressed. Legs black, mid 

 tibiae with one bristle on the outer front side near the middle ; hind 

 tibiae ciliate, with one longer bristle. Wings hyaline, apical cell 

 open, third veing bearing one or two bristles at its base. 



Length 6 to 8 mm. 



Redescribed from the type specimen and thirteen others, of both 

 sexes, including a set of four paratypes of loxosteaeae. presented to 

 the Museum by Mr. Eeinhard. The type is a female, and there is a 

 male bearing the same Bureau of Entomology numbef, 439L: they 

 were reared from Loxostege similalis Guenee from Camden. Arkansas. 



Other specimens are from Los Angeles, California (Coquillett) (pre- 

 sumably a paratype) ; Harrison, Idaho (Aldrich) ; Victoria. Texas, 

 bred from Loxostege similalis Guenee (McCarthy) ; Kennewick, 

 Washington, bred from leaf roller (Newcomer) ; Mountain Grove, 

 Missouri (8omes) ; AVichita, Florida "parasite of Epicauta (?) on 

 beet." Eeinhard reared his material from Loxostege simi'alis Guenee. 

 The species has also been identified by the senior author in m;iterial 



