ZENILLIA AND ALLIED GENERA — SELLERS 27 



pairs of marginal scutellars, one pair of discal scutellars; midtibia 

 with one median anterolateral bristle, male lacking and female with 

 one inner ventral bristle; hind tibia weakly ciliate with one longer 

 bristle ; wing with two or three bristles at base of third vein. 



Abdomen with venter gray-pollinose on segments 1, 2, and 3 ; basal 

 three-fourths of segments 2 and 3 and fourth segment almost entirely 

 golden-brown pollinose; in certain reflections, dorsum of segment 3 

 of female with one or two green patches; dorsum of first segment, 

 apical borders of segments 2 and 3, and the tip of segment 4 shining 

 black ; first and second segments with a pair and the third and fourth 

 with a row of marginal macrochaetae ; second and third segments with 

 a pair and fourth with a row of discal macrochaetae. 



Hypopygium brown ; inner and outer forceps of the same length ; 

 outer forceps broad and leaf shaped, inner forceps blunt and spoon or 

 cup shaped, narrowing toward the center and then broadening 

 apically. 



Type locality.— Casahuiri San Gaban Canyon, Peru. 



Distribution. — Peru 2. 



Type.— Female, U.S.N.M. No. 19611. 



Host. — Unknown. 



Remarks. — The material examined consisted of the type female, 

 Casahuiri San Gaban Canyon, mountains of southeastern Peru, 4,500 

 feet, February 4, 1910 (Townsend) ; one male K. Charape, Peru, 

 4,500 feet, September 13, 1911 (Townsend). 



The male that Townsend called the allotype does not belong here. 

 The type female is not abnormal and is very similar to the male 

 from Peru whose hypopygium has been described above. The chaeto- 

 taxy and coloration agree, and the two forms should be associated as 

 the same species. 



17. ZENILLIA LINEATA (Van der Wulp), new combination 



Mystacella lineata Van der Wulp, Biologia Centrali-Aniericana, Diptera, 



vol. 2, p. 54, 1890. 

 Exorista coeruleiventris Van dee Wulp, Biologia Centrali-Americana, Diptera, 

 vol. 2, p. 64, 1890. 



Remarks.— The writer had the privilege of examining the type ma- 

 terial consisting of one male and one female of Mystacella lineata 

 Van der Wulp and one female of Exorista coeruleiventris Van der 

 Wulp. The females of both species are the same, which would con- 

 firm the synonymy. 



All three specimens were noted as having four postsutural clorso- 

 central macrochaetae, whereas the type specimen of Zenillia taglinoi, 

 which Aldrich labeled "Exorista coeruleiventris V.d.W." "comp. type 

 J.M.A." has only three postsutural dorsocentral macrochaetae. 



