. Monographs of the Diptera of North America [microform]. Diptera; Insects; Diptères; Insectes. ORTALID^—RIVELLIA. 89 Ortalh Ortoeda Walk. List, IV, p. 992. Orlitlis (jiiodri/dsciala Walk. List, IV, p. 993. llerina ri{/itar»is Macq. Dipt. Kxot. Suppl. V, p. 123, 7. Te/ihritis meUiijinis FiTcu, First Rep. 05. Dlackish-giTcn, sliining; tlie upper side of the thornx sometimes less so; recently excluded Rpecimens accpiirc a suiiiewlint steel- blue tinge after drying. Front reddi.«li-l>n)wn, often very dark, of the usual breadth, with a very narrow border of wiiite pollen on each side. Face and
. Monographs of the Diptera of North America [microform]. Diptera; Insects; Diptères; Insectes. ORTALID^—RIVELLIA. 89 Ortalh Ortoeda Walk. List, IV, p. 992. Orlitlis (jiiodri/dsciala Walk. List, IV, p. 993. llerina ri{/itar»is Macq. Dipt. Kxot. Suppl. V, p. 123, 7. Te/ihritis meUiijinis FiTcu, First Rep. 05. Dlackish-giTcn, sliining; tlie upper side of the thornx sometimes less so; recently excluded Rpecimens accpiirc a suiiiewlint steel- blue tinge after drying. Front reddi.«li-l>n)wn, often very dark, of the usual breadth, with a very narrow border of wiiite pollen on each side. Face and clypeus njetallic black; the narrov/ lateral portions of the face, bordering on the eyes, l)rownish-red, more seldom dark-brown. Antennae reaching to the edge of the mouth, brick-red or yellowish-red; the third joint gradually turning black towards the tip. Ovipositor and feet black; the tips of the four anterior tibiae usually brownish brick-red ; the first joint of the two front tarsi and the first two joints of the four posterior tarsi pale brick-red. Crossbanda of the wings black, rather narrow; the first three, which are entirely sepa- rated from each other, reach from the anterior margin to the fifth longitudinal vein ; the fourth band, bordering the end of the anterior margin and the apex, is often connected with the third only by a rather narrow black border of the anterior margin ; the portion of the costal cell between the first and the second cross- bands has a dingy, somewhat yellowish appearance. The small crossvein is far beyond the middle of the discal cell and the second section of the fourth longitudinal vein is very much arcu- ated. Haltores black. Hah. New York; Georgia; Distr. Columbia (Osten-Saeken). Obi^crvatioti 1.—The attentive reader of Walker's description of Ortalis Ortoeda will easily notice that, before the end of the fourth line, previous to the comma, several words have been accidentally omitted, so that the end of the sentence does not ref
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