E. T. CRESSON, JR. 
65 
Dichaeta caudata Fallen FI. II, fig.s. 7 to 11. 
1813. Noliphila caudata Fallen, Acta Holm., 1813, 249. 
1830. Dichaeta caudata Meigcn, Syst Beschr., vi, G2, (Iviii, 1-6). 
?18G0. Dichaeta brevicauda Loevv, Neii. Beitr., vii, 5. 
Description. — Black; palpi apically, third antennal joint rarely at ba.se, and 
tarsi, tawny; fore tarsi sometimes dark ; halteres yellow. Wings hyaline with 
veins, especially posterior cross vein, clouded. 
Opaque, abdomen and mesonotum somewhat shining, brownish pruino.se; 
face rarely golden. Occiput, thora.x anteriorly, anterior rudiments of four 
mesonotal vittae, pleural spot, apices and median stripe of abdominal seg- 
ments, more or less obscure grayish or olivaceous. 
Eyes vertical. Frons convex, broader than long with orbits parallel. Face 
vertical in profile, flattened or weakly convexed, nearly as broad as vertex, 
about twice as long as broad, weakly if at all carinate. Two to four stout 
bristles on lower half. Cheeks hardly as broad as third antennal joint. An- 
tennal spine strong, nearly as long as third joint; third joint rounded apically; 
arista with eight to twelve hairs. Scutellum flat. Abdomen elongate ovate; 
segments successively increasing in length. Wings as figured. Length. — 
3 to 4 mm. 
Type . — Described from Europe. 
Specimens Examined. — 26 cf , 24 9 . 
Can.^d.i: Toronto, Ontario, VII, 4, 1913, (M. C. VanDuzee), 1 9, [VanD.]. 
Oxbow, Saskatchewan, V, 1.5, 1907, (F. Knab), 1 cf , [U. S. X. M.]. 
Massachusetts: Provincetown, VI, 25, 1904, (C. W. Johnson), 2 cf , 2 9 , 
IB. S. N. H., & Kans.]. 
Connecticut; (S. W. Williston), 1 9, [Kans.]. Xew Haven, VH, 27, 
1907, (P. L. Butrick), 1 c^, [B. S. N. II.]. 
Pennsylvania; Swarthmore, IV, 21, 1907, (E. T. Cresson, Jr.), 3 9, 
[Cress.]; V, 4, 1907, (E. T. C. Jr.), 1 c^, [Cress.]. 
New Jersey: Clementon, V, 5, 1907, 2 9, [A. X. S. P.]. 
Maryl.xnd: Bay Bidge, VIII, 20, (X. Banks), 1 d', [Banks]. Cabin 
John Bridge, IV, 23, 1914, (R. C. Shannon), 2 9, [U. S. X. AI.]. Chesapeake 
Beach, VII, 27, 1913, (R. C. Shannon), 3 d^, 2 9, [U. S. X. AI.]. Glymont, 
V, 25, 1896, 3 <d, [Johnson & Kans.j. Xear Plummer’s Island, V, 4, 1915, 
(R. C. Shannon), 1 d, [U. S. X. AI.]. District of Columbia, VUI, 19 to 30, 
1899, 2 d,l 9 , [Ohio]. Rock Creek, District of Columbia, X, 26, 1913, (R. C. 
Shannon), 2 d, [U. S. X. AI.]. 
A'irginia: Dead Run, Fairfax County, XI, 18, 1913, 1 9 ; IV, 18, 1915, 
1 9 ; V, 23, 1915, 1 9 ; all (R. C. Shannon), all [U. S. X. AI.]. Rosslyn, IV, 
23, 1913, 1 d, I 9, V, 8, 1913, 1 9 , all (R. C. Shannon), all [U. S. X. AI.]. 
Ohio, all [Ohio]; Ashtabula, 1 9. Aledina, V, 21, 1 9. Sandusky, 
VII, 1914, 1 d. Wauseon, VIII, 25 to IX, 17, 1902, 3 cf. 
Illinois; AlcIIenry County, IX, 19C3, 1 9, [Wash.]. 
XoRTH Dakota: Fargo, V, 10, 1901, 3 cf, 1 9, [Ohio]. 
Idaho: Potlatch, VI, 20, 1907, (J. AI. Aldrich), 1 9, [Aldrich]. 
Oregon: Oregon City, IX, 1 d, [Wash.]. 
TRANS. AM. ENT. SOC., XLIII. 
6 
