W. (;. DIETZ 
2.37 
Subfamily P.hyphinae 
( U'lms RHYPHUSLafrc'ille 
Rhi/phufi Latreillo, Hist. Xat. Crust,, ot Ins., ISO.^, xiv, p. 2!(1. 
Rhyphus punctatus I''al)ricius, Mant. Ins., ii, p. ■i'oo (Rluigis)', Ent. Syst., 
IV, p. 274; (id.) Syst. .\ntl., p. .'>!) (Sciard). 
.luiio 25, 1905; July 3, lOOO; Sepieiiiber 7, 1010. 
Family T I PULI DA F 
Subfamily Limnobiinae 
'bribe lAttniohii ui 
Ceuns GERANOMYIA Ilaliday 
(hraiioniijia Ilaliday, Ent. Mag., i, p. 154, lSo3. 
Geranomyia rostrata Say, .lonni, .Vcad. Nat. Sci. I’lnla., iii, p. 22, 182.3; 
(V)inpl. W'orks, ii, p. 47 (Liinnohui). 
.lime to September. In wet places; nut common. 
Geranomyia canadensis W'estwooil, Ann. Soc. Ent. France, i\', p. (184, 183.5 
( Linin(>l)i()rhync}iua) . 
August, Septemlier. Rather common in swampy situations. 
Geranomyia costomaculata spec. nov. 
Dark fuscous. Thoracic stripes obliterated. Costal margin of wing with 
three fuscous spots. Sc ends opjiosite origin of Rs. 
Female, length, 5. .5 mm.; wing, 6.5 mm. 
llearl dark fuscous; rostrum about as long as the thorax, thickened about 
the palpal insertion. Scajial joints of the antennae stout, first joint pale 
and about one-half longer than the second joint, this and the flagellum dark 
brown; flagellar joints moniliform, the outer joints somewhat elongated and 
altenuated. Thorax fuscous, overlaid with a grayish bloom; strii)es obsolet.e. 
Scutel whitish. Pleura conc<jlorous. Halters jiale, knoli and end of p<‘ilic(4 
dark fuscous. Wings pah'-gray, semipelluciil; the Sc ends a trifle beyond 
the origin of the sector, the latter markedly curved at its base; the basal de- 
flection of Cu, at the fork of M in the left wing, a little before the forking; 
a dark fuscous costal spot at about one-third the wing length, a second at the 
origin of Rs inclusive of end of the subcostal vein, a third spot, large, rhom- 
boidal, includes the stigma. Legs pale fuscous, long, slender; femora, tibiae; 
and tarsal joints darker apically. Abdomen brown, sparsely hairy. Ovi- 
liositor pale brown, and rather short. 
Holotype . — 9; Hazleton, Pemisylvaiiia. May 27, 1020. 
TU.VNS. AM. EXT. SOC., XLVII. 
