E. T. CRESSOX, JR. 
53 
seen from above, the olivaceous abdomen with the more opaque 
bands becoming narrower laterally, and the yellow tarsi, espe- 
cially of the middle and hind legs, are the characters that seem 
to be of most value. The species seems to be very similar to 
the European uliginosa Haliday, which I have not seen, but is 
probably distinct. The females are difficult to separate from 
those of macrochaeta, so the description and notes under that 
species should be consulted. 
Description, cf. Black; halteres, base of wings, middle and hind tarsi, 
yellow or tawny. Tarsal fascicle yellow. Wings hyaline with yellow or 
brownish tinge and yellow veins. 
Opaque: ochreous or olivaceous above to cinereous below. The two broad 
frontal vittae and dash below ocellus, blackish. Face golden yellow, sericeous; 
cheeks and occiput gray. Mesonotum, scuteUum and pleura immaculate or 
with faint brown markings. Abdominal segments three to four with narrow 
opaque or subopaque brown basal bands, which are sh'ghtly dilated medianly 
and attenuated laterally, rarely attaining apices of segments; segment five 
shining black with median and lateral gray stripe. Femora and- tibiae 
grayish. Length. — 4 to 5 mm. 
Holotype.—d'; Sandusky, Ohio, July, 1914, [Ohio Univ. Coll.]. 
Paratijpes.—2 cT, 6 9 ; topotypical. 
Speci?nens Examined . — 13 d^, 21 9 . 
Canad.\: Toronto, Ontario, VII, 4, 1913, (M. C. VanDuzee) 2 d’ 3 9 
[VanDuzee]. ’ ^ 
Massachusetts: Barnstable, VII, 9, 1 cf, [B. S. N. H.]. Nantucket, 
VII, 20, 1910, 2 cf, [B. S. N. H.]. Provincetown, VI, 24, 1904, (C. W John- 
son), 3 d', [B. S. N. H.]. 
New York: VI, 23, 1893, (E. B. Southwick), 2 9 , [U. S. N. M.]. Ithaca, 
1 9 , [C. U.]; VII, 16, 1905, 1 9, [Johnson]. 
New Jersey; Cape May, VI, 17, 1914, (H. S. Harbeck), 1 9, [Harbeck]. 
Manahawkin, VIII, 3, 1912, (H. S. Harbeck), 1 9 , [Harbeck]. West Orange. 
VI, 1 9 , [Harbeck]. 
Ohio: Sandusky, VI, 30, 1 9, [Ohio]; VII, 1914, 3 cf , 6 9, [Ohio]. 
Illinois: Havana, Thompson’s Lake, IX, 1, 1910, (sandy beach), 1 cf, 
[111.]. Payette, VIII, 27, 1907, (E. G. Titus) 1 o’, [Johnson]. 
?Texas: Galveston, V, (F. H. Snow), 2 9, [Kans.]. 
?Mexico: Guadalajara, VI, 24, 1907, (McClendon), 1 9 , [A. N. S. P.]. 
Variations.— A female, “12 m. N. W. of Lusk, Wyoming, Jul. 
1895, [Kans.], may not belong here and so is not included in the 
above list. It is more uniformly grayish with abdominal spots 
nearly obsolete. The Mexican specimen may prove to belong 
to another species, but I cannot differentiate it from the others. 
TRANS. AM. ENT. SOC., XLIII. 
