524 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 113 
example, Czerny described aldrichit under Eccoptomera, whereas its 
characters are such that Garrett would probably have called it 
Viatica. ‘The presence or absence of spines or teeth on the male 
hypandrium and setae on the scutellum appear to be the only char- 
acters which could be used to maintain the distinction between the 
genera, but I do not consider these characters to be of generic rank. 
I have examined the following Palearctic species of Eccoptomera, 
none of which agree with any of the species described below: emargin- 
atum Loew, jiliata Loew, infuscata Wahlgren, longiseta (Meigen), 
obscura (Meigen), ornata Loew, pallescens (Meigen). 
Key to the Species of Eccoptomera 
1. Scutellum with setae... . se a ay Bt Ue 
Scutellum bare, except for Haney 2 pairs of itera brietles POUR EM tt. Mc. a S) 
2. Cheek-eye ratio usually more than 1.0; 1 to 3 rows of very sparse setae between 
dorsocentral bristles .... . . . simplex Coquillett 
Cheek-eye ratio usually less than 1. 0; 5 or more rows of numerous setae between 
dorsocentral bristles) “.05 @ 1.0 2 avs, de. agus, ie) ogee mss ane 
3. Ventral edge of epandrium of fale with Gonepintees fee of hairs. 
callipus Garrett 
Ventral edge of epandrium of male without conspicuous fringe of hairs. . 4 
4. Epiphallic process of male gradually tapering toward distal end. 
garretti, new species 
Epiphallic process of male bluntly rounded bapa not gradually tapering to 
anarrow tip. . . LA . . . . erypta, new species 
5. Cheek-eye ratio from 0.5 5 te 0. 7 Ba Ne rey coy CPR Bete A 6 
Cheek-eye ratio from 0.73 to 0.85 .......4.4.4.. “aldricht Crane 
6. Thorax bluish gray. ....... «4s +»... » «, melanders (Garrett) 
PPHOTaxXsDrOWMISH 565.4. 5. 2 eas we ee ee Gs. SS pMOsanGcmrene! 
Eccoptomera simplex Coquillett 
FIGurE 28 
Eccoptomera simplex Coquillett, p. 32.—Czerny, 1924, p. 93. 
Eccoptomera americana Darlington, in Aldrich and Darlington, 1908, p. 74 
(part). 
The small eye is the distinguishing character of this species. 
MALE AND FEMALE.—Head higher than long, mostly yellow except 
for dark brown arista; a nearly vertical vitta usually present on each 
side of back of head from inner vertical bristle to cervical foramen; 
anterior fronto-orbital bristle very weak or undifferentiated from the 
frontal setae; oral vibrissae strong, a single row of buccal setae; 
cheek-eye ratio from 0.93 to 1.4; surface of eye with ‘‘flattened”’ 
appearance. 
Remainder of body yellow to brownish yellow, mesonotum darker 
than pleura; dorsocentral bristles 1+3, 1 to 3 rows of very sparse 
setae between the dorsocentrals; sometimes evidence of a median 
