No. 64] DIPTERA OF CONXECTICUT : TAXONOMY 299 



3. Mouth parts, and especially the labial palpi, lengthened, the rostrum thus 

 formed much longer than remainder of head and usually about as long as 



the combined head and thorax (Fig. 34, C) Limonia: Geranomyia 



Mouth parts, with the labial palpi, not notably lengthened, shorter than re- 



mair.der of head 4 



A. An.tennae (male) more or less branched (bipectinate, unipectinate. or sub- 

 pectinate. Fig. 34, F, G) ; of female simply serrate, sometimes weakly so. 



Limonia: Rhipidia 3-2^ 



Antennae simple in both sexes 5 



5. Wings with vein 6\- short, Sci ending opposite or before origin of vV.?. 



Limonia: Dicranomyia 3'0 

 Wings with Sc long, Sci ending beyond midlength of Rs (Fig. 15, A). 



Limonia: Limonia 



Subgenus Limonia Meigen 



Key to Species 



1. Wings with numerous macrotrichia in all cells beyond cord fusca 



Wings without macrotrichia in cells of wing 2 



2. W"ings unmarked, except for stigma when this is present; size small (w., 



6 mm. or less ) 3 



Wings patterned (except in sociahilis) ; size large (w., 7 mm. or more, 

 usually over 10 mm. ) 4 



3. No stigmal spot or brown seams to veins ; free tip of Sc2 lying markedly 



basad of Rn, the latter thus appearing decurved into R2+:i\ tarsi brown. 



globithorax 



Stigma evident, brown : paler brown seams along cord and outer end of cell 

 1st M-2\ free tip of Sc and R2 in transverse alignment; intermediate 

 tarsal segments on all legs whitish macateei 



4. Wings subhyaline, with abundant brown spots and dots in all cells. .. .simulans 

 Wings with clouds larger, confined to vicinity of veins ^ 



5. i?i+2 and R2 subequal in length o 



/?i+2 two or more times as long as R2 ^^ 



6. Legs uniformly dark brown rara 



Legs chiefly yellow, the femora banded with dark brown, in rare cases 



the legs uniformly pale yellow 7 



7. Wings yellow, with three eye-like brown markings, placed at origin and 



fork of Rs and at stigma ; femora yellow, the tips narrowly dark brown, 



in rare cases uniformly pale tnocellata 



Wings without such an ocelliform pattern ; legs with one or mere dark 

 femoral rings basad of the darkened apex (this subtermina! dark ring 

 only feebly indicated in novae-angliac) 8 



8. Knobs of halteres pale at tips ; male hypopygium with dististyles separate 



almost to base; gonapophyses with apical hair-brushes (Fig. 34, H) 9 



Knobs of halteres uniformly brownish black to black; male hypopygium 

 with dististyles fused on basal half; gonapophyses without setae (except 

 in hudsonica) (Fig. 34, L) 10 



9. Femora with two brown rings cinctipes 



Femora with three brown rings immatura 



10. Wings with a large dark spot in cell R at mid-distance between the arcular 



area and the mark at origin of Rs ; male hypopygium with setae on 



.sjonapophyses hudsonica 



Wings without such a spot, being either immaculate in this field, or else 

 with a series of three or more small dots in cell R ; male hypopygium 

 with glabrous gonapophyses (Fig. 34, L) H 



11. Wiijgs with cell R unmarked between the arcular and radial darkened 



areas; subterminal dark femoral band obsolete or barely evident 



novae-angliae 



Wings with small dots ir. a linear series in cell R : subterminal dark femoral 



band oresent 



