I20 MAINE AGRICUl.TURAl EXPJiRlAIENT STATIOxX. I912. 



hh. With o\'i.r 25 setae in this patch (Fig. 124). 



i. Abdoiaen variable dark ochreous, palpi yellojv- 

 ish, anterior veins dark ochreous. 



21. multiseta. 



ii. Abdomen variable dark brown ; palpi brown, 



anterior veins nearly black. 22. agraria. 



gg. Claspe r without terminal tooth (Fig. 123) ; the hy- 



popygium with the setae of the ventral median 



patch arranged in a transverse line (Fig. 123a) ; 



halteres black. 22,. jucunda n. sp. 



ff. Hypopygium without a tuft of setae on the median 



vent^ral line near the base. 



g. Clasper with about 5 large subequal teeth or spines 



(:^igs. 113, 119). 



h. Tip of Rs about .10 of wing length proximad of 



tip of Mo and ending proximad of .85 of wing 



length (Fig. 239); palpi and halteres dark; 



mesonotum shining black. 24. S. sp. 



hh. Tip of Rs less remote from apex of wing; costa 



produced fully 3-4 of distance from tip of Rs 



to Mi; coxae and halteres yellow. 



25. mitttta n. sp. 

 gg. Clasper of different structure. 



h. Petiole of cubitus short, less than half as. long -13 

 basal section of M. 

 i. Wing veins strongly marked; Rs ends distad oi 

 M2; costa produced about 1-2 of distance from 

 Rs .to Mi; thorax shining, 

 j. Halteres and coxae bright yellow. 



35. nigricans n. sp. 

 jj. Halteres fuscous, (Figs. 217, 260). 



36. acttiosa n. sp. 



ii. Costa produced over 1-2 distance from Rs 'o 



M], if not, then Rs ends proximad of tip of M2. 



j. Clasper with several apical teeth or spines. 



k. Clasper short, curved, with several apical 



teeth (Fig. 114) ; Ri ends at about 1-3 



length of wing; Rs and M2 end about 



equi-distant from base of wing (Fig. 



234) ; halteres yellow. 26. nacta n. sp. 



kk. Clasper with apical setae or spines (Fig. 



133, 261). 



I. Ri ends near middle of wing; costa pro- 



duced over half way to Mi. 



46. coprophila. 



II. Ri ends noticeably proximad of the mid- 



dle of the wing; costa produced scant 

 half way from Rs to Mi (Fig. 267). 



S2. cucumcris n. sp. 



