470 COXXPXTICUT GEOL. AXD NAT. HIST. SURVEY [Bull. 



(Apr. -mid-June) X. H., Vt., Alass., N. Y., X. J., westw. to Ohio, Ind. and Mich., 

 .southw. to Va., Tenn., X^. C. and S. C. 



Connecticut.— Xorfolk, May 16, 1931 (C. P. A.). 



O. ithacana Alex. (Fijj;. 53.1). 



VJ-2U. Ormosla ithacona Alexander: Bull. Brooklyn Eiit. Soc. -24: "29. 



Belongs to the meigenil group: closest to mcigenii, ditiering espe- 

 cially in the structure of the nuile hypoj^vgiuni (Fig. 58.1). S. L. 

 3.8-4.2 mm. ; w. 5-5.5 mm. 



(Late Apr.-early May) X\ Y. 



O. luteola Dietz 



191(j. Ormosla luteola Dietz; Trans. Amer. Ent. Soc. 42: 138-139. 



Fig— Dietz, Ibid., pi. U), fig. 4 (hyp., diagramm.) ; 1916. 



Belongs to the nl<jrlpila group, lliorax. including coxae, yellow 

 to reddish yellow. Antennae generall}' pale, the outer segments dark- 

 er. Wings broad, with a grayish brown tinge, the stigmal region 

 darker. 6. L. 4-5.5 nnn. : w. 4.5-() nun. 9. L. (')-(). 5 mm.: w. ()-7 

 nnu. 



(June-Sept.) Me., X. H., \'t., Mass., Ct., X. Y., Pa., westw. to Mich. 



Connecticut.— East River, Tune 19, 1911 ( Elv ) ; Tunxis State Park, Julv 23-24, 1931 

 (C.P.A.). 



O. manicata (Doane) 



1900. lilijjpJiolophus manivatus Doane; Journ. X. Y. Ent. Soc, 8: 187. 



191G. Onnoaia devuda Dietz; Trans. Amer. Ent. Soc. 42: 143-144. 



Figs.— Dietz, Ibid., pi. lU, figs. 9, 9A (hvp., diagramm.) ; 1916. Alexander, Cfls. 



X. Y., 1. pi. 34, fig. 60 (wing) ; 1919 (as rubella). 



General coloration reddish brown, the prae.scutum more grayish 

 l)i-own medially. Antennae relatively short, with long conspicuous 

 verticils. Halteres with weakly darkened knol)s. AVings with a gray- 

 ish tinge, the stigma pale brown. 



Readily told from all other regional species by the profoundly 

 divided ninth tergite and the needle-like gonapophyses. Allied species 

 occur in western North America and in Japan. S . L. 4-4.5 mm. : w. 

 5-5.5 nnn. 9. L. 5 mm.; w. 5-5.5 mm. 



(May, June; Aug.-Oct.) Ont., Que., X. B., X. S., Me., X. H., \'t., Mass., X. Y., Pa.., 

 westw. to the Pacific States. 



Connecticut.— Granbv. Tune 8, 1929 (CP. A.); Kent Falls, Mav 30-31 June 12-13 

 1931 (C. P. A.) ; Putnam, Tune 15, 1933 (C. P. A.) (in bog) ; Riverton, Mav 30, June 

 12, 1931 (C. P. A.); Twin Lakes, Sept. 12, 1928 (C. P. A.) ; Tvler Lake,' Tune 13, 

 1931 (C. P. A.). 



O. megacera Alex. (Fig. 54. A). 



191G. Ormosia divergens Dietz; Trans. Amer. Ent. Soc. 42:144-145 



(nee divergens Coquillet, 1905). 

 1917. Oi'ino-na megacera Alexander: Can. p]nt.. 49:2(3. 



