MAY FLIES AND MIDGES OF NEW YORK 



Male. Thorax oinereou. with ''- ^^iue-.B bU.* » 

 the two h,terals auter.orlv 'il't"-*"";"'' ,''*;"," ^etotUorax 



Tar: S^'do^fer-bLi with ,.,,0,- hai^. *« ven^ 

 ^Jh«r wl;^: ";ShU. «.«,. .ea., h,a..e «. .a.^n short 

 „,^ata.^.is«^^^^^^^^^^^^ ioint elongate. 



aud female 2.75 to iMo mm. Greeulaud. Translat.on. 



3. Diamesa culicoides Heeger 

 1853 Sitzb. K. K. Acad. Wiss. Wien. 10:7 ^ 



The larva, pupa and adult of this European species were de- 

 scribed by Heeger (1853). Heeger's figures are reproduced on 



pl.36, fig. 15 to 25. 



,,,0., toth...tho..80t «Oe.g 



ILTrS^VerthVyZy r.a.hed hMU-ate. f™. 

 i,ne. The egg. are described as bemg TeUow.sh.^ M^ n<«r y 

 pTlindrical slightlv smaller at one end, scarcely .25 mm. m len^t 

 cTimaucai. sii^ui .» Ti,e 1-1 rvae emerge in about 8 or 



?rdar%hrr^hltrf: the^'i^g^l^V ..e^ the aorsal su. 



ace becomes -brownish. When full S^^" »'";^'^, \'„^kT tie 

 Ipufth The eves are subtriangular. small, flat and "'a^^' 



of which there is '\^^- ^ Hke dwelling from which the head 

 The larva spins a thin, tube-like aweumg 



