218 CONNECTICUT GEOL. AND NAT. HIST. SURVEY fBuli 



with vellcAV ; stio-iua dark brown: in cases, wino-tip infuuied. S . L. 

 1,5-20 mm.: w. 18- V> mm. 9. L. 20- 22 mm.: w. IG mm. 



(May-early July) Out.. Que.. Me., N. H., \'t., Mass., X. Y., Ohio, westw. to Wise 



Tamfpfcra siiccrfJens (Walker), described in 1<S,5G from Canada, 

 is a doubtful form that is usually placed with fronfaJ'ts. It is thp 

 prior name- for >i)ecies in owv local fauna. 



Ctenophora Meigen 



1800. Fliihcll/fcni Meio-en; Xouv. Class. Mouch., p. 1'5 (iioni. nud.i. 



l<so;i Ctoiofhoi-a ]Mei<):en: Illi<>-er".s Maa'.. 2:203. 



lOlO. rikorocfcutd Coquillett: Proc. U. S. Xat. Mus., 37 : :).S1). 



In this ii-enus. a condition exists that is quite com])arable to thai 

 found in Toinj ptera. There are sup[)osed to be nearly a score of 

 species, includmo; two in the local fauna, but the exact status of these 

 fiies I'emains in question. The extreme polymorphism of color found 

 here has been discussed by Johannsen (Maine Agr. Expt. Sta., Bull. 

 177:02-35; 1910). The adults are not commonly met with in nature, 

 beino; found flyino' about in o])en woodlands. The lai'vae live in 

 decay i no- wood. 



Key fo Species 



1. Wings variously patterned, either entirely darkened, or yellowish, with tlie 

 entire apex beyond cord strongly infumed; body either black, or yellow 



with dark markings apicata 



Wings nearly hyaline, tinged with yellow in costal region; a large brown 

 cliiud between cord and wing-tip, not reaching tlie apex: thorax yellow, 

 with a cuneate median brown stripe nubecula 



Ctenophora apicata ((). S.) (Fi^^ 2."). B). 



18G1. Cii'iiopJioid np'icdfd Osten Sacken : Proc. Ent. Soc. Phila- 

 delphia. 3:4(). 



Figs.— Johannsen, Maine Agr. Expt. Sta. Bull. 177, fig. 14 (wing) ; 1910 

 Alexander, Cfls. N. Y., 1, pi. 43. figs. 189-190 (wing) ; 1919. 



Coloration very varied, ran^uin*:- from l)lack to reddish yellow,, 

 with dark markings. The dark phase iji both sexes has the mid- 

 femora black, tibiae and tarsi yellow, the body chiefly polished black: 

 winas blackish brown, with restricted clearer spots alon^^ cord. The 

 yellow phase, likewise involving both sexes, is chiefly polished red- 

 dish yellow, with restricted black areas; wings vellow, darkened 

 apically. 5. L. 13-15 mm.; w. 13-15 mm. ?. L. 18-20 mm.; w. 

 15 - 17 mm. 



(June-Aug.) Out., Que., N, B., Me., N. H., \\., Mass., R. L, N. Y. 



Connecticut.— Colebrook, 1905 (American Museum Nat. Hist part of W M 

 Wheeler collection); Killingly, July 3, 1919; Stonington, July 26 1906 (T A."h) 



■^r ,i'^o?i^V\\''n^•n^.'^^^'■"^^^"°"'■ ^"^ H, 1922 (S.W.'b.) Waterford; 

 July ks, 1914 (I.W.l).); Woodbury, July 16, 1913 (W. E, B.). 



