321 



rather distinct groui) which does not extend as far towards middle of 

 femora, and 4 spines in place of one spine on hind femora. The pupa 

 from which this specimen was reared has the thoracic respiratory or- 

 gan as in Figure 16, Plate XXI. A specimen in the collection of the 

 U. S. Bureau of Biol(\gical Survey collected at Four Mile Run, \'a., 

 has the legs considerably darker in color and the spines on the femora 

 as in the New York specimen. These may represent distinct species, 

 but a series of specimens is necessary to enable one to give a definite 

 opinion. In all probability it is this last form w4iich appears as Pal- 

 po)nyia lincatits Aleigen in the New^ Jersey list, but that species has the 

 cubitus forking before the cross vein, which is not the case in the spec- 

 imens before me. 



2. Palpomyia scabra Coquillett 



Ceratopogon scaber Coquillett, Jour. N. Y. Ent. Soc, Vol. 13, 1905, p. 62. 

 Palpomyia scabra (Coquillett) Malloch, Bull. III. State Lab. Xat. Hist., Vol. 10, 

 Art. 4 (1914) p. 221. 



Described from Frontera, Tabasco, Mexico, and, as far as I am 

 aware, not since recognized. Date of occurrence, February 22 (C. H. 

 T. Townsend). 



3. Palpomyia tibialis Meigen 



Ceratopogon tibialis Meigen, Syst. Beschr. Eur. Zweifl. Ins., Vol. 1, 1818, p. 82, 



sp. 36. 

 Palpomyia tibialis (Meigen) Malloch, Bull. 111. State Lab. Nat. Hist., Vol. 10, 



Art. 4 (1900), p. 222. 



In addition to the two localities already recorded for this species 

 in Illinois,* Algonquin and Anna, I have seen an example taken at 

 Momence, July 17, 19 14, by C. A. Hart. 



I have seen females of this species, submitted by Prof. O. A. Jo- 

 hannsen, from the following localities in N^ew York State : Ithaca, 

 McLean, 2-3 July, 1904; Mud Creek, Tompkins Co., 17-20 June, 

 1904; Freeville, July 4, 1904; Ellis, June 13, 1904. 



4. Palpomyia subasper Coquillett 



Ceratopogon subasper Coquillett, Proc. U. S. Nat. Mus., Vol. 23, 1901, p. 606^ 

 Palpomyia subasper (Coquillett) Malloch, Bull. 111. State Lab. Nat. Hist., Vol. 

 10, p. 222. 



In addition to the follow-ing Illinois localities already recorded in 

 previously cited paper — Algonquin, Urbana, White Heath, Savanna, 



*Bull. 111. State Lab. Nat. Hist., Vol. 10, Art. 4 (1914), p. 222. 



