March, 1911.] GiRAULT: NeW SpECIES OF POLYNEMA. 



15 



" Membracid eggs. Apr. 30, 1908. Coll. N. Y. Exper. Sta." Also four 

 slides from the same source bearing 2 males and 2 females labelled " N. 

 Y. Agr. Exp. Sta. Parasite on pear membracid, C. taiirina Fitch " and 

 respectively "4/26/05. Geneva, N. Y. On eggs," the 2 males, and 

 "4/26/05", "5/1 1/05. Kept 2 wks.", the females. 



III. Two tag-mounted specimens, male and female, in the United 

 States National Museum collection, labelled "Par. on eggs Ceresa 

 bubalus. 4/20, '93. From Miss Murtfeldt," and in Ashmead's hand- 

 writing " Cosmocoma maculipes Ashmead." Also in the same collec- 

 tion another male specimen bearing the label " 1129 P°. On Ceresa. 

 Issued May 5, '92." 



IV. A single male mounted in balsam, captured in a greenhouse, 

 Urbana, Illinois, October 8, 1910. 



Parasitic therefore on the eggs of Ceresa bubalus Fabricius and 

 Ceresa taurina Fitch. 



//a&i^a^.— United States— New York (Albany, Geneva) ; Missouri 

 (various localities); Illinois (Urbana). 



In the literature this species is the Cosmocoma referred to by 

 Marlatt* which destroyed the eggs received by Miss Murtfeldt from 

 various localities in Missouri ; also Rileyf refers to the same species 

 as a parasite of the Ceresa, but without giving other data. 



73,^^^._Type No. 13,45^, United State National Museum, Wash- 

 ington, D. C.,'i c^, I ?, in balsam, 2 slides (the 2 specimens of series 

 I in preceding, N. Y.). 



Cotypes.— Accession No. 44,176, Illinois State Laboratory of Nat- 

 ural History, Urbana, Illinois, i slide bearing i c^, i ?, in xylol-balsam 

 (2 of the specimens of series II in preceding). 

 2. Polynema enchenopae, new species. 



Normal position. 



Female.— Length, i mm.; smaller than the preceding, moderate in size 



for the genus. 



Similar in general to the preceding but differing notably in the relative 

 length of the third to the second funicle joint, here the former distinctly 

 shorter, and in the coarser discal ciliation of the fore wings and the lesser 

 width of the latter. More closely allied with maculipes Ashmead. 



* Insect Life, U. S. Department of Agriculture, Washington, D. C, VII 



(1894-1895), 1895, pp. 12-13- . 



t Report Ent. in Report Secy. Agric. 1893, U. S. Department of Agricul- 

 ture, Washington, D. C, 1894, p. 215. 



