942 ICHNEUMONIDAE 



I. notandus (Cress.). Ithaca, Ap-May (Baird-CU) ; West Farms, Angus (Cush- 

 CU) ; LI (Cush-US). A common parasite of the goldenrod gall-maker 

 Gnorimoschema gallaesolidaginis Rly. and other similar gall-making lepi- 

 dopterous larvae. The U.S. Nat. Mus. has specimens from the above-named 

 host and from G. gallaeastericlla Kell., G. baccharisella Busck, and Walshia 

 amorphella Clem. (Lavernidae). 



SCAMBUS Hartig 



(Pimpla auctt., in part) 



(The species of this genus are parasitic on lepidopterous, and, rarely, coleopterous, 

 larvae.) 



(Subgenus ISEROPUS Foerster) 



S. coelebs (Walsh). New Russia, Aug, Bdy (Baird-CU) ; Potsdam, Je (Baird- 

 CU) ; Speculator, Aug (Cush-NYS) ; Batavia. Mar (Cush-CU) ; Manlius, 

 Aug-Sep, SmHH (Cress-CU) ; Fredonia, Jl (Baird-CU) ; Spring Lake, Jl 

 (Baird-CU) ; Ithaca, Mar-Jl (Baird, Maidl-CU) ; Enfield, Jl (Maidl-CU) ; 

 Ringwood, Aug (Maidl-CU) ; Motts Corners, Aug (Baird-CU) ; Labrador 

 L., May (Maidl-CU) ; Freeville, Jl (Baird-CU) ; Norton's Landing, Cayuga 

 L., Jl, SmHH (Cress-CU) ; McLean, Aug 3-31, SRohinson (Bdy-CU) ; 

 Slingerlands, Albany, Karner, Gloversville, Je-Aug (NYS) ; NYC, Sep, Cy 

 (Baird-CU); LI: Flatbush. Sep, Zab (Cush-US); Melville, May (Cush- 

 ■ Schott). An abundant parasite of Orgyia, Malacosoma, Thyridopteryx, etc., 

 its larvae feeding gregariously on prepupae of the host. 



(Subgenus EPIURUS Foerster) 



S. alborictus (Cress.) (investigatrix Walsh). Adirondacks, Aug (Baird-CU) ; 

 Cranberry L., Jl, Hth (Cush-NYS Col. For.) ; Ithaca, Je-Nov (Cush, Baird- 

 CU) ; Spring Lake, Jl (Baird-CU); Albany, Je (Cush-NYS). Parasitic on 

 leaf-rolling lepidopterous larvae such as the apple leaf-roller, Archips 

 argyrospila Wlk. Specimens in the U.S. Nat. Mus. are from Eulia pinitubana, 

 Epistmus argutanus CI. (both Tortricidae), and Zotheca tranquilla Grt. 

 (Noctuidae). 



S. indagator (Cress.). Ithaca, Ap-Aug (Cush-CU, US) ; Spring Lake, Jl (Baird- 

 CU) ; Van Cort. Pk., Jl (Baird-CU). Parasitic on larvae of many internally- 

 feeding microlepidoptera. The U.S. Nat. Mus. has specimens reared from the 

 grape berry moth (Polychrosis viteana Clem.), Simaethis pariana (Glyphiptery- 

 gidae), a leaf-roller on box-elder, Acrobasis indiginella Zell., Acrobasis 

 caryella (Pyralidae), Dichomeris ligulella Hbn. (Gelechiidae), the codling 

 moth (Carpocapsa pomonella L.), Coleophora sp. on wild cherry, Eulia 

 pinitubana (Tortricidae), and Phycis juglandis S. & A. (Pyralidae). 



S. nigrifrons Vier. Albany, Jl, Aug (Cush-NYS). On the white-marked tussock 

 caterpillar, Hemerocampa leucostigma S. & A. 



S. pterophori (Ashm.) {pterelas auctt.). L. Pleasant, Je (NYS) ; Gloversville, Aug 

 (NYS); Oswego, May (Cush-US, NYS); Buffalo, EPV (GCDavis) ; 

 Rochester Jet., Jl, Leon (Baird-CU) ; Honeoye Falls, N. Fair Haven, Sep 

 (Baird-CU) ; Clifton Sps., Aug, Cy (Baird-CU) ; Perry, Aug, Emerson 

 (Cush-CU) ; Spring Lake, Jl (Baird-CU) ; Norton's Landing, Cayuga L., 

 May-Je, SmHH (Cress-CU) ; Ithaca, Mar-Aug (Baird, Cush-CU, NYS) ; 

 Mud Cr., Jl, MacG&Bdy (Baird-CU) ; McLean Bogs, May (Cush-CU) ; 



