468 PBOCBEDINGS OF THE NATIONAL MUSEUM. vol.57. 



PHTTODIETUS VULGARIS Cresson. 



Phytodietus vulgaris Cresson, Trana. Amer. Ent. Soc, vol. 3, 1870, p. 166. 



Type.— Cat. No. 1506, Acad. Nat. Sci. Philadelphia. 



Inner margms of eyes parallel; anterior basitarsus fully two-thirds 

 as long as tibia; longer calcarium of hind tibia distinctly more than 

 half as long as hind basitarsus; third tergite distinctly shorter than 

 the second; ovipositor somewhat shorter than the abdomen but 

 varying somewhat in the specimens examined. 



The male assigned to this species has not been definitely associated 

 with the female, but it agrees so well with the female and is so closely 

 allied to annulatus that it seems fair to assume that the association is 

 correct. 



Distribution. — Cresson records this species from Canada, Massachu- 

 setts, Connecticut, Pennsylvania, Delaware, and Illmois, but not all of 

 his specimens belong to the species as here restricted. The specimen 

 from Delaware was labeled by Cresson as lectotype. Specimens in 

 the National Collection come from the following localities: Agricul- 

 tural College, Michigan; Westville and Pemberton (Scummell), New 

 Jersey; Washington, District of Columbia; and Chain Bridge, Virginia 

 (Wm. Middleton). 



Hosts. — Erroneously recorded by Riley and Howard from a geo- 

 metrid on. Physalis viscosa (see Phytodietus amiulatus). Recorded as 

 a parasite of Eucosma oceUana,^ Cacoccia (ArcJiips) argyrospila Walker ^ 

 and Peronea minuta.^ One male in the National Collection was reared 

 byScammell as a parasite of Peronea minuta. 



SPECIES ERRONEOUSLY REFERRED TO THE GENUS. 



(PHYTODIETUS) PLECTISCUS GRACILIS (ProTancher). 

 (PHYTODIETUS) LISSONOTA? TRUNCATA (Davis). 



Phytodietus? fruwcaf us Davis, Trans. Amer. Ent. Soc, vol. 24, 1897, p. 371. 



I have not been able to locate the tj^^e of this species but the de- 

 scription makes it reasonably certain that the species does not belong 

 to Phytodietus. 



(PHYTODIETUS) LISSONOTA OBSCURELLUS (Cresson). 



Phytodietus obscurellus Cres30n, Proc. Acad. Nat. Sci. Phila., 1878, p. 379. 



HOST CATALOGUE. 



The following is a list of the various insect hosts referred to in 

 this paper: 



COLEOPTERA. 

 ALAUS OCULATUS Lianaeus. 



Xorides catomus (Davis). 



1 Duporte, 7th Ann. Rept. Quebec Soc. Prot. Plants, 1915, pp. 76-77 

 » Herrick and Leiby, Cornell Univer. Agr. Exp. Sta. Bull. ^07, IQir.. 

 ' Franklin and Morse, Ma.ss. Agr. Exp. Sta. Bull. 150, 1914. 



