Biological Notes on Reared Parasitic Ilymcnoptera. 



35 



classified list of Hymenoptera, the object being to place on 

 record, and within the reach of other workers, a basis upon 

 and about which they may build, the species, as will be 

 noticed, including not alone the new, but also many old ones, 

 the locality being new. 



Encyrtus bucculatrices Howard. (Fig. i, Plate II). 

 Reared from cocoons of Bucculatrix pomefoliella Clem, at 

 Wooster, Ohio. This species was described in Lintner's 

 first report as State Entomologist of New York. 



Amblyaspis minutus Ashmead. This was reared at 

 Lafayette, Indiana, from Oak twigs affected by the larvae of 

 some species of Agrilus, but as it is a Cecidomyiid parasite, 

 the true host was not observed. Reared also at Wooster, 

 Ohio, from wheat straws. Habitat, Washington, D. C, and 

 St. Louis, Mo. Description in Bull. 45, U. S. Nat. Mus., 

 p. .269. 



Tetrastichus encyrti Ashmead. The types of this 

 species were reared with the preceding, it being probably a 

 hyperparasite, and the host is unknown to me. For descrip- 

 tion, see Mr. Ashmead's paper. 



Herpestomus plutell.^ Ashmead. Reared at Columbus, 

 Ohio, from the larvae of the Diamond-back Cabbage Moth, 

 Plutella cruciferarum Zeller. The types of this species w r ere 

 reared by myself at Lafayette, Indiana. Described in Proc. 

 U. S Nat. Mus., Vol. XII, p. 196, 1889. 



Mesoleptus fungicola Ashmead. Reared from a fungus, 

 Polyporus applanatus Fr., in the vicinity of Wooster, Ohio. 

 Larva collected in October, the adult emerging the following 

 spring. Type specimens, the host unknown. For descrip- 

 tion, see Ashmead's paper. 



Dacnusa crassitela Provancher. Reared at Wooster, 

 Ohio, from stalks of Ambrosia trifida L. In early Spring, in 

 the pith of this plant, were found in considerable numbers 

 pupae of two species of Diptera, the first belonging to an 

 undetermined species of Agromyza, and the other to Diastata 

 n. sp., the latter being the host for this species. Habitat, 

 Ottawa, Canada. Described in Add. Faun. Hym., p. 148. 



