THE CANADIAN ENTOMOLOGIST. 171 



instinctively avoiding all vital organs. Alas, poor larva ! For days the 

 victim of these minute worms, and like the misery of some ])Oor mortal, 

 finds release from suflering only in death. 



In Europe, Westwood, Introduction to the Modern Classification of 

 Insects, vol. 2, p. 160, states that Ei/pelhnis syrphi Bouche, infests the 

 larvae of Syrphus ril)esii and S. balteatus. In vol. i, p. 423, that Spalatigia 

 7iigra is parasitic on the pupae of the common house fly, Miisca dojuestica. 



In America I do not know of any having been described from Syrphus 

 flies, excepting Eriophiliis mali Hald. I consequently presume these 

 are unknown to science, and submit the following descriptions : 



Spalangia? syrphi, n. sp. ? 



'^. Length .07 inch. Head and thorax black, coarsely, uniformly, 

 but not deeply punctate, and with slight purplish and brassy reflections. 

 Head transverse, much broader than thorax, mandibles 4-dentate, denta- 

 tions not so deep as in $ ; antennae ii-jointed, reddish-brown, slightly 

 but gradually widening towards tip, covered with short pubescence ; 

 thorax — parapsidal grooves converging towards sciftellum, but abruptly 

 ending at middle of mesothorax ; collare very short, hardly visible, scu- 

 tellum convex ; abdomen ovate, brownish black, smooth and highly 

 polished, with a slight cupreous tinge at base, and attached to thorax by a 

 short peduncle ; legs honey yellow, anterior and middle femora dark, pos- 

 terior pair being brownish black ; wings hyaline, iridescent, veins greenish 

 yellow, stigma slightly thickened at base, stigmal vein with a little pointed 

 knob near the tip. 



$. Length .05 inch. Head and thorax bright greenish golden, 

 punctation as in $ ; antennae ii-jointed, filiform, reddish brown and 

 covered with rather long hairs, collare very short, hardly visible, purplish ; 

 abdomen ovate, purplish black, smooth and shining, with a short peduncle; 

 legs honey yellow, coxae brassy ; wings hyaline iridescent. 



Described from 2 ^ and 5 $ specimens bred from the pup» of 

 Syrphus philadelphicus. 



Pteromalijs 4-macui.at^, n. sp. 



%. Length .05 inch. Head wider than thorax, bluish purple, micro- 

 scopically punctate, with mouth parts brownish black ; eyes brownish, 

 antennje 9-jointed, reddish brown, scape very long, as long as all the others 

 combined excepting club ; 2nd joint as long as 3 and 4 combined and 



