216 



THE ZOOLOGIST. 



9. Apateticus maculiventris, Say (= spinosus, Dall.).* 

 Ashmead describes (Bull. U. S. Nat. Mus. 1893, p. 158) Teleno- 

 mus podisi from the eggs of this species in Missouri, and an allied 

 parasite, Trissolcus podisi, from Pennsylvania {loc. ext. p. 162). 



10. Apateticus modestus, Dall.* 

 This species is also said to be attacked by the former of the 

 above Proctotrypids by Dalla Torre (Cat. Hym. v. 519), upon the 

 authority of Eiley and Howard. 



11. Thyanta custator, Fabr.* 

 A Chalcid, Eupelmus hirtus (Proc. Amer. Ent. Soc. 1885, 

 p. xiv), and a Proctotrypid, Trissolcus thyanta, on its eggs (Bull. 

 U. S. Nat. Mus. 1893, p. 163), are described by Ashmead. 



12. Anoplocnemis curvipes, Fabr.* 

 In ' The Zoologist,' 1908, p. 193, Mr. H. W. Bell-Marley tells 

 us, in his note on " Bhynchota and their Parasites in South 

 Africa," that he found little Proctotrypid flies (figured, I. c.) of 

 the subfamily Scelionince, which Col. Bingham considered to be 

 undescribed, " resting upon this bug's body in a state of excite- 

 ment, for they were running up and down the wing-cases and 

 underneath its body." No explanation is given of this associa- 

 tion, but Mr. Distant, in a note, refers to. Ashmead' s statement 

 that all the species of Scelionince are strictly egg-parasites, though 

 since the individual infested was a male, the cause of their 

 presence is doubly obscure. 



13. Gerris lacustris, Linn. 



De Gaulle tells us (Cat. 110) that the minute Mymarid, 

 Limnodytes gerriphagiis, Marchal, devours the eggs of this aquatic 

 species. 



14. Psallus variabilis, Fall. 



In my note upon the parasitism of this species (E.M.M. 1904, 

 p. 184), I stated the opinion that the larva taken from its body 

 was that of some Dipteron ; subsequently Mr. Saunders wrote 

 that it was a well-known mite, parasitic on Homoptera, one of 



the bees, Halictus scabiosce, Rossi, and H. mucoreus, Ev., in Majorca and 

 Spain, in July (Trans. Ent. Soc. 1907, p. 404) ; and on June 5th, 1908, I 

 took Gerris gibbifera sucking Tenthredo balteatus on my moat at Monk's 

 Soham. 



