238 PROC. ENT. soc. WASH., VOL. 22, xo. 9, DEC., 1920 



FAMILY ENCYRTIDAE. 

 Eupelmus allynii French. 

 Pteromalus (sp.) Harris, Ins. Inj. Veg., 1863, p. 556 (Flint edition). 



The description by Harris cited above fits exactly the male of 

 allynii and agrees with no other known parasite of the joint worm 

 flies (Harmolita). Since Harris did not name the species, the 

 validity of French's name is not affected and the reference is 

 chiefly interesting as constituting a much earlier record of the 

 species in literature. 



FAMILY PTEROMALIDAE. 



Merisus febriculosus Girault. 

 ( = Stictonotus isosomatis A utlwrs not Riley) 

 Merisus isosomatis Webster, Ins. Life, vol. 5, 1893, p. 90. 

 Stictonotus isosomatis Webster, U. S. Dept. Agr. Bur. Ent. Bull. 42 (new ser.) 



1903, p. 22. 



Merisus isosomatis Webster, 1. c., p. 33. 



Stictonotus isosomatis Webster, Proc. Ent. Soc. Wash., vol. 7, 1905, p. 115. 

 Stictonotus isosomatis Webster, U. S. Dept. Agr. Bur. Ent. Circ. 66, 1908, p. 4. 

 Semiotellus isosomatis Webster and Reeves, U. S. Dept. Agr. Bur. Ent. Circ., 



106, 1909, pp. 8, 9, fig. 11. 



Stictonotus isosomatis Kelly, Journ. Econ. Ent., vol. 3, 1910, p. 202. 

 Merisus isosomatis Crawford, in Smith's Ins. of New Jersey, 1910, p. 642. 

 Merisus isosomatis Viereck, Hym. Conn., Bull. 22, Conn. Sta. Geol. Nat. 



Hist. Surv., vol. 3, 1917, p. 478 (rearing record). 

 Merisus febriculosus Girault, Descriptiones Stellarum Novarum, 1917, p. 17. 



As pointed out in the discussion of Eridontomerus isosomatis 

 (ante p. 235) the Merisus isosomatis of authors is not Stictonotus 

 isosomatis Riley. Luckily it is not necessary to propose a new 

 name for isosomatis Riley however, as one is already available in 

 Merisus febriculosus Girault. The type material of febriculosus 

 consists of a single female from Wooster, Ohio. This specimen 

 was without much doubt collected by Webster although not so 

 labelled. It is identical with numerous other specimens in the 

 collection reared by Webster from joint worm material in Indiana, 

 Michigan, and Ohio, and which form the bases for the several 

 notes published by him. 



Whether or not Girault was aware of the fact that Merisus 

 febriculosus was identical with the isosomatis of authors (not Riley) 

 does not appear. He makes no statement to that effect either 

 with the original description or elsewhere. 



This species is a common parasite of various species of Har- 

 molita as shown by the published records cited above as well as 

 numerous unpublished records in the files of the Bureau of 

 Entomology. It also occurs as a parasite of the Hessian fly. 



