88 THE CANADIAN ENTOMOLOGIST. 



fusion of R4..-, with M,,.,, and the decided tendency of CUa to fuse with 

 ist A. 



Tiie West Indian species {manai z.\\^ pallida Will., Dijit. St. \incent, 

 p. 291-293, figs. 6, 7, o{ pallida) and possibly .'/. albitarsia Dol. (E. Ind.), 

 also, wliich I have not seen, are the most gf-neialized members of the 

 genus, in that Cu.j and ist .\ are distinct to tlie wing-margin. The inter- 

 mediate group, conidanmg Irentepohlii \V\l:<i. (^ee Wiedemann, Aussereur. 

 Zweifl. Insekt., I, 551; 18, tab. Ylb, fig. 121a better figure in De Meijere, 

 Tijd. voor Ent., 1911, pi. IN', fig. 42); fragilliina Westw. (see Westwood. 

 Trans. Ent. Sec. Lond., iScSi, pi. 17, fig. i ; also Needham, 23rd Rept., 

 N. Y. St. Ent., pi. 2r, fig. 6), and exornata Bsrg. (Bergr., Entomol. 

 Tidskrift, 188S, opp. p. 130, fig. 3), has Cu, fused with ist A for a short 

 distance back from the tip (Cu._.+ ist A less than one-half Cu.j). A third 

 stage in the specialization of this part occurs in M. peitnifes O. S. (E. Ind). 

 (See He Meijere, I.e., pi. IV, fig. 39.) The ma.\imum of specialization, 

 as far as I know, occurs in the present specie.', where the fusion of Cu., 

 with ist A is notable, and suggests the condition obtained in the families 

 Empididcs and Dolkhopodidte. 



Of the three described African species, M. zaiiibeiia. comes closest, 

 api^arently, to exornata. .^f. /ragillima (and i)robably M. curtipennis 

 alio, according to Speiser, who compares it w\\.\\ ftagillima), lias vein Mj 

 separating from Cui, and continuing distinct to the wing-margin ; both of 

 tiiese species possess a curious spur-like structure at the base of the fore 

 femora, which does not occur in M. zambesia. 



1 have a i of M. exornata Bergr., taken at Queliniani, Zambesi R., 

 Dec. 20, '08, in which the lore legs are lacking, and I am unable to state 

 whether or not this structure occurs there. M. exornata iias been 

 recorded from Delagoa B.iy, Portuguese Eist Africa ; Caffraria. E. Cape 

 Coiony, and Amani, German E. Africa. It is apparently widely dis- 

 tributed throughout I'^astern Africa. 



OX THE OCCURRENCE OF A EUROPEAN SPECIES OF 

 MVM.\RID.-E IN NORTH AMERICA. 



1!V A. AKSF.NI; CIRAUI-T, BRISBANE, AUSTRALIA. 



Up to the present I have been successful in finding but a single 

 species of the family MymaridiB, common to Europe and North America. 

 This species is Anaphes pratensis Foerster, which I have captured in 

 Illinois, and of whose characteristics I write of in a paper on Chalcidoidea, 

 to be published soon in Germany ; the species is recorded from America 



M.-.rch. 1912 



