NORTH AMKHICAN DIPTKHA. ]'J,'^ 



THE A^OKTH A:»I1:ici< AX €!KXi:iM OF (ALYPTRATK 

 MITSCID.E. Paper II.« 



BY C. II. TVLKR TOWN.SEND. 



This second paper is intended to furnish an avaihil)le synopsis of 

 tlie North American genera in the family Tachinidre in the strictest 

 sense. It inchides many new trenera recently described, and all the 

 older genera so far identified from America north of Panama. Those 

 number altogether l!:!! genera, not including several others which 

 have been accredited to this country, but are omitted from the syn- 

 opsis. It is well to state that I am personally familiar with 90 out 

 of the 121 genera included. The following notes may be taker, as a 

 preface to the table : 



Cryptopalpus is included on Bigot's authority. He refers one spe- 

 cies here. 



Heteropterina is not included. Bigot has referred a N. American 

 species to this genus ; it probably belongs to Plagia. 



Ceromasia.—l quote v. d. Wulp as authority for the statement 

 that Bigot's species of Ceromasia belong to Masicera. 



Macronychia is included ; I think I have species which should be 

 referred to this genus. 



Pachyophthabnus is not included. P. anrifrom Twns. (Trans. Am. 

 Ent. Soc. xviii) belongs to Sarcomacronychia. 



Senotainia is included as a ])ossibly tenable genus. 



Chcetohjga.— Bigot's species shouhl be united with Nemonm (v. d. 

 Wulp). 



Trichofyga.— Bigot's species of this genus should also be unitetl 

 with Nemorcea (v. d. Wulj)). 



Prosop(ea is included. It doubtless occurs in this country. 



Eurygaster. — Walker's species probably belong in Exon'sfa i v. il 

 Wulp). 



Rceselia is included on authority of Williston. 



Viviana. — Bigot's species should be referred to Myobiit (v. d. 

 Wulp). 



Oesb'ophcma is restricted to forms with the apical cell closed ; type, 

 Oestroph. clausa B. B. Muse. Schiz. 78, from Colo. The other form, 

 described as Oestroph. nperta, 1. c. 78, from Brazil, should be sepa- 

 rated generically, and may be known as Eiiwstroj)h(i!<l(i ajjerfa, the 

 new genus differing from Oestrophisia chiefly in the oj)en aj)ical cell. 



Stevenia is not included. Bigot's species very probably belong to 

 Phyto. 



•■ Paper I was published in Proc. Ent. Soc. Washington, ii, pp. 89-100. 



TRANS. AM. ENT. SOC. XIX. .ITNE, 1892. 



