14 PROCEEDINGS OF THE NATIONAL, MUSEUM vol.79 



Kedescribed from 40 specimens of both sexes. In the United 

 States National Museum: 2 cotypes (male and female) reared from 

 Tortrlx fumiferanae, July 11-15, 1911, Duncan, British Columbia. 

 From the following localities 18 males and 16 females : Oregon (A. 

 L. Lovett) ; British Columbia (H. G. Dyar) ; Idaho (J. M. Aid- 

 rich) ; South Dakota (J. M. Aldrich) ; North Carolina (C. V. 

 Riley, Franklin Sherman) ; Virginia (W. L. McAtee) ; Maryland 

 (W. R. Walton) ; and Maine (C. W. Johnson). In Professor Hine's 

 collection: 1 female from Loudonville, Ohio, June 6, 1915 (J. S. 

 Hine). In my collection: 2 males from Crawford County, Ark., 

 April 4, 1927 (D. G. Hall) ; and 1 female from Sugar Grove, Ohio, 

 June 10, 1914 (H. J. Reinhard). 



The species is closely related to amoena of Europe and may even 

 be the same, in which case the latter name will replace the one here 

 used. I have not seen any specimens of amoena. Until the type is 

 examined, it aj)pears expedient to consider the two forms as distinct. 



(4) WINTHEMIA QUADRIPUSTULATA Fabricins 



Musca quadripustulata Fabricius, Ent. Syst., vol. 4, p. 324, 1794. 



Tachina quadripustulata Fabricius, Systl., p. 309, 1805. 



TacJiina vurieyata Meigen, Syst. Beschr., vol. 4, p. 205, 1824. 



Chaetolyga rufonotata Bigot, Annales, p. 257, 1888. — Brauer and Besgenstamm, 



Sitzungsbr. Kais. Mus., vol. 106, p. 349, 1897. 

 Winthemw quadripustulata Fabricius, Coquillett, Revis. Tachin., p. 125, 1897, 



a complex of several species. The numerous references in recent literature 



are subject to verification, 

 Winthemia illinoensis Eobertson, Can. Ent., vol. 33, p. 286, 1891. 

 Winthcmia rufonotata Bigot, Aldrich, Catalogue, p. 474, 1905. 



Coquillett first identified the species from North America by com- 

 parison with European specimens received from Zeller. The latter 

 specimens are still preserved in the National Museum and are the 

 true qumlripibstulata, according to later determinations of European 

 material by Nielson and Villeneuve. It is impossible to decide 

 whether Coquillett had the correct American form associated in 

 making his original identification, but later in his Revision of 1897 

 he did include no less than four apparently distinct species. Since 

 that time qiuulripustulata has been generally considered in this 

 complex sense, and our literature is replete with references to con- 

 fused species under this name. 



I have examined one type specimen (male) of illinoensis, but have 

 been unable to find any structural characters to separate it. The type 

 has sparse, rather long, erect abdominal hairs. This combination of 

 characters, according to the original description, applies to the male 

 sex only. Since there are intergrading forms in the material exam- 

 ined, the species can not be considered as distinct. 



