54 DIPTEEA. 



A single male specimen from Duefias, agreeing well with others from South 

 America and the United States. 



26. Volucella fuscipennis. . 



Volucella fuscipennis, Macq. Dipt. Exot. ii. 2, p. 24, t. 4. f. 2 1 ; Willist. Trans. Am. Ent. Soc. xv. 

 p. 276 2 . 



Hab. Mexico, Teapa in Tabasco (H, H. Smith), Temax in Northern Yucatan 

 (Gaumer).— South America, Brazil 1 2 . 



A dozen specimens from Southern Mexico show only minor differences from an 

 example identifled as this from Brazil. The colour is lighter, more reddish ; the violet 

 reflections of the mesonotum are feehler; and the legs are chiefly reddish-brown, with 

 the tarsi more or less yellow, especially the hind metatarsi. The face seems somewhat 

 less acuminate, and the lateral roughened opaque surface on the scutellum somewhat 

 larger. In the Brazilian specimen the marginal cell is narrowly open; in all the 

 Mexican ones it is closed at the tip. The female has a rounded elevation in the 

 middle of the front. 



A single female from Presidio, Mexico (Forrer), has the structure of the others, but 

 is yellow, with the pectus, lateral scutellar spots, front, narrow abdominal bands, and 

 the base of the femora black ; the mesonotum with a trace of violet stripes. 



27. Volucella lugens, 



? Volucella lugens, Wiedem. Aussereur. zweifl. Ins. ii. p. 206 \ 



Hab. Guatemala, Lanquin in Vera Paz (Champion).— South America, Brazil K 



A single male example from Lanquin agrees very well with the description. The 

 legs and markings of the abdomen are brown, rather than black. A comparison with 

 Brazilian specimens is needed to determine with certainty the identity. 



28. Volucella purpurifera. 



Volucella purpurifera, Bigot, Ann. Soc. Ent. Fr. 1875, p. 477 \ 



Volucella tricincta, Bigot, loc. cit. p. 477 \ 



Volucella varians, Bigot, loc. cit. p. 481 3 , & 1883, p. 63. 



Hab. Mexico 3 , Oaxaca 1 2 . 



Bigot has expressed the opinion that all three of the above names pertain to one 

 species, a view that does not seem improbable from the descriptious. Two male 

 specimens from Amula (H. H. Smith) may belong to the same. As the descriptions 

 are insufficient to decide the question with certainty, 1 give a more complete one from 

 these specimens : — 



Face and froutal triangle greenish-yellow, more yellowish below, the former with a brownish stripe in the 



