248 SUPPLEMENT. 



a U-shaped spot on each Bide of the mesonotum in front, the inner arm pointed, the outer one hroader ; 

 a small spot on each side of the mesonotum behind the middle and a small triangular spot on and in front 

 of each post-alar callus, the humeri, the spines of the scutellum, the very slender lateral margin of the 

 abdomen, and a small comma-like spot on the second, third, and fourth segments, connected with the 

 yellow border at each posterior angle, and the slender hind margins of the ventral segments. Body 

 bare. Head as broad as the thorax ; face protuberant ; front with a median carina. Eyes bare. 

 Wings tinged with brownish, more deeply so in front ; third vein with an anterior branch. Length 

 10 millim. 



Hah. Mexico, Dos Arroyos in Guerrero (H. II Smith). 



One specimen. This species is a very aberrant one and would perhaps be better 

 associated with some others in a separate genus. 



STRATIOMYIA (p. 36). 

 Stratiomyia mutabilis (p. 87). 



Stratiornyia mutabilis (Fabr.), Willist. Trans. Am. Ent. Soc. xv. p. 256 (?)*; Johnson, Trans. 

 Am. Ent. Soc. xxii. p. 243, t. 4. f. 3 2 . 



To the localities given, add : — Mexico, Chilpancingo in Guerrero, Atoyac in Vera 

 Cruz (H. H. Smith), Temax in Northern Yucatan (Gaumer), Orizaba 2 , Tehuantepec .*. 

 - — Beazil, Corumba \ Chapada 1 . 



Seven males and twelve females from Mexico are contained in the collection 

 before me. 



Stratiomyia subalba (p. 37). 



Stratiomyia subalba (Walk., Bellardi), Johnson, Trans. Am. Ent. Soc. xxii. p. 246 '. 

 Stratiomyia mutabilis, Willist. Trans. Am. Ent. Soc. xv. p. 256 ($) 2 (nee Fabr.). 



To the localities given, add: — Mexico, Atoyac in Vera Cruz (H. H. Smith). — 

 Brazil, Chapada 2 . 



Two specimens from Atoyac, agreeing closely with those from Brazil mentioned in 

 the above-cited paper 2 , which I then thought to be males of S. mutabilis. 



3. Stratiomyia bimaculata. 



Stratiomys bimaculata, Bellardi, Saggio etc., App. p. 8, t. 3. f. 7\ 

 Stratiomyia bimaculata, Johnson, Trans. Am. Ent. Soc. xxii. p. 245 2 . 



Hah. Mexico, Cosamaloapam (Salle 1 ), N. Yucatan (Gaumer). 



Three specimens from Yucatan, agreeing well with the description. S. himaculata 

 was not identified by Osten Sacken in the earlier part of this work (antea, p. 42). 



