290 SUPPLEMENT. 



One specimen. It is possible, though not at all probable, that this may be the 

 female of what I have considered to be P. similis ; if so, the specimens thus referred 

 cannot belong to that species. 



4. Phthiria dolorosa, sp. n. 



<$ . Very like the species here identified as P. similis, Coq., differing chiefly in the larger size and the whitish 

 colour of the pile of the thorax. Subopaque black throughout, the halteres only yellowish ; the tip of 

 the femora and the tibia? red. Hair of the head black, rather abundant on the sides of the face and on 

 the cheeks. Third joint of the antennae rather more than twice the length of the first two joints together, 

 tapering distally. Palpi about one-third the length of the proboscis, which is more than twice the 

 length of the head. Mesonotum and scutellum with long, erect, light yellow hair. Abdomen with light 

 yellow hair at the base above and along the sides. Wings more or less strongly tinged with brownish. 

 Length 5-6 millim. 



Hab. Mexico, Amula in Guerrero (H. H. Smith). 



Six specimens. This species differs from P. diversa, Coq., and P. fuscipes, Big., in 

 the colour of the hair of the head and in the brownish wings ; and from P. consors, 

 O. S., in the larger size, brownish wings, and red tibiae. 



5. Phthiria albida. 



Phthiria albida, Wiedem. Aussereur. zweifl. Ins. i. p. 356 l ; Macq. Dipt. Exot. i. 1, p. 115 2 . 



$. Front broad, light ochraceous-yellow ; on either side below a whitish spot, connected by a brownish 

 transverse spot ; face yellow, very narrow on the sides. First two joints of the antennas short, of nearly 

 equal length, yellow; third joint yellow, blackish distally. Occiput for the most part yellow. Proboscis 

 black, about twice the length of the head. Palpi black, projecting but little beyond the oral margin. 

 Mesonotum opaque yellowish-brown, somewhat whitish on the sides, and yellow posteriorly. Scutellum 

 yellow, the tip oehraceous. Abdomen opaque whitish, the segments each with an opaque black band, 

 becoming narrower posteriorly, the terminal ones without them. Legs light yellow; distal joints of all 

 the tarsi black. Wings nearly hyaline ; discal cell unusually large, the veins closing it exteriorly nearly 

 in the same line ; furcation of the third vein beyond the base of the second posterior cell. Length 

 3 millim. 



Hab. Southern United States (Kans. Univ. Coll.). — Mexico, Medellin near Vera 

 Cruz (H. H. Smith).— Brazil l 2 . 



One specimen. The peculiar neuration agrees with that of a male in the Kansas 

 University Collection. Wiedemann's description l was also taken from an example of 

 that sex. 



6. Phthiria cingulata. 



? Phthiria cingulata, Loew, Linn. Entom. i. p. 383 \ 



Hab. Mexico, Chilpancingo in Guerrero (H. H. Smith), Oaxaca 1 , 



One specimen, which I refer somewhat doubtfully to Loew's species. It differs from 

 P. consors, O. S., chiefly in the colour of the legs, which are obscurely yellow, the 

 tibiae more or less infuscated, the tarsi in large part blackish. The second vein is not 

 distinctly curved at the end. P. cingulata was noticed, but not identified, by Osten 

 Sacken in the earlier part of this work (antea, p. 156). 



