DIPTERA. 283 



26 (e). Anthrax ceria, sp. n. 



cJ . All the segments of the abdomen, save the first, with an anterior band of dense white tomentum, of equal 

 width, and a little narrower than the posterior band of equally dense black tomentum ; sides of the first 

 three segments with white hair, of the remaining segments with short black hair. Wings brown and 

 greyish-hyaline ; the brown coloration fills out the costal and subcostal cells, the submarginal cell to tho 

 end of the first vein (though dilutcly so behind from the origin of the second), the first basal cell to a little 

 beyond the anterior cross-vein, and the second basal cell, except on the outer part ; the cross-veins on 

 either side of the discal cell are narrowly clouded with darker brown, and there is a small brown spot at the 

 base of the fourth posterior cell and an almost imperceptible one on the furcation of the third ; the second 

 vein is bisinuate, and the first posterior cell is narrowed at the margin. Front tibiae smooth; front tarsi 

 small, the joints indistinctly separated, without erect pile, and with minute ungues. Length 9 millim. 



Hob. Mexico, La Venta in Guerrero (II. H. Smith). 

 One specimen. 



26 (f). Anthrax maria, sp. n. 



<S $ . Black. Front with erect black pile ; front and face with appressed fulvous tomentum, the face prominent. 

 First two joints of the antennae red ; third joint with the short bulbous portion as broad as long, the stylo 

 slender and long. Proboscis projecting about 1 millim. beyond the oral margin. Mesonotum with light 

 yellow hair in front and on the sides ; pleurae with bushy, nearly white hair ; there is some bushy white 

 hair, also, just back of the wings. Abdomen on the sides with light yellowish hair; dorsum clothed 

 laterally with bright fulvous tomentum, intermixed with black in the middle, the black largely prepon- 

 derating; tip with white tomentum, and there is some tomentum of the same colour on the sides 

 of the third segment. Legs yellowish, with fulvous tomentum, the tarsi blackish ; front tibioa with 

 spinules ; front tarsal joints distinctly differentiated and without erect pubescence ; no pulvilli. Wings 

 brown "and hyaline ; the brown coloration fills out the marginal cell as far as the tip of the first vein, the 

 first and second basal cells, the anal cell to the base of the fourth posterior cell, and a little more than 

 half of the anal angle— it also encroaches upon the base of the first, third, and fourth posterior cells, and 

 forms a narrow cross-band over the furcation of the third vein to and over, narrowly, the vein at the base 

 of the second posterior cell, the first posterior cell thus having a hyaline spot in it, sometimes much 

 reduced in size, with the fourth vein behind it narrowly clouded, and separated by a cloud on the third 

 vein from a spot in the first submarginal cell. Length 6-8 millim. 



Hab. Mexico, Hacienda de la Imagen and Tepetlapa in Guerrero (II. R. Smith). 



Ten specimens. One of these is much larger than the others ; but I can distinguish 

 no other differences, save that it has the legs almost wholly red. 



29 (a). Anthrax lateralis. 



Anthrax lateralis (Say), 0. Sack, anted,, p. 138 (under sp. no. 29). 



To the locality given, add :— Mexico, Omilteme in Guerrero 8000 feet (II. II. Smith). 



ONCODOCEEA (p. 141). 

 Oncodocera, antea, p. 141 (part.). 



3. Oncodocera analis, sp. n. 



cJ . Eyes contiguous above ; the large frontal triangle and the face black-pilose, without trace of white. Third 

 joint of the antennas elongate, moderately dilated at the base, the distal half slender. Thorax deep black, 

 with black pile ; mesonotum with long yellowish-white pile. Abdomen with long light yellow or white 



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