284 SUPPLEMENT. 



pile, and a band of black pile posteriorly ; sides with long and abundant black pile ; last two segments 

 covered with silvery- white pile. Legs black. Wings nearly as in 0. leucoprocta, the first basal cell filled 

 out with brown. 

 $ . Eyes narrowly separated at the vertex ; front and face for the most part, or altogether, silvery- white- 

 pilose. Mesonotum, except in front, with light yellow pile ; upper part of the pleurae with more bushy 

 pile of the same colour. Abdomen with black pile; all the segments with a fringe of white pile 

 posteriorly. Length 7-8 millim. 



Hah. Mexico, Xucumanatlan, Amula, and Chilpancingo in Guerrero (//. H. Smith). 



Ten specimens. This species is closely allied to 0. leucoprocta, Wiedem., but is 

 easily distinguishable in the male by the absence of white pile on the front and face, 

 and in the female by the pilose markings of the abdomen. 



ANISOTAMIA. 



Anisotamia, Macquart, Dipt. Exot., Suppl. iv. p. 115 (1850). 

 Oncodocera, Osten Sack en, antea, p. 141 (part.). 



The great difference in size between the known species of Oncodocera and Anisotamia, 

 together with the closed or widely open first posterior cell, are, I believe, sufficient to 

 justify their separation. In Anisotamia the closure of the anal cell is variable. 



1. Anisotamia valida. 



Anthrax valida (Wiedem.), Roeder, Wien. ent. Zeit. v. p. 264 4 . 

 Oncodocera valida, O. Sacken, antea, p. 142 5 . 



To the localities given, add :— Mexico, Tuxtla, near Amula, Tierra Colorada, Chil- 

 pancingo, and Dos Arroyos in Guerrero (H. II. Smith), Northern Yucatan (Gaumer). 



Seven specimens, including both sexes. The one from Yucatan has the wings 

 almost black and otherwise differs ; it is a female. 



2. Anisotamia fasciata, sp. n. (Tab. v. fig. 6, $ .) 



2 . In structure and appearance very like A. valida. Black ; front and face thickly covered with recumbent 

 white hair (antenna) wanting) ; mesonotum iu large part (or wholly ?) covered with short, thick, yellow 

 pile ; pleurae with white pile ; abdomen concealed beneath thick black hair and tomentum, the" ante- 

 penultimate segment wholly covered with dense, white, recumbent hair : legs and wings as in A. valida ; 

 anal cell open. Length 16 millim. 



Hob. Mexico, San Bias in Jalisco (Schumann). 

 One specimen. 



EPACMUS (p. 142). 



Epacmus modestus (p. 142). 



To the localities given, add :— Mexico, Venta de Zopilote in Guerrero (II. //. Smith). 

 A single female specimen, which upon comparison with what 1 believe to be the 



