294 SUPPLEMENT. 



9. Systropus pulcher, sp. n. 



2 • Face pale yellow ; frontal triangle reddish or brownish-yellow. Proboscis black ; palpi reddish-yellow. 

 Antennae black, the third joint about one and a half times the length of the second. Thorax dark red, 

 with an oval black spot immediately above the root of the wings and a small black spot or strigula on 

 each side of the scutelhim ; mesonotum with two narrow brown stripes. Abdomen with the first 

 segment of the same colour as the mesonotum ; the remainder black above, the narrow portion light 

 yellow on the underside. Pour anterior legs yellow, their coxa? brown ; hind femora red or brownish- 

 red, with the distal portion lighter-coloured ; hind tibiae black, the base on the inner side more or less 

 red ; hind metatarsi light yellow, except the immediate tip, the remaining joints black. Wings tinged 

 with brownish. Length 17-18 millim. 



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



10. Systropus similis, sp. n. 



S 2 • Face pale yellow ; frontal triangle silvery ; palpi yellow ; antennas and proboscis black, the third joint 

 of the former a little longer than the second. Thorax black ; mesonotum with a hoary stripe in the 

 middle, the lateral margins to the root of the wings light yellow, this colour extending a little inwards 

 at the humeri. Pirst segment of the abdomen black ; the remaining segments red, with the upperside 

 and the distal end brownish ; knob of the halteres mostly black. Pour anterior legs light yellow ; hind 

 femora brown, with the distal end broadly yellow ; immediate base of the hind tibiae yellowish ; 

 hind metatarsi light yellow, its tip and the remaining joints black, like the tibiae. Length 15-18 millim. 



Hab. Mexico, Sierra de las Aguas Escondidas in Guerrero 9000 feet (H. H. Smith). 

 Two specimens. This species is nearest allied to S. rufiventris, O. S. 



LEPIDOPHOKA (p. 160). 



Lepidophora vetusta (p. 160). 

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



A single specimen, apparently conspecific with those mentioned by Osten Sacken 

 (I. c). It has the expanded end of the marginal cell hyaline. Three other examples 

 before me, from Brazil, have the apex of the wings clouded with brown as in the 

 insects referred to L. vetusta in the earlier part of this work; they are also a little 

 smaller. I cannot distinguish the forms otherwise specifically. 



TOXOPHOEA (p. 161). 

 Toxophora amphitea (p. 161). 



To the localities given, add : — Mexico, Chilpancingo in Guerrero (E. H. Smith). 



2. Toxophora varipennis, sp. n. 



9 . Black, shining. Structure of the head as in T. amphitea. Antennae black, with black tomentum. Hair 

 of the occiput nearly white. Mesonotum with sparse black and iridescent tomentum ; sides of the 

 mesonotum and upper part of the pleurae with yellowish and white hair ; bristles black ; pleurae whitish- 

 pollinose. Abdomen with abundant yellow tomentum on the fifth, sixth, and seventh segments, each with 

 two denuded spots ; on the anterior segments the tomentum is black (but the surface of the single specimen 

 is apparently abraded) ; on the venter the tomentum is silvery-white. Legs with silvery-white and 

 yellowish tomentum. Wings deep brown, hyaline and subhy aline ; the hyaline space forms an arcuate 



