TROSOPIS. 23 



18. Prosopis maculipennis. 



Male. Length 2| lines. — Black, with yellow markings ; the wings 

 hyaline and iridescent, a fuscous cloud occupying the marginal cell 

 and extending beyond to the apex of the wing. The face below 

 the antenna) yellow ; the antennas fulvous beneath. Thorax 

 closely punctured ; a line on the collar, the tubercles, a spot on 

 the teguloe in front, the tibial and tarsi yellow ; the tips of the 

 intermediate and posterior tibiae black ; the metathorax truncate 

 and with hoary pubescence, the enclosed space at its base coarsely 

 rugose. Abdomen with the basal segment rather strongly punctured, 

 the following segments more closely and finely so ; the apical mar- 

 gins of the second and following segments with fascial of white 

 pubescence. 



Hab. Mexico, Oajaca. 



19. Prosopis trepanda. 



Female. Length 3 lines. — Black, with yellow markings ; the head 

 and thorax opaque, the abdomen shining. The face on each side 

 of the clypeus, and a line running up nearly to the summit of the 

 eyes, and a line down the middle of the clypeus yellow ; the flagel- 

 lum fulvous beneath. Thorax coarsely punctured : the collar, tuber- 

 cles, a spot on the tegulae in front, the scutellum and a spot at each 

 of its anterior angles, the anterior tibiae in front, and the inter- 

 mediate and posterior pair at their base yellow ; the apical joints 

 of the tarsi ferruginous ; wings subhyaline and iridescent. Abdo- 

 men impunctate ; the base rounded, thence gradually narrowing 

 to a point at the apex ; an elongated patch of white pubescence 

 on the basal segment laterally, a little before the apical margin, 

 also a line on the apical margin of the second segment laterally. 



Hab. Mexico, Oajaca. 



Div. II. The first recurrent nervure entering the second submarginal 

 cell. (Sp. 20-23.) 



20. Prosopis lateralis. 



Female. Length 3 lines. — Tile-coloured red, with the head and 

 metathorax black. The clypeus, labrum, and mandibles red ; the 

 antennas also red ; a narrow white lino at the inner orbits of the 

 eyes. The sternum black ; the coxae, trochanters, and femora 

 blackish, with their articulations reddish ; the legs otherwise red ; 

 wings hyaline and iridescent. Abdomen very convex and sub- 

 globose. 



Hab. Western Australia, Champion Bay. 



