PK080PIS. 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 antennae yellow ; the antenna; fulvous beneath. Thorax 

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

 the tegular in front, the tibiae 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 fasciae of white 

 pubescence. 



Hah. 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 tegulag 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. 



Hah. Mexico, Oajaca. 



Div. II. The first recurrent nervvre enternu/ the second suhmarginal 



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 

 antennae also red ; a narrow white line 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. 



Hub. Western Australia, Champion Bay. 



