26 Mr. T. I). A. Cockerell — Descriptions and 



cream-coloured : bow-shaped lateral face-marks, going a 

 short distance above antennae, mandibles except apex, some- 

 times two short lines on upper border of prothorax, spot on 

 tegulee, knees, anterior tibiae in front, middle tibiae except a 

 huge dark mark behind, and basal half of hind tibia?. Tarsi 

 yellowish white, with the small joints becoming reddish ; 

 flagellum ferruginous beneath. Wings clear, iridescent, the 

 large stigma and the nervines brown ; first s.m. very long, 

 receiving first r. n. near its apex. Runs in my table to o'd, 

 and may there be easily separated by its minute size. 



Hab. Mackay, Nov. 1899, at flowers of Eugenia, four $ s 

 {Turner, 862) ; also one, Nov. 1893. Three are in British 

 Museum; two in my collection, thanks to Mr. Turner. 



(The numbers cited in this and other cases refer merely to 

 the specimens before me. Of many of the species I saw lono- 

 series in Mr. Turner's collection when at the British Museum 

 last year.) 



Prosopis microphenaXy sp. n. 



<$ . — Length slightly over 4 mm. 



Black, very minutely punctured, with pale lemon-yellow 

 clypeus, labium, and large cuneiform lateral marks, the last 

 broadly truncate above at lower level of antennal sockets, 

 which produce a concavity in the edge of the yellow ; no 

 supraclypeal mark ; mandibles obscurely pallid ; tubercles 

 pale edged ; flagellum dull ferruginous beneath ; teguhedark 

 brown ; nervures and stigma brown ; tarsi, anterior tibiae in 

 front, and basal third of hind tibiae light ; middle tibiae short 

 and black ; area of metathorax shining, superficially like 

 P. tugeniella, but the venation is quite different ; the wings 

 also are dusky at the apex. The second s.m. is large, broader 

 than high, and the first r. n. joir.s the first t.-c. ; in eugeniella 

 the second s.m. is much higher than broad. The mesothorax 

 is more coarsely roughened than in eugeniella, and it and the 

 dark parts of the head are a pure black, whereas these parts 

 in eugeniella are seen by comparison to be a greenish black. 



Hab. Mackay, March 1900 {Turner). British Museum. 



This runs to the same place in the table as eugeniella. 



Prosopis microphenaX) Ckll., var. a. 



$ . — Length almost 5 mm. 



Tubercles broadly yellow, with a dark dot; postscutellum 

 with a small yellow spot. This runs in the table next to 

 P.frederici, var., but is easily separated by the small size and 

 black scutellum. 



