26 Mr. T. D. A. Cockerell — Descriptions and 



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

 sliort distance above antennas, mandibles except apex, some- 

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

 tegula?, knees, anterior tibiaj in front, middle tibire except a 

 large dark mark behind, and basal half of hind tibise. Tarsi 

 yellowish white, with the small joints becoming reddish ; 

 flagellum ferruginous beneath. Wings clear, iridescent, the 

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

 receiving first r. n. near its apex. Huns in my table to 33, 

 and may there be easily separated by its minute size. 



llab. Mackay, Nov. 1891', at flowers of Eugenia, four ? s 

 (7'«rMcr, 862) ; also one, Nov. 1893. Three are in British 

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



(The nun)bers 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 microphenaa:, sp. n. 



(^ . — Length slightly over 4 mm. 



Black, very minutely punctured, with pale lemon-yellow 

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

 bioadly truncate above at lower level of antennal sockets, 

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

 supraclyjieal mark ; mandibles obscurely pallid ; tubercles 

 pale edged ; flagellum dull ferruginous beneath ; tegulsedark 

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

 front, and basal third of hind tibise light ; middle tibiaj short 

 and black ; area of metathorax shining, superficijilly like 

 P. tiigenieUa, 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. joins the first t.-c. ; in evgeniella 

 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 evgeniella are seen by comparison to be a greenish black. 



Hah. Mackay, March 1900 (lurner). British Museum. 



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



Prosopis microphenaXj Ckll., var. a. 



^ . — Length almost 5 mm. 



'1 i.bercles broadly yellow, with a dark dot; postscutellum 

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

 P.fiidericiy var., but is easily separated by the small tize and 

 black scutellum. 



