1910.] NATURAL SCIENCES OF PHILADELPHIA. 365 



Prosopis scintilliformis Ckll. 



9. Length about 4.75 nun.; black, similar to P. perhumilis and 

 oralis, but more slender; mandibles white, rufous at end: narrow 

 creamy-white bands along anterior orbits to level of antennae; clypeus 

 and supraclypeal area entirely black: first r. n. meeting first t. c.; 

 legs marked as in oralis. Scape with a light stripe in front; fiagellum 

 pale fulvous beneath; tubercles and transverse marks on prothorax 

 cream-color. 



cf. Length about 4 mm. ; slender like the 9; face below antenna? 

 (including transverse supraclypeal mark), and lateral marks with 

 pointed extensions upward at sides, all very pale ochreous (perhaps 

 yellower in life). The face-pattern is like that of the larger and 

 more robust P. perhumilis, except that the lateral marks have their 

 inner side longer, extending to beyond the middle of the supraclypeal 

 mark. Both have the fourth antennal joint extremely short. 



Hob. — Mt. Yule, Healesville, on Eucalyptus calophylla rosea, 

 Feb. 20, 1915 (R. Kelly; Brit. Museum). 3 9,1 d 1 . The species 

 was described (1913) from a single female collected at Croydon. The 

 male is very distinct from P. minuscula Ckll. 



Prosopis trimerops sp. a. 



9 . Length about or hardly 4 mm.; another species of the type 

 of P. perhumilis, but very minute, robust; face-marks rufofulvous 

 (probably yellower in life), consisting of a broad clypeal band, broad 

 lower margin of clypeus (leaving long-cuneiform black areas at 

 sides of clypeus), narrow lateral face-marks which end acutely on 

 orbital margin a little above level of antenna?, and large supraclypeal 

 mark, which is broad below, more narrowed above, and ends in a 

 broad truncation between the antennae; the supraclypeal area is 

 convex; scape with a light stripe: fiagellum fulvous beneath; thorax 

 robust, mesothorax finely lineolate and punctured; upper border of 

 thorax without pale marks, and tubercles with only a very narrow 

 yellow edge; legs marked nearly as in P. aralis, but hind basitarsi 

 with only the basal half pale: b. n. almost meeting t. m. ; second 

 s. m. broad, receiving first r. n. near its base. 



Hob.— Yallingup, S. YV. Australia, Nov., 1913, 2 9 (R. E. Tun 

 Brit. Museum.) 

 Prosopis vittatifrons Ckll. 



Perth, Australia, Feb. 1-7. L914 (/?. E. Turner; Brit. Museum). 



Paracolletes halictiformis sp. a. 



9. Length about 8 mm., rather robust, with short wings: black, 

 with mostly white pubescence; head broad: mandibles red. black 



