158 MEMOIRS OF THE QUEENSLAND MUSEUM. 



Also fimicle 6 is black as well as the elub. A stripe across the houey yellow abdomen at base, 

 margins of abdomen centrally, propodeum, the part of the mesothorax just laterad of scutellum 

 and a concave curved stripe across abdomen at about middle about in the shape of a U, 

 purplish. Fore wings embrowned margin to margin from about the marked concave bend of 

 the submarginal vein to apex but obscurely clearer at apex centrally, distinctly clear in a 

 triangular spot just distad of postmarginal vein and a larger oblong area opposite at caudal 

 margin. Discal cilia iiroximad of hairless line about two lines, coarser and blacker than the 

 other ciliation. Vertex shagreened. Segment 3 of abdomen occupying mure than half the 

 surface. 



From one female caught sweejjing in forest, June 27, 3913. 



Habitat: Gordonvale (Cairns), Queensland. 



Type: No. HySllG, Queensland Museum, Brisbane, the specimen on a tag. 



5. CRISTATITHORAX VIRIDISCUTUM new species. 



Female: — Length, 1.4.5 mm. 



Like mackayensis but a little stouter, tlie abdomen broader, less pointed, the middle 

 of the propodeum visible and yellowish, the metallic green band across the base of abdomen 

 narrow and only a little purplish on abdomen above centrally. Legs all white except caudal 

 knees and a dusky baud above and one below middle knees. The scutum is distinctly longer. 

 Scape rather greatly swollen its entire length, the club dusky, much enlarged, longer than the 

 funicle. Funicle and pedicel dusky, scape yellow. Scape hardly more than a half longer than 

 broad. Frons four times as wide as an ocellus. Funicle 6 longest and widest. Fore wings 

 about as in maclayensis and so the mandibles. Axilloe slenderly joined not distinctly so as in 

 7nackayensis and with a short carina between as in that species. First five funicle joints 

 annular. 



From one female caught August 12, UI13, sweeping forest (A. P. Dodd). 



Habitat: Gordonvale (Cairns), Queensland. 



Type: No. Hy3117, Queensland Museum, Brisbane, the female on a tag, the head and 

 a fore wing on a slide. 



6. CRISTATITHORAX NOVIMANDIBULARIS new species. 



Female: — Similar to iiiaiiilibiihirLt but honey yellow, the axillae distinctly separated for 

 some distance, the pronotum also purple. Middle legs with .a dusky spot just below knee. 

 Frons somewhat narrower. Abodomen mostly all purplish. 



From two females caught crawling over a seashore plant infested witli unarmored 

 coccids, October 30, 1911. 



Habitat: Port Douglas. Queensland. 



Ti/pcs: No. Hii-UlS. Queensland Museum. Brisbane, the specimens on a tag; iieads on :\ 

 slide. 



7. CRISTATITHORAX MACKAYENSIS new species. 



Female: — Length, ].3l) mm. Short, rather stout. 



Orange yellow, scutum dark metallic green; propodeum and a rather broad strijie across 

 Ijaso of the abdomen washed with the same color; knees, caudal legs except articulations and 

 t.arsi and ventral edge of the somewhat swollen scape, dusky. Pedicel at base above, club, 

 first two funicle joints and part of the third, black. Tuft of hairs On scutellum black, the 

 sclerite finely longitudinally scaly striate; axilte broadly joined, transversely scaly reticulate. 

 Ocelli in a nearly equilateral triangle, the frons moderately narrow. Scutum with short silvery 

 jiubescence. Pedicel distinctly longer than any of the funicle joints, all of the latter plainly 

 wider than long, 3 and 4 shortest. Second tooth of mandible subtruncate, the third tooth thus 

 not formed. Fore wings embrowned to apex from base of marginal vein but the apex is 



