222 MEMOIRS OF THE QUEENSLAND MUSEUM. 



4. APROSTOCETUS OBSCURUS Girault. 



A female, jungle, Babinda, Queensland, February 13, 1914 (A. P. Dodd). Funicle 1 is 

 only about one and a half times longer than wide. The pronotum is metallic bluish, perhaps. 



5. APROSTOCETUS IMAGO new species. 



Female: — Length, 1.25 mm. Short, stout, the propodeum very short, the abdomen stout. 



Almost exactly the image of Tetrastich odes secus Girault but stouter, greenish yellow, 

 the pronotum broadly along meson is black; also the long scutum bears a distinct sulcus and 

 is of the usual sculpture of the tribe (in secus, the scutum is very minutely, densely reticu- 

 lately scaly). There is no minute dot just mesad of tegula. Pedicel black above at base, 

 subequal to funicle 2 which is longest, somewhat longer than wide; funicles 1 and 3 subequal, 

 quadrate. Club with a distinct terminal spine. Outer tooth of mandible distinct, acute, the 

 inner two shorter, acute. Compared with type of secus. Abdomen with two distinct stripes 

 at middle. 



From one female caught by miscellaneous sweeping, May 11, 191-1 (A. P. Dodd). 



Habitat: Murwillumbah, New South Wales. 



Type : Xo. Hy 2555, Queensland Museum, Brisbane, the specimen on a tag, the head 

 on a slide. 



This species is remarkably like the Tetrastichodes. The third club joint is obliquely 

 divided from the others. 



6. APROSTOCETUS PLATONI new species. 



Female: — Length, 1.20 mm. 



Greenish yellow, the wings hyaline, the propodeum except caudad on each side of 

 meson, ocellar area, most of axillae, four to five spots on each side of abdomen, the space 

 between the third and fourth occupied by a broad smoky cross-stripe (at middle of abdomen 

 or nearly) and tegula?, dusky black. Propodeum with a short median carina and several 

 irregular carina? near the spiracle. Scutellum laterad of second groove, blackish. Funicle 

 joints 2 and 3 subequal, a little longer than 1 which is not much longer than wide; pedicel 

 as long as funicle 2. Mandibles tridentate, the two outer teeth acute and longer. Distal 

 club joint with its separating suture oblique, its terminal spine small but distinct. 



Male: — Not known. 



Described from two females reared from a miscellaneous collection of galls from forest 

 trees, November 8, 1913. 



Habitat: Gordonvale (Cairns), Queensland. 



Types : No. Hy 3457, Queensland Museum, Brisbane, the above specimens on a slide. 



The species is dedicated to the philosopher Plato. 



7. APROSTOCETUS TARSALIS new species. 



Female: — Length, 1.22 mm. 



Dark metallic purple, the abdomen honey yellow margined rather narrowly with purple 

 from base nearly to apex, dorsad with a mesal purple transverse spot tending to be a cross- 

 stripe (faintly so from each side of the meson) at middle followed by a round spot on the 

 next segment at meson. Coxae and proximal third of femora coneolorous; rest of legs and 

 scape colored like the abdomen; pedicel and ring-joint suffused with yellowish. Funicle joints 

 elongate, each distinctly much longer than the pedicel, 1 a little the longest, over twice longer 

 than wide, not quite as long as the club, the latter with a distinct terminal spine. Pedicel 

 only a third longer than wide at apex. Mandibles edentate, obtusely pointed; oral area 

 orange yellow. Abdomen at base but xery narrowly purple if at all. Propodeum distinctly 



