264 
MEMOIRS OF THE QUEENSLAND MUSEUM. 
5. GYROLASELLA WORCESTERX new species. 
Female: — Length, 0.90 mm., excluding ovipositor which projects beyond tip of abdomen 
for over half the latter’s length. 
Like Atoposomoidella channingi Girault but much less robust and the legs are all 
pallid; also the large area on the scutum is conical, its acute apex just reaching the distal 
margin and the metallic green centre of the scutellum is rectangular, slightly narrowing 
distad, extending from base not quite to apex and not reaching from side to side to the two 
grooves; the parapsidcs are only narrowly green along the caudal half or more of the mesal 
margin; propodeuin with two stripes across it. Wings hyaline. (Pronotum not seen well but 
all green.) Head dusky, vertex orange yellow. Mandibles 5-dentate. Pedicel distinctly 
longer than any joint of the funicle or club. 
Male : — Not known. 
Described from a single female captured by sweeping along the banks of Cape River in 
forest, January 6, 1913. 
Habitat,: Capeville (Pentland), Queensland. 
Type: No. Hy 1893, Queensland Museum, the above specimen on a slide. 
This species was at first mistaken for an Atoposoma, but the submarginal vein is more 
broken than usual with that genus and the pronotum is short. 
ELACI1ERTETRASTICHUS new genus. 
Female: — With the build of TeltasUchocles margiscutum Girault, that is short and 
compact, the abdomen almost round from lateral aspect, no longer than the thorax. Scutellum 
without grooves. With the habitus and structure of Tetrastiehus except as noted, yet the 
submarginal vein with only a slight break, not broken in the usual way and plainly different; 
postmarginal vein barely developed, the marginal plainly shorter than the submarginal. Head 
normal, the mandibles tridentate, the antennas short and stout, inserted somewhat below the 
middle, 11- jointed, the funicle 2-, the club 3- jointed as in Gyrolasella, but there are four 
distinct ring-joints. Propodeum very short, the median carina very weak or absent. Scutum 
simple, the parapsidal furrows very deep. 
Male: — (See beyond.) 
Type : The following species. 
1. ELACHERTETRASTICHUS PURPUREUS new species. 
Female: — Length, 1.65 mm. 
Dark metallic purple with bluish tinges, the wings hyaline, the knees, tibia) and tarsi 
-white, the distal tarsal joint dusky black; antennae dusky black, the club paler, the scape 
white beneath, the two funicle joints short, equal, somewhat wider than long; no nipple 
on club; pedicel a little longer than either funicle joint; chib somewhat enlarged. Mesopleuruin 
bluish. Thorax finely, densely scaly. Hind tibia with a small dusky spot some distance below 
knee. 
Described from one female reared from a gall on the foliage of Eucalyptus in forest, 
September 18, 1912. 
Habitat: Nelson (Cairns), Queensland. 
