AUSTRALIAN HYMENOPTERA CHALCIDOIDEA, IV.— GIRAULT. 
201 
19. TETRASTICHUS SAINTPIERREI Girault. Female. 
Brilliant metallic grass green; the legs white except hind coxa; proximal third of 
abdomen orange yellow, the rest purple, the latter projecting at each lateral margin a little 
ceplialad into the yellow; wings hyaline. First funicle joint longest. 
Habitat: Nelson (Cairns), Queensland. Associated with Melaleuca, forest. 
Type: No. Hy 1753, Queensland Museum. 
20. TETRASTICHUS LADDI Girault. Female. 
Like queenslamdensis but the femora and pedicel concolorous, the distal funicle joint 
shorter and the propodeal spiracle is laterad of the lateral carina. 
Habitat: Nelson (Cairns), Queensland. 
Type: No. Hy 1754, Queensland Museum. 
21. TETR ASTICHUS MITTAGONGENSIS Girault. Female. 
Like laddi but the propodeum is longer, the distal club joint spined at apex. 
Habitat: Mittagong, New South Wales. 
Type: No. I. 1232, South Australian Museum, Adelaide. 
22. TETRASTICHUS POINCAREI Girault. Female. 
Like queenslandensis Girault but the femora concolorous and the abdomen produced into 
a slender stylus. Each funicle joint about twice longer than wide and only slightly unequal. 
Spiracle of propodeum laterad of the lateral carina. 
Habitat: Nelson (Cairns), Queensland. Jungle. 
Type: No. Hy 1755, Queensland Museum. 
23. TETRASTICHUS BICOLOR Girault. Female. 
Like flavios but black, the antennas black, the distal joint of funicle distinctly longer 
than wide; proximal third of abdomen lemon yellow, also the tegulas and legs. Hind coxa 
black. Median carina of propodeum short. 
Habitat: Nelson (Cairns), Queensland. 
Type: No. Hy 1756, Queensland Museum. 
24. TETRASTICHUS MARGIVENTRIS new species. 
Female: Length, 2.00 mm. With the habitus of OotetrasticJius. 
Jet black, the wings hyaline, the coxa) concolorous, the legs and abdomen deep orange 
yellow, the abdomen at distal fourth or less and the lateral margins from base to tip rather 
bioadly (continuously from dorsal to ventral aspects) black. Scape yellowish along proximal 
two thirds, elsewhere the antenna? black; pedicel elongate but shorter than the third funicle 
joint which is shortest of the funicle, the very long first funicle joint longer than the club, 
