AUSTRALIAN HYMENOPTERA CHALCIDOIDEA, XII.—GIRAULT. 277 
SusBraAmMiIny MONODONTOMERIN A. 
GENUS DIMEROMICRUS Crawford. 
1. DIMEROMICRUS AUSTRALIENSIS Girault. Female. 
Length, 2 mm., excluding ovipositor which is longer than the abdomen. 
Brilliant shining metallic eneous green with a bluish tinge, the legs concolorous 
excepting the knees, tibiee and tarsi, which are lemon yellow. Antenne and valves of ovipositor 
black; wings hyaline. Scape metallic; club verging to brown. First funicle joint variable, 
usually smallest, all shorter than the pedicel. Second ring-joint largest. Sculpture as in 
type species. Mandibles tridentate. 
Habitat: Lawson and Forest Reefs, New South Wales. 
Type: I.1291, South Australian Museum, Adelaide. 
2. DIMEROMICRUS BREVIVENTRIS Girault. Female. 
Length, 1.25 mm. 
Like australiensis but the tibie also concolorous, the ovipositor somewhat shorter, sub- 
equal to the abdomen in length; also the first funicle joint is subequal to the others, all sub- 
transverse. Hind femur beneath excised at apex the excision forming a false tooth or 
small obtuse triangular piece at its proximal edge (not an isolated or true tooth). Thorax 
reticulately scaly. Propodeum with a median carina, together with the abdomen reticulated. 
Seutellum with a trace of a transverse suture at extreme apex at meson but this appears to 
be due to pressure, the specimens have been in balsam on a slide. Otherwise agreeing with 
australiensis. 
Habitat: Brisbane, Queensland. Forest, April 16, 1913 (H. Hacker). 
Type: No. Hy 3292, Queensland Museum, Brisbane, the female on a tag and a slide 
bearing the appendages. 
GENUS AMONODONTOMERUS Girault. 
Agreeing with Monodontomerus Westwood but the abdomen petiolate, the eyes naked, 
the posterior femora simple, not swollen nor with teeth. Scutellum with a cross-furrow; 
ovipositor not half the length of the abdomen; abdominal segments with their posterior 
margins straight. Antenne 12-joimted with one long ring-joint, the club stout, 4-jointed. 
Stigmal vein with a distinct neck, the postmarginal vein longer than the marginal. Antenne 
short and clavate, the funicle joints transverse. 
1. AMONODONTOMERUS VIRIDIS Girault. Female. Genotype. 
Length, 2.50 mm. 
Brilliant metallic green, the antennz, the ovipositor and the legs (excepting coxz) 
reddish brown, the middle of the posterior femora sometimes metallic greenish; valves of 
ovipositor black. Wings hyaline; the venation dusky. Head and thorax finely transversely 
lined and with scattered pin-punctures, the latter arranged in about two transverse lines on 
the pronotum. Abdomen smooth and shining but also with the punctures across the cephalie 
portions of the segments. Petiole roughened. Club sunken and obliquely truncate along one 
side. The measurement is exclusive of the ovipositor. 
Habitat: Port Lincoln, South Australia. 
Type: No. I. 1291, South Australian Museum, Adelaide. 
GENUS MACRODONTOMERUS Girault. 
Like Plesiostigmodes Ashmead but the pronotum normal, not by far as long as the 
mesonotum; scutellum without a cross-furrow; abdomen produced ventrad at middle, triangular 
from lateral aspect. Otherwise the same. 
