330 
MEMOIRS OF TEE QUEENSLAND MUSEUM. 
Second segment of abdomen not as long as segment 4; petiole longer than 
hind coxro. 
Segment 2 of abdomen occupying only a fourth of the surface, a little 
longer than 3 and somewhat shorter than 4; segments 2 and 3 
notched at the meson caudad; propodeum without a median 
carina, mound-like at apex; mandibles 3- and 4-dentate. 
Merismomorpha Girault (Type: M. acutivenlris Girault). 
Parapsidal furrows not complete, only cephalad. 
Segments 2 or 3 of abdomen longest, their caudal margins straight (entire). 
Segments 2 and 3 of abdomen long and subequal occupying half the 
surface. 
Petiole of abdomen nearly as long as the hind coxae. 
Mandibles 3- and 4-dentate; propodeum with a distinct neck 
and lateral carinro. Abdomen not long. Postmarginal 
vein slightly longer than the stigmal. 
Eurydinotella Girault (Type: E. prima Girault). 
Segments 2 and 3 of abdomen unequal, 2 longer, combined occupying 
much less than half of the surface. 
Petiole of abdomen much shorter than the hind cox®. 
Propodeum with abbreviated median and lateral carinae; 
abdomen long, pointed conic-ovate, longer than the rest 
of the body; postmarginal vein twice the length of the 
stigmal ; segment 2 of abdomen occupying a fifth of the 
surface, four times the length of 3. Mandibles 3- and 
4-dentate. 
Eu.’ydinofcomorpha Girault (Type: E. pax Girault). 
Propodeum tricarinate, often with a cross-earina, the lateral 
carina} forked; mandibles 4-dentate; segment 2 of 
abdomen occupying about a fifth of the surface, 
abdomen conic-ovate; postmarginal and stigmal veins 
long, the former the longer, nearly as long as the 
marginal. 
Polycysteloides Girault (Type: P. cuprea Girault). 
Segments 2 or 3 of abdomen not longest. 
Petiole of abdomen nearly as long as the hind coxie. 
Propodeum tricarinate, the lateral carina* irregularly curved; man- 
dibles 4-dentate; segments 3 and 4 of abdomen nearly equal, 
longer than 2, which bears a slight sinus at meson of caudal 
margin. Postmarginal vein somewhat longer than the stigmal. 
Polycystella Girault (Type: P. fasciativentris Girault/. 
Tribe PACHYNEURINI. 
Genus PACHYCREPOTDEU3 Girault and Sanders. 
1. PACHYCREPOIDEUS DUBIUS Girault and Sanders. 
One female on a window, Nelson, North Queensland, March 29 and April 13, 19.12. 
This is a parasite of the cosmopolitan, omnipresent Musca domestica Linnaeus, so that it is not 
surprising to find it in Australia. It was described from North America, Later, another 
female was found in a vial labelled 11 From window, Cooktown, Q., Feb. 6, 1912,” and 
another from a window at Herberton, December 28, 1911. 
