1965] 
Taylor — Pristomyrmex 
43 
Pristomyrmex quadridentatus : Emery, 1922, Gen. Ins., 174c: 234. 
Pristomyrmex (Odontomyrmex) quadridentatus v. queenslandensis Forel, 
1915, Arkiv F. Zool., 9 (16): 53, worker. Type-locality: Mt. Tambou- 
rine (— Tamborine Mountain). NEW SYNONYMY. 2 
Pristomyrmex quadridentatus var. queenslandensis : Emery, 1922, Gen. In9., 
174c: 234. 
Syntype workers. Two quadridentatus syntypes, each labeled 
“Sydney/Duchaussoy/TYPE” have kindly been loaned for study by 
Mile. S. Kelner-Pillault of the Museum National D’Histoire Natu- 
relle, Paris. These specimens are here designated lectotype and 
paralectotype and are so labeled. The paralectotype gaster is missing. 
Judging from subsequent records the Sydney type-locality may be 
outside the true range of this species and should be regarded with 
reservation as a distributional record until confirmed. 
Dimensions as given in Table i (lectotype cited first). General 
features as in Figures 7 and 8. Mandibular dentition as in P. foveo- 
latus. Clypeus with a median longitudinal carina, its anterior border 
with three separated, moderately acute denticles (apparently repre- 
senting the median and outer-lateral ones of foveolatus) . Antennal 
scrobes open posteriorly but well defined dorsally and ventrally by 
distinct sharp sub-parallel carinae. Occipital carina distinct. Scapes, 
in frontal view, laid in the scrobes, exceeding the level of the occipital 
border by about 1.5 X their maximum thickness. Funicular pro- 
portions as in Fig. 7. Ocular Index 17-18. 
Mesosomal profile as in Figure 8. Pronotum with a distinct 
transverse anterior carina. Pronotal spines almost vertical, consider- 
ably stronger than propodeal ones. Mesonotum represented by a 
transverse carina on mesosomal dorsum. Propodeal spines each 
diverging from the midline at an angle of about 12 degrees; about 
equal in size to metapleural spines in lectotype, somewhat smaller in 
paralectotype. Petiole and postpetiole as in Figure 9; petiolar crest 
strongly arched in posterior view ; postpetiole very slightly wider than 
petiole in dorsal view. 
Head and body almost completely lacking sculpturation, smooth 
and strongly shining, except for a little fine shagreening on the 
pronotal collar and slight obscure roughening on the sides of the 
propodeum. Pilosity generally as in P. foveolatus ; petiolar and post- 
petiolar hairs similarly distributed, but with an additional pair on the 
petiolar peduncle (as in the thoracicus female). First gastric tergite 
completely naked. Pubescence virtually absent. 
2 I have not seen the queenslandensis type, but specimens from the Mt. 
D’Aguilar series, listed below, have been directly compared with it for me 
by Dr. W. L. Brown, Jr. 
