AUSTRALIAN CERAPACHYINI. 229 



3. Eusphinctus (Eusphinctus) steinheili var. duchaussoyi 



Ern. Andre. 



Eusphinctus duchaussoyi Ern. Andre, Rev. d'Ent., 1909, p. 205, ^ 9 . 



Sphincfomyrmcx (Eusphinctus) duchaussoyi Emery, Gen. Insect. 

 Ease. 118, 1911, p. 7. 



New South Wales: S^'dney (A. Duehaussoy). 



Judging from Andre's description this form, too, is hardly more 

 than a variety of steinheili. It is distinctly smaller, the worker 

 measuring only 2.5-3 mm., the female 2.7-3 mm. The color is paler 

 as in hedwigce and the punctures are different, being described as 

 sparse and a little larger and less abundant on the head and thorax 

 and finer and denser on the abdomen. 



4. Eusphinctus (Eusphinctus) steinheili var. cedaris Forel. 



Sphinctomyrmex (Eusphinctus) fallax var. cedaris Forel, Ark. f. 

 Zool. 9, 1915, p. 16, y 9 . 



Queensland: Cedar Creek (E. Mjoberg). 



Of about the same size as duchaussoyi, the worker measuring 2.5- 

 2.6 mm., the female 2.9 to 3.1 mm. The petiole of the worker is 

 more steeply truncate in front below than in steinheili, the punctures 

 are sharper and denser on the abdomen, but feebler and sparser on 

 the head. In the female the eyes are smaller, consisting of only 

 about 8 or 9 indistinct facets. 



5. Eusphinctus (Eusphinctus) hacked sp. nov. 



(Fig. 3.) 



Worker. Length 1.5-1.7 mm. 



Head rectangular, fully 1| times as long as broad, as broad behind 

 as in front, A\'ith straight, parallel sides, rather deeply excised posterior 

 border and short, blunt posterior corners. Occipital border margin- 

 ate. Eyes and ocelli absent. Mandibles not abruptly flexed at the 

 base, their apical and basal borders not distinctly separated, the former 

 minutely denticulate. Frontal carinse approximated, surrounding 

 the antennal insertions in front, confluent behind and truncated in a 

 depression connecting the antennal fovete. Carina of cheeks short 

 and indistinct. Antennae robust; scapes about | as long as the head, 



