278 THE ENTOMOLOGIST. 



antennae and legs testaceous. Head broader than the thorax, 

 broadest before and emarginate behind. Mandibles rufo- 

 piceous, thick and strongly dentate within. Thorax very 

 broad and rounded in front, much narrowed behind. Scale 

 of the peduncle ovate, pointed above. Abdomen ovate, the 

 apical margins of its segments testaceous. The whole insect 

 thinly covered with long, pale, silky hairs. 



8. F. terebrans, Lowne. — Small worker 4 lines long. Head 

 and abdomen black ; antennae, thorax and legs piceous. Head 

 large, broader than the thorax, rounded behind, rufo-piceous 

 anteriorly. Mandibles large, triangular, strongly dentate 

 within and obscurely rufo-piceous. Antennae long and slen- 

 der. Eyes large, ovate and prominent. Thorax rounded 

 anteriorly ; the meso- and metathorax much compressed late- 

 rally, with a small raised ocellate spot on each side of the 

 mesothorax. Scale of the peduncle ovale, pointed above. 

 Abdomen ovate, the apical margins of its segments testa- 

 ceous, thinly covered with pale silky hairs. 



Large worker 5 lines long, with a very large head. 



Female 6 lines long. Black. Wings subhyaline, with 

 fuscous nervures. 



These insects excavate the hard dead stumps of gum trees 

 (Eucalypti) with complicated galleries. Early in October I 

 found winged females only in a nest : they were apparently 

 hybernating, as they were packed closely in closed galleries, 

 which I cut into by accident whilst searching for wood-boring 

 beetles. A iew days after I found swarms of the winged 

 females, clustering about the flowers of Boronias and other 

 Rutacete, for several days. In December I found numerous 

 colonies of these insects, with abundance of large and small 

 workers, but I sought for the sexes in vain. 



9. F. eryilirocepltala, Fab. — I never saw but one specimen 

 of this remarkable insect alive : it was running upon the 

 ground in the bush ; it frequently took a leap of nearly three 

 inches ; it does not run so fast as its form \\ ould lead one to 

 suppose. 



10. F. itinerans, Lowne. — I only know this species by 

 the workers, which are 1 line long. Black or obscurely 

 rufo-piceous, with the abdomen sometimes tinged with blue 

 or purple ; thinly covered with a ghost-pale pubescence. 

 Head nearly twice as broad as the thorax, en)arginate 



