206 HORN EXPEDITION — SUPPLEMENT. 



9. Hypoclinea flavipes, sp.n. 



Worker. — Longtli, "2 mm. I.lack, very clo.soly .uid tinoly punctured, tlie large 

 metanotum ending in an open crescent, witii moderately long, divocging horns ; 

 the central ridge also ends in a projection; scale very long, rounded, and flattened; 

 tarsi and more or less of the mouth-parts and antenna; yellow and testaceous. 



Ants from Porcupine Grass {Triodia pimqetis) Tempe Downs. 



A very small but well-marked specie.?, apparently resend)ling the much larger 

 H. scahrida, Roger, in colour. 



PONEUINyE. 



10. Bothroponera denticulata, sp.n. 



Worker. — Length, 12 mm. Black, pubescent, the mandibles, the extreme tip 

 of the anteniue, the under-surface of the legs, and the incisions of the abdomen 

 more or less rufous. Head and thorax very clo.sely and irregularly rugose and 

 granulated, the pronotum and petiole showing a tendency towards longitudinal 

 striation, head with two strong ridges l.>etween the antenna?, and the occiput 

 somewhat concave. Antennie pubescent, rather stout. Mandil^les broad, strongly 

 punctured, sub-triangular, with nine t(eth, the second, fourth and sixth smaller 

 than the others ; the three last broad, and successively increasing in Icngtli ; the 

 seventh and eighth with a short notcli on the inside at the base. On the other side 

 there are only eight teeth, and the small notches are not visible. The face is set 

 with long yellowish bristles, and the mandibles are akso bordered with smaller 

 bristles, of which there is a row above the teeth, which sometimes render's their 

 exannnation difficult. Tibia with several terminal spines, the last serrated, tarsi 

 set with numerous .short spines, as well as hairs. Petiole longitudinally ridged, 

 the ridges terminating in strong teeth behind ; the middle one is slenderer and 

 rather longer than the others, of which there are about four on each side. 



Blood Creek, several specimens. Allied to the Indian B. rufipes, Jerdon. 



11. Myrmecia nigriceps. 



Myrmecia nii^rice/'S, Mayr., Verb. Zool. Bot. Ges. Wien, XTV., pp. 725-728 

 (1862). 



Reedy Hole, Bagot Creek, Alice Springs (one specimen from each); Ayers 

 Rock and Iliamurta (.several .specimens from (;ach). 



