112 Dr. R. C. L. Perkins on Aculeate 



dark lines, terminatiag apically in a short transverse line on 

 each side. The lateral dark clypeal lines conneet above 

 with a dark spot, in which the antennse are inserted. 

 Mandibles dark apically. Scape yellow, rest of antennae 

 testaceous. jNIesonotum black bordered with yellow, very 

 widely at the sides in front, but the hind margin is black ; 

 two large discal longitudinal yellow bands, narrowing 

 posteriorly, where they are connected by a transverse band 

 a little in front of the black hind-margin ; anteriorly they 

 are incompletely separated, so that it might be said that a 

 great oblong yellow spot, enclosing an elongate black triangle, 

 occupies the whole middle portion of the mesonotum, except 

 at the hind margin. Most of the pronotum, one or more 

 spots on the tegulse, the tubercles, the mesopleura in frout, 

 a quadrate spot behind this, with a minute one below it, a 

 large spot ojo. the metapleura and a dot below it, yellow. 

 Mesopleura, where not yellow, nearly black. Scutellum 

 with the axillae and postscutellum and nearly the whole of 

 the pro})odeum, except the anterior area, yellow. Anterior 

 area black, with three large yellow spots in a transverse row. 

 Legs yellow, hind tibiae and middle and hind tarsi more 

 testaceous. Abdomen brown, the basal face of the Hrst 

 segment, and two great transverse wedge-shaped spots, 

 almost forming a complete band, on the second, yellow. 



Clypeus and plate above it shining and feebly irregularly 

 punctured, the front of the head below the ocelli dull, with 

 distinct fine but very shallow punctures more evenly distri- 

 buted. Mesonotum dull, with fine, remote, and very shallow 

 punctures. Anterior area of propodcum dull, with only 

 microscopic surface-sculpture. Abdomen more shining than 

 the thorax and with shallow puncturation on the more apical 

 segments. S])ur of hind tibiae with regular lamellate spines 

 decreasing in length towards apex, the basal ones very long. 

 Neuration, except subcosta, mostly pallid yellowish, as also 

 the stigma. 



? . Length G mm. 



Hub. Port Darwin {Dodd). 



Heterapis halictiformis, sp. n. 



Male very slender and elongate, with clavate abdomen. 

 Black, the whole face below tlic autennal fossae and a broad 

 orbital prolongation upwards, not reaching the top of the 

 eyes, the mandibles, malar region, scape of the antenna^ in 

 front, the front coxai, the hind margin of the pronotum 

 and the tubercles, yellow. Flagellum of antcunio pale 



