NEW AUSTRALIAN BEES. 
41 
surface densely sculptured all over, finely reticulate ; posterior truncation 
sharply margined at sides ; upper margin of prothorax at sides, and margin of 
tubercles, densely pale-tomentose ; tegulse ferruginous ; wings hyaline, slightly 
dusky, stigma and nervines light ferruginous ; second cubital cell very broad ; 
first recurrent nervure meeting intercubitus ; outer recurrent and intercubitus 
weakened ; hind spur simple ; abdomen shining, with erect pale hair at base 
and sides ; basal pale ochreous-tinted hair-bands on segments 2 to 4, broad 
at sides, contracted or interrupted in middle ; extreme apex with red hair. 
Moree, N.S.W., March 1923 {A. P. Dodd) ; Queensland Museum. Related 
to H. conspicuus Smith (of which H. albogutlatus Friese appears from the 
description to be a synonym), but with bands instead of spots on the abdomen. 
Halictus picticornis sp. n. 
Male (type). Length about 4-5 mm., anterior wing 3.5 ; black, the 
clypeus with a broad yellow band (its upper margin rounded) ; mandibles 
ferruginous ; flagellum bright ferruginous beneath, with the last three joints 
black ; tubercles clear ferruginous, this colour extending some distance along 
the margin of the prothorax ; teguke bright ferruginous ; knees red, and 
basitarsi pale dull reddish ; abdomen somewhat brownish, first tergite with a 
broad bright ferruginous margin, second less conspicuously reddened apically ; 
pubescence scanty and pale, the abdomen with thin hair, but no bands or 
patches. Face narrow, eyes converging below : clypeus strongly produced ; 
antennae of moderate length ; front and mesothorax very densely punctured, 
the 'mesothorax slightly shining; postscutellum with a dense tuft of hair; 
area of metathorax minutely rugulose all over, with no shining margin ; wings 
greyish hyaline, stigma rather small, dark reddish ; nervures very dark, the 
outer ones strong ; second cubital cell narrowed above, ungulate where it 
receives the recurrent nervure some distance from end ; abdomen shining, 
second tergite with a basal depression. 
Female. Length about fro mm. ; black, with mandibles reddened 
apically ; flagellum clear bright ferruginous beneath, except at base ; thorax 
entirely black ; mesothorax evidently shining, with well -separated punctures on 
a minutely sculptured (not polished) surface ; area of metathorax semilunar, 
densely covered with irregular vermiform rugae, with no shining rim ; legs 
obscure brownish ; anterior knees red, hind spur with four or five very short 
oblique teeth, and one large obtuse one ; nervures rather paler, and outer ones 
weaker, than, in male ; abdomen shining black, hind margins of tergites 
obscurely brownish ; no bands or patches, but a thin covering of pale hair 
giving a pruinose effect. 
Caloundra, 1916 (H. Hacker ) ; Queensland Museum. The male Jan. 20, 
the female Jan. 2. The male will be easily recognised by the peculiar antennae. 
The female is very near H. plebeius Ckll., but smaller, with yellowish and 
fuscous hair on hind legs. It is also allied to H. globosus Smith. 
