4G 
MEMOIRS OF THE QUEENSLAND MUSEUM. 
tegulse rather small, shining rufous ; wings greyish hyaline, stigma darn brown ; 
second cubital cell broad below, narrower above, receiving first recurrent nervure 
near its end ; third cubital very short, outer recurrent and intercubitus much 
weakened ; femora black with knees red ; tibiae and tarsi red, the colour rather 
dull ; abdomen not specially broad, shining black, pruinose-pubescent with the 
hind margins of the tergites somewhat discoloured or brownish. 
National Park, Queensland, 3.000 ft., March 1, 1921 (A. J. Turner ); 
Queensland Museum. Very close to H. urbanus Smith, but the mesothorax is 
larger and duller. Also close to H. williamsi Cklb, but mesothorax more shining, 
and bluer green, and scutellum shining. These bees could be regarded as local 
races of //. urbanus, unless the males show structural differences. The original 
H. urbanus came from Champion Bay, W. Australia. 
Halictus dorsicyaneus sp. n. 
Female. Length about 5 mm., not very robust, abdomen not broadened ; 
head black ; mesothorax small, dark blue, shining but not polished ; scutellum 
blue, with two polished shining spaces ; metathorax black ; area large, finely 
sculptured, semicircular, without a shining rim ; flagellum obscurely rufescent 
beneath ; hair of head and thorax scanty, white ; tegulse small, dark rufous ; 
wings clear hyaline ; stigma large, pale brownish, nervines pale, outer ones 
very weak ; second cubital cell rather broad, receiving recurrent nervure before 
its end ; legs black, knees and small joints of tarsi red ; abdomen shining 
black, with little hair, the apical part thinly pubescent. The mesothorax is 
microscopically tessellate, with scattered punctures ; the area of metathorax, 
seen under the microscope, is coarsely reticulate. 
Launceston, Tasmania, Jan. 23, 1916 (F. M. Littler). In my table it 
runs to H. kesteveni Ckll., which differs at once by blue metathorax. Compared 
with H. inclinans Smith, it is less robust, with darker tegulse and different 
abdomen. 
Halictus luctificus sp. n. 
Female. Length about 5-4 mm., rather robust head black, mesothorax 
dull very dark green, scutellum dark blue, with two polished areas ; area of 
metathorax large, crescentic, dull and coarsely sculptured (minutely reticulate, 
appearing coarsely so under microscope), with a very conspicuous regularly 
curved shining margin ; metathorax black ; hair of head and thorax very 
scanty : tegulse dark rufous ; wings clear hyaline, with pale testaceous stigma 
and pale nervures, the outer recurrent and intercubitus very weak ; first 
recurrent nervure joining basal corner of third cubital cell, the outer and lower 
boundaries of which are reduced to thin hyaline lines, hardly visible even 
under the microscope ; legs with knees and small joints of tarsi red ; abdomen 
broad, shining black, thinly pubescent in the apical region. The supraclypeal 
area is polished, with scattered punctures, and the punctures on clypeus are 
very large. 
