322 
MEMOIRS OF THE QUEENSLAND MUSEUM. 
a line delicate short fringe ; legs with mainly dark coxse, testaceous trochanters, black 
femora, .testaceous knees, dark-brown tibiae which are pale testaceous at apex, and 
pale testaceous tarsi ; claws simple. The labial palpi have the terminal joint slender 
and very long. Although the insect is so bare of pubescence it is possible to find 
plumose hairs, as in all bees. 
Brisbane, Queensland, Sept. 26, 1916 ( H . Hacker). 
This might be considered a subgenus of Euryglossella, but it seems better 
to regard it as a separate genus. 
He ter apis hackeriella n. sp. 
Female. Length about 4 mm. Shining black ; head rather small, rounded, 
about as broad as long ; clypeus, supraclypeal region, labrum, and mandibles dull 
r uf o -testaceous ; sides of face black, with no pale line along orbits ; antennse rufescent 
beneath ; tubercles pale lemon yellow ; a yellow stripe along upper border of 
prothorax, not nearly reaching tubercles ; basal area of metathorax extremely large, 
longer than scutellum with postseutellum, and dull, contrasting with the shining parts 
anterior to it ; teguke black ; wings clear, with very dark stigma ; legs black, 
anterior tibiae pale red in front, hind tibiae broadly cream -colour at base ; abdomen 
fusiform, broadest at third segment. 
Brisbane (H. Hacker) ; taken (including type) Nov. 7, 1917 ; also Feb. 15, 
Sept. 19, and Oct. 3, 1916. Certain specimens (Aug. 10, 1913, and Sept. 12, 1916) 
have pale lines along anterior orbits ; and one (Sept. 17, 1914) has a black clypeus. 
So far as I can see at present these represent variations. The species is nearest 
to H. delicata Ckll., but distinguished by the round head and the character of the 
markings. It has the peculiar hairs on anterior tarsi. 
MICKODONTUBA new genus. 
Small bees related to Euryglossma, and perhaps only subgenerically distinct, 
but last abdominal sternite produced into a spine (compare Osiris) ; wings with 
two cubital and two discoidal cells, the third discoidal absent. 
Microdontura mellea n. sp. 
Female. Length about 3*5 mm. ; head, thorax, and the long parallel-sided 
abdomen dorsally light reddish brown, approaching honey colour, but more dusky ; 
metathorax practically black, contrasting with the paler scutellum and postseutellum ; 
ventral side of body throughout paler, the colour much lighter and clearer; face and 
very narrow line along anterior orbits pale yellow : labrum and mandibles testaceous, 
the latter black apically ; eyes pale green ; cheeks broad and convex, very pale, 
contrasting with the dark occiput ; head broad, thick, quadrate ; scape pale reddish, 
rather long and slender ; funicle long-oval ; flagellum short and stout, pale reddish, 
dusky above ; mesothorax bare, microscopically transversely lineolate ; area of 
metathorax shorter than scutellum and postseutellum together ; tegulse pale 
rufo-testaceous ; abdomen bare, excessively minutely transversely lineolate ; last 
ventral segment produced into a slender spine, which is bristly beneath. 
Wings hyaline ; stigma hyaline, with faintly dusky margin, the costal side 
not bristly ; marginal cell long, pointed ; two cubital cells, but only two discoidals ; 
second cubital subquadrate, but. narrowed above ; recurrent nervure to first inter - 
cubitus a distance about equal to length of intercubitus ; lower section of basal 
nervure strongly arched ; basal nervure to nervulus equal to less than half lower 
section of basal nervure. 
Brisbane, March, 7, 1918 ( H . Hacker). 
