“I 
TACHINIDAE OF AUSTRALIA 69 
Abdomen with Tr + 2 excavate only on its basal half. Second costal sector haired 
ventrally. Humeral callus usually with only two strong setae (sometimes a weak 
third seta set forwards of main two or mesad of inner one of main _ Slender 
forms with rather long narrow abdomen . 4 
Pteropleuron with a strong pteropleural seta in addition to the hairing. Parafacials 
bare or at most haired only on upper half. Eyes bare or almost so. Infrasquamal 
hairs absent. Arista bushy plumose or micropubescent  . 5 
Pteropleuron without any seta in addition to the hairing. Paratncials fully fenced. 
Eyes haired (hairing very short and sparse in some specimens). Infrasquamal 
hairs present [careful examination needed]. Arista bushy plumose 
APATEMYIA Macquart 
Propleuron bare. Proboscis short, mentum shorter than eye-height and wider in 
profile than third antennal segment. Pleural eget of thorax with black hair. 
Hind tibia of both sexes with two pd setae : 6 
Propleuron haired. Proboscis very slender, calories longer fhan a height aud 
narrower in profile than third atennal segment. Pleural regions of thorax with 
yellowish white hair. Hind tibia of f with one pd seta (unknown for Q, possibly 
two pd in this sex) : . TOXOCNEMIS Macquart 
Parafacials totally bare. Arista with short bushy plumosity or long pubescence. 
Rows of frontal setae irregular at lower ends where frontal setae form a rather 
dense bunch on the profrons (especially in g): 4 abdomen with long fine erect or 
semi-erect hairing. Intermediate abdominal tergites often with erect (rather 
variable) discal setae. : . Undetermined genus 
[Running out here is a complex of forms with exactly similar appearance in 
most respects to Toxocnemis (head profile as Text-fig. 43) but differing by the 
characters shown in the key, most notably by having the propleuron bare. This 
complex will either require a new genus or will need to be placed in Toxvocnemis on 
a redefined basis] 
Parafacials haired on upper half or at least with a few hairs immediately below the 
lowest frontal seta. Arista micropubescent (appearing almost bare at first glance). 
Frontal setae in one regular row on each side, not duplicated into a bunch of setae 
on the profrons. dg abdomen with short recumbent hair. Intermediate abdominal 
tergites without discal setae . ; . RHINOMYOBIA Brauer & Bergenstamm 
Wing vein R,,; completely bare. Proboscis short, mentum much shorter than 
eye-height. Hind tibia without pu apical seta. Vibrissae level with epistomal 
margin. Fore tibia without pd setae. Hind tibia with one pd seta Undetermined genus 
[Running out here is an unidentified species seen from A.C.T. that cannot be 
satisfactorily assigned to a genus at present. The species is congeneric with 
‘Rhinomyiobia’ minuta Bezzi from Fiji.] 
Wing vein R,,, with several setulae on basal node and usually for some distance 
along the vein towards y-m. Proboscis long and very slender, mentum longer 
than height of the head. Hind tibia with a small pv apical seta. Vibrissae 
distinctly above level of epistomal margin. Fore tibia with some small pd setae 
or setulae distinct from the hairing. Hind tibia with two or more small pd 
Setae: « : : : é : : , ‘ . SIPHOLESKIA Townsend 
Prosternum bare. Arista micropubescent. Eyes haired (hairing very short and 
inconspicuous in 9). Abdominal T5 with a transverse discal row of very strong 
setae in addition to the apical row. Humeral callus with the three main setae 
distinctly arranged inatriangle . : : . 9 
Prosternum setulose. Arista with long ilerettosiey. ‘Byes. bare. Abdominal T5 
without a discal row of setae, only with apical setae. Humeral callus with the 
three main setae standing almost in a straight line . : . New genus 
[Running out here are Rhinomyobia transversalis Malloch from Queensland and 
R. plumifera Bezzi from Fiji, together with some unnamed forms from New 
