Aphiura borgmeieri, DISNEY, 2003

DISNEY, R. H. L., 2003, Tasmanian Phoridae (Diptera) and some additional Australasian species, Journal of Natural History 37 (5), pp. 505-639 : 520-521

Key to species of Aphiura

1 Male ...................... 2 – Female..................... 9

Note: If uncertain about the sex see couplet 1 of the key to Megaselia .

2 Femora essentially yellow................ 3 – Femora essentially brown................ 4

3 Scutellum with an anterior (outer) pair of bristles and a posterior (inner) pair of hairs................... palpalis Borgmeier

– Scutellum with a single pair of bristles only..................... [presumably the undescribed male of borgmeieri sp. nov.]

4 Scutellum with two pairs of bristles, but the inner (posterior) pair may be shorter

and finer. Two basal segments of arista each>3× as long as broad (e.g. figures 3B, 6B).................... 5

– Scutellum with an outer (anterior) pair of bristles and an inner (posterior) pair of minute hairs. Two basal segments of arista <3× as long as broad............... [presumably the undescribed male of dissona Borgmeier]

5 Right posterolateral lobe of epandrium tapered to a blunt point (figure 2C)....

.................... breviceps Schmitz – Right posterolateral lobe of epandrium irregularly truncated or rounded behind

(figures 1D, 3D, 5).................. 6

6 Right lobe of hypandrium elongated (figure 5A). Third antennal segment lacks the

normal subcircular SPS vesicles, but its upper-inner face has a series of confluent pits at base (figure 4C). Palp with large, irregular, pits on outer face (figure 4C)........................ distinctus sp. nov.

– Without this combination................ 7

7 Palps with large irregular pits on outer faces (figures 3A, 6A). SPS vesicles of third

antennal segments more numerous and relatively small (figures 3B, 6B).... 8 – Palps without large irregular pits on on outer faces (figure 1A). SPS vesicles of third antennal segments fewer and relatively large (figure 1B). (Hypopygium as figure 1C,

D.).................. alistairi sp. nov.

8 Penis complex dark brown. Hypandrium with posterior lobe of left side greatly reduced, with a complex large median lobe (figure 6C) and a short but broad right lobe................... tasmaniensis sp. nov.

– Penis complex more orange-brown. Hypandrium with a large, distally bare, left lobe; a hairy, subequal, median lobe (figure 3C); and a short, but broad right lobe....................... cynthiae sp. nov.

9 Femora essentially yellow................ 10

– Femora essentialy brown................ 11

10 Scutellum with a pair of outer (anterior) bristles and an inner (posterior) pair of hairs................... palpalis Borgmeier

– Scutellum with a pair of bristles only........ borgmeieri sp. nov. 11 Scutellum with two pairs of bristles, but the inner (posterior) pair may be shorter and finer. Two basal segments of arista each>4× as long as broad (e.g. figures 3B, 6B).................... 12

– Scutellum with an outer (anterior) pair of bristles and at most an inner (posterior) pair of minute hairs, but these may be absent. Two basal segments of arista may be <4× as long as broad................. 16

12 Abdominal tergites 2–3 with bristle-like hairs at sides (figure 71). T6 as figure 72A. Palp with conspicuous pits on outer face (figure 72B). SPS vesicles of third antennal segment mainly smaller than diameter of lower SA bristle, but two to four are as large as socket of upper SA (figure 72C). Posterior (inner) pair of scutellar bristles strong and at least 0.8× as long as anterior pair. Haltere knob paler brown than stem and partly whitish yellow. Costsal section 1 a little broadened from beginning of second third and then gradually narrowing again....... species O

– Without these features combined.............. 13

13 Costa swollen from end of first quarter of section 1 to end of first third of section 2 (figure 2B). SPS vesicles of third antennal segment relatively few and several are relatively large (cf. figure 1B). Palps with only small and obscure pits in dorsal, external region. (Abdominal T5–T6 as figure 2A.)...... alistairi sp. nov.

– Costa not swollen in this manner. SPS vesicles relatively numerous and smaller (e.g. cf. figures 3B, 6B). Palps with large and obvious pits in dorsal, external region.. 14

14 Thick veins yellowish brown and wing membrane typically distinctly brownish grey tinged...................... 15

– Thick veins brown and wing membrane only very lightly tinged grey................ probably the undescribed female of breviceps Schmitz

15 Wing membrane distinctly brownish grey to naked eye (when viewed against a white background). (Abdominal tergites 5–6 similar to that of A. alistairi (figure 2A) with numerous SPS vesicles in third antennal segment as in male—figure 3B.)........................ cynthiae sp. nov.

– Wing only lightly tinged brownish grey probably the hitherto unknown female of tasmaniensis sp. nov. Note: The unknown female of A. distinctus probably runs out here. It may be recognizable from the antennae and unusually long basal segments of the arista (if these resemble those of the male)...........

16 Basal segments of arista <4× as long as broad. Posterior scutellars almost as strong as hairs at rear of scutum. Posterior part of abdominal tergite 6 subquadrate...................... dissona Borgmeier

– Basal segments of arista as figure 4B. Posterior scutellars greatly reduced (length <4× diameter of socket) or absent. T5–T6 as figure 4A...... species A