Acupalpa yalgoo, Shaun L., Winterton, 2011

Shaun L., Winterton, 2011, Revision of the stiletto fly genera Acupalpa Kroeber and Pipinnipons Winterton (Diptera, Therevidae, Agapophytinae) using cybertaxonomic methods, with a key to Australasian genera, ZooKeys 95, pp. 29-79 : 53-54

Acupalpa yalgoo sp. n. Fig. 21

Type material.

Holotype male, AUSTRALIA: Western Australia, 28 km W Yalgoo, [-28.35°, 116.683°], 2.ix.1981, G. A. Holloway (MEI029508) (AM). Paratype. AUSTRALIA: Western Australia: male, Great Victoria Desert, Officer Basin, NE Streich Mound, 24-28.ix.1991, McMillan (MEI165193) (WAM).

Diagnosis.

Frons profile rounded above antenna; antenna black; scutum grey to black; pleuron black; wing dark banded; femora black; tibia yellow in basal half; abdomen black, segments 1-3 orange, silver velutum absent.

Description.

Body length= 9.0-10.0 mm. Head. Frons wider than ocellar tubercle, profile rounded above antenna, pubescence sparse silver-grey, frontal vestiture as small dark setae, surface texture as irregular longitudinal striations, face broadly rounded, expansive, with dark or pale setae; gena with pale setae; parafacial with short setae towards gena; mouthparts elongate; palpus brown-black, narrowly cylindrical; occiput overlain with sparse, silver-grey pubescence; antennal base flat; frons roughly level with eye in profile; antennal length shorter than head; scape black, length approximately equal to flagellum, scape with sparse black setae; flagellum black. Thorax. Scutum light grey to black, setal bases glossy black; scutellum overlain with dense, matt-black pubescence; pleuron black, overlain with sparse silver-grey pubescence; wing markings dark banded [discal band broad], dark yellow basally; haltere knob orange-yellow; coxae black; femora brown to black; tibia yellow in basal 1/2, dark in distal 1/2; tarsi black, basitarsi pale, dark distally, rest of tarsomeres dark. Scutal chaetotaxy: np, 4-5; sa, 1; pa, 1; dc, 3; sc, 2. Abdomen. Segments 1-3 orange, remaining segments black, silver velutum absent; terminalia dark.

Comments.

Acupalpa yalgoo sp. n. is a western species similar to Acupalpa semirufa and Acupalpa glossa sp. n., but differs from both in leg colouration and wing patterning.

Etymology.

The specific epithet is derived from the type locality of this species, near the Western Australian township of Yalgoo.