Acupalpa dolichorhyncha, 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 : 40-41

Acupalpa dolichorhyncha sp. n. Fig. 8

Type material.

Holotype male, AUSTRALIA: Western Australia: 11 km N Cataby, 29.x.1987, M. E. Irwin & E. I. Schlinger, sweeping Leptospernum flowers [-30.733°, 115.533°] (MEI029507) (ANIC). Paratype. AUSTRALIA: Western Australia: female, same data as holotype (MEI029506) (ANIC).

Diagnosis.

Mouthparts elongate; frons profile rounded above antenna; antenna black; scutum glossy black; pleuron black; wing dark banded; abdominal segments 1-3 orange, rest black; abdominal velutum absent.

Description.

Body length= 7-10 mm. Head. Frons wider than ocellar tubercle (male), profile rounded above antenna, pubescence absent, glabrous, frontal vestiture glabrous or as minute setae, surface texture smooth; face shape broadly rounded, expansive, vestiture with dark or pale setae; gena with pale setae; parafacial glabrous; mouthparts elongate, projecting anteriorly; palpus brown-black, narrowly cylindrical; occiput overlain with sparse, silver-grey pubescence; antennal base flat, frons roughly level with eye in profile; antennal length approximately equal to head; scape black with sparse black setae, length shorter than flagellum; flagellum black, base of flagellum with short dark setae. Thorax. Scutum glossy black, overlain with faint stripes of grey pubescence; scutellum overlain with dense, matt-black pubescence; pleuron black, overlain with sparse silver-grey pubescence; wing markings faintly banded infuscate; haltere knob white; coxae black; femora brown to black; tibia brown or black; tarsi dark, basitarsi pale, dark distally, fore-basitarsus entirely white. Scutal chaetotaxy: np, 4; sa, 1; pa, 1; dc, 2; sc, 1. Abdomen. Segments 1-3 orange, remaining segments black, silver velutum absent; terminalia dark.

Comments.

Acupalpa dolichorhyncha sp. n. is a distinctive species with elongate mouthparts and orange-banded abdominal segments 1-3. This western species is morphologically similar to Acupalpa melanophaeos sp. n., also from Western Australia, and Acupalpa glossa sp. n. from Victoria.

Etymology.

The specific epithet is derived from Gr. dolichos, long; rhynchus, snout, referring to the elongate mouthparts.