Milichiidae

McAlpine, David, 2011, Observations on Antennal Morphology in Diptera, with Particular Reference to the Articular Surfaces between Segments 2 and 3 in the Cyclorrhapha, Records of the Australian Museum 63 (2), pp. 113-166 : 135-136

publication ID

https://doi.org/ 10.3853/j.0067-1975.63.2011.1585

persistent identifier

https://treatment.plazi.org/id/03C1878D-A63E-914D-FBE2-FCD05BF396AB

treatment provided by

Felipe

scientific name

Milichiidae
status

 

The Milichiidae View in CoL View at ENA

Examples used for this study include Stomosis sp. , Milichiella sp. , and, in less detail, Desmometopa sp. In some species separation of segments 2 and 3 without damage to the conus is difficult.

In Stomosis ( Figs 58–60 View Figures 58–60 ) antennal structure retains many of the basal schizophoran features seen in various taxa of Sciomyzoidea and Canacidae s.l. The rim of segment 2 is prominently developed, without differentiated lobes, but is rather broadly interrupted dorsally. The distal articular surface is concave all around the conus, but has no differentiated cup or cavity. The conus is 136 Records of the Australian Museum (2011) Vol. 63 located near the centre of the distal articular surface and is large and prominent, with oval, dorsolateral annular ridge and foramen, and ventral chin; the button is situated dorsolaterally to the annular ridge. Segment 3 is short and compact with moderately deep basal hollow into which the conus is inserted and no basal stem; the basal foramen is contained within the hollow; the pore of the sacculus is situated on the lateral surface a little before mid-length of the segment.

Milichiella ( Figs 61, 62 View Figures 61, 62 ) and Desmometopa differ mainly in having the rim uninterrupted dorsally and the conus more elongate and apically thickened, as in the Phoridae and Heteromyzidae-Sphaerocerinae; the annular ridge and associated foramen are subcircular, laterodistally located, and there is no chin.

The Milichiidae View in CoL are often considered to be the possible sister group to the Chloropidae View in CoL (e.g., Griffiths, 1972; Brake, 2000), but the few examples examined of the former show the distal articular surface of segment 2 to have no trace of cavity or cup and the conus to be rigidly sclerotized basally.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Milichiidae

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