Physocephala goergeni, Stuke & Clements, 2019

Stuke, Jens-Hermann & Clements, David K., 2019, New conopid records from the Afrotropical Region (Diptera) - Part 3: Physocephalini, Bonn zoological Bulletin 68 (2), pp. 209-273 : 263-264

publication ID	https://doi.org/10.20363/BZB-2019.68.2.209
publication LSID	lsid:zoobank.org:pub:70A02482-0040-4136-ABB0-9C840A4D771A
persistent identifier	https://treatment.plazi.org/id/173187E9-DD26-FFFB-265A-4FCDFD1A6499
treatment provided by	Felipe
scientific name	Physocephala goergeni
status

Treatment

Key 8 – Identification of the Physocephala pubescens View in CoL species-group

1. Frons with numerous short setulae (e.g. Fig. 129 View Figs 126–130 ), or least laterally with some setulae additional to those on vertex; scutum and mediotergite with short setae only, shorter than diameter of a tibia (e.g. Fig. 148 View Figs 147–151 ). ................................................................................. 2

– Frons lacking setulae, setulae only present on vertex; scutum and mediotergite with long setae, longer than diameter of a tibia (e.g. Fig. 141 View Figs 138–142 )............................ 5

2. Tibiae lacking or with only very indistinct rows of black setulae (e.g. Fig. 127 View Figs 126–130 ); setulae on frons and face obvious and widely distributed, some of them inside the facial grooves and on the facial ridges (e.g. Figs 128, 129 View Figs 126–130 ).......................................................... 3

– Tibiae dorsally with distinct rows of black setulae (e.g. Fig. 140 View Figs 138–142 ); no setulae in facial grooves or on facial ridges ............................................................. 4

3. Very long, fine and dense setulae all over; long setulae on hind femur are especially obvious. Long setulae all over frons (longer than the diameter of hind tibia), and on abdomen. P. hirta ( Kröber, 1939) View in CoL

– Vestiture of fine setulae much less long and dense. Very few setulae anywhere longer than diameter of hind tibia........................ P. barbata ( Camras, 2001) View in CoL

4. Maximum length of apical aristomere about twice maximum length of projection of basal aristomere (Kröber 1936: 272, Fig 132 View Figs 131–133 ); setulae on frons indistinct and confined to outermost lateral margins of frons ( Fig. 131 View Figs 131–133 ); ♀ theca semi-circular, with an elongated field of dense black setae, the anterior and posterior margins of which are almost parallel ......... .................................... P. caenostylata Kröber, 1936 View in CoL

– Maximum length of apical aristomere less than twice maximum length of projection of basal aristomere ( Fig 149 View Figs 147–151 ); setulae on frons more widely distributed, usually not only confined to outermost lateral margins of frons ( Fig. 147 View Figs 147–151 ); ♀ theca narrow, triangular, with rounded central field of dense black setae ( Fig. 150 View Figs 147–151 ) ..................................... P. pubescens Brunetti, 1925 View in CoL

5. Tibiae lacking dorsal lines of black setulae; scutum orange-brown, with three black stripes; ♀ unknown [based on the original description only].................... .......................................... P. alinea ( Camras, 2001) View in CoL

– Tibiae with distinct lines of black setulae (e.g. Fig. 140 View Figs 138–142 ); scutum completely black centrally ................ 6

6. Basal aristomere projection shorter than apical aristomere ( Fig. 137 View Figs 134–137 ); setulae on vertex denser and therefore surface of vertex appears very roughened. Anterior part of vertex with a distinct area bare of setulae; setulae on vertex shorter, forming a level-topped pile in lateral view, the longest setulae on vertex being shorter than scape ( Fig. 136 View Figs 134–137 ); ♀ theca with crescentric apical field of long, blunt black setae, the longitudinal height of the field being distinctly greater than width ( Fig. 139 View Figs 138–142 )..................... ................................................ P. goergeni View in CoL spec. nov.

– Basal aristomere projection about same length as apical aristomere ( Fig. 145 View Figs 143–146 ); anterior part of vertex which lacks setulae indistinct and much smaller, and with a distinct depression ( Fig. 143 View Figs 143–146 ); setulae on vertex less dense and therefore surface of vertex appears less roughened ( Fig. 143 View Figs 143–146 ); setulae on vertex longer, becoming taller at rear in lateral view, the longest setulae on vertex about as long as scape; ♀ theca with a much broader field of black setae ( Fig. 146 View Figs 143–146 ) ................................. P. nigrita (Camras, 1962) View in CoL