Rediscovery, redescription, and reclassification of the rare and unusual fly Pyrgometopa penicillata Kertész (Diptera: Drosophilidae)
Author
Pirani, Gabriela
Laboratório de Evolução e Morfologia de Diptera, Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, 14040 - 901, Ribeirão Preto, SP, Brazil. E-mail: gabi. pirani 3107 @ gmail. com;
Author
Grimaldi, David A.
Curator, Division of Invertebrate Zoology; Professor, Gilder Graduate School, American Museum of Natural History, Central Park West at 79 th St, New York, NY. E-mail: grimaldi @ amnh. org.
text
Zootaxa
2019
2019-08-29
4661
3
445
456
journal article
25865
10.11646/zootaxa.4661.3.2
80f6b0f9-010f-4ae4-a944-fa8de3aa9a30
1175-5326
3446316
A166C53B-EC0F-427B-B6F4-1F39F92A3BD8
Genus
Stegana
Meigen
Meigen, 1830: 79;
Grimaldi (1990)
revised diagnosis;
Bachli et al. (2004)
European species;
Brake & Bachli (2008)
world catalogue. Type species:
S. nigra
Meigen, 1830
; Zetterstedt 1847: 2577 (=
S. furta
Linneaus, 1766
). AF, AU, NE, NT, OR, PA.
Pyrgometopa
Kertész, 1901: 419
. Type species:
P. penicillata
Kertész
. Monotypic.
New Synonym
.
NT
Diagnosis
: Wing held against side of body at rest (
Fig. 2
,
7
); apex bluntly pointed, veins R
4+5
and M
1
convergent, apices nearly touching, parallel at apex; C with row of minute, thorn-like spinules at apex (
Fig. 31–32
). Mid tarsomeres 1–4 with 2 ventral rows minute, overlapping, scale-like setulae (
Figs. 34
); hind tarsomeres 1–4 with one or two such rows (
Figs. 33, 34
). Hypandrial complex very elaborate; phallapodeme usually long, fused to phallus and postgonites. Phallic guide usually present.
Comments
:
Pyrgometopa
has all the above-mentioned characters, fitting entirely in the definition of
Stegana
. The latter genus is cosmopolitan and more diverse in the tropical regions of the world. Furthermore, we have some undescribed species with modifications on the frons and ocellar tubercle that also fit entirely within
Stegana
and it is probable that they all form a clade within the genus.