Taxonomic history and review of the Förster genera of Platygastridae (Hymenoptera: Platygastroidea)
Author
Awad, Jessica
0F70AC80-70B4-4AED-BF6E-A191DF4F68BB
State Museum of Natural History Stuttgart, Rosenstein 1, 70191 Stuttgart, Germany. FDACS-DPI, 1911 SW 34 St, Gainesville FL 32608, USA.
jessica.awad@smns-bw.de
Author
Krogmann, Lars
CF157CC1-326C-4BF9-A262-CBF9FF179B6E
State Museum of Natural History Stuttgart, Rosenstein 1, 70191 Stuttgart, Germany. FDACS-DPI, 1911 SW 34 St, Gainesville FL 32608, USA.
lars.krogmann@smns-bw.de
Author
Talamas, Elijah
FDE12E40-BFCE-444A-AFAD-9A214A129345
elijah.talamas@fdacs.gov
text
European Journal of Taxonomy
2023
2023-06-15
875
1
1
46
http://dx.doi.org/10.5852/ejt.2023.875.2137
journal article
56102
10.5852/ejt.2023.875.2137
7d1475e5-5737-43a0-910d-c83a4cc6878c
2118-9773
8047251
6F308D64-2F63-454F-AF52-2F712A1DD2F5
Genus
Trichacis
Förster, 1856
Figs 22–23
Trichacis
Förster, 1856: 108
, 115.
Type
species
Trichacis pisis
(
Walker, 1835
)
by subsequent designation by
Ashmead 1893: 294
.
Trichasis
Förster, 1856
–
Thomson 1859: 78
. —
Vlug 1995: 84
(misspelling).
Remarks
Trichacis
is characterized by a tuft of setae on the mesoscutellum and a round or ovoid head (as opposed to the blocky head of
Isocybus
). Species of
Trichacis
typically have a smooth or finely sculptured frons with transverse striation or rugulae above the toruli. Upon its description, Förster included
T. didas
(
Walker,
1835
),
T. pisis
(
Walker, 1835
)
, and
T. remulus
(
Walker, 1835
)
.
Trichacis pisis
was designated as the type species by Ashmead (1983). The NHMW includes
one female
original exemplar of
T. tristis
, a species for which there is no known type material. We here designate this specimen (NHMW-HYM#0005319) as the
neotype
of
Platygaster tristis
Nees, 1834
.