Gerax fuscum Brindle, 1974,

Girod, Christophe & Matzke, Danilo, 2020, Annotated checklist of the Dermaptera (Insecta) of French Guiana, Zoosystema 42 (4), pp. 57-76: 66

publication ID

http://doi.org/ 10.5252/zoosystema2020v42a4

publication LSID

lsid:zoobank.org:pub:urn:lsid:zoobank.org:pub:CEEF2677-1D01-4298-A0CF-3B05E1DEF92C

DOI

http://doi.org/10.5281/zenodo.3704046

persistent identifier

http://treatment.plazi.org/id/039B878E-FF8D-EB53-FE80-9E30FA37FB9E

treatment provided by

Felipe

scientific name

Gerax fuscum Brindle, 1974
status

 

Gerax fuscum Brindle, 1974 

( Fig. 7 BView FIG)

Gerax fuscum Brindle, 1974: 112  .

TYPE SPECIMEN. — El Barrioso, Rio Matu, Venezuela, Bolivar, 6.I.1972, leg. J. Salcedo, MIZA [type pictures studied]  .

MATERIAL EXAMINED. — 35 specimens ( Fig. 7 BView FIG)  .

French Guiana • 1 ♀; Saül; 13.XII.2011; SEAG com.; coll. CGIR  1 adult; Camopi ; Mont Saint-Marcel; 635 m a.s.l.; 2°23’3"N, 53°0’37"W; 21.IX.2014; SEAG com.; coll. CGIRGoogleMaps  1 adult; same locality; 26.IX.2014; SEAG com.; coll. CGIR  1 ♀; Montsinéry- Tonnégrande; Montagne des Chevaux ( Montagne Yéyé ), RN2 PK22; 100 m a.s.l.; 4°44’34.3”N, 52°25’53.51”W; 16.VII.2011; SEAG com.; coll. CGIRGoogleMaps  1♀; same locality; 14.VIII.2011; SEAG com.; coll. CGIR • 3 ♀; same locality; 18.IX.2011; SEAG com.; coll. CGIR  1 ♀; same locality; 8.X.2011; SEAG com.; coll. DMAT  1 ♀; same locality; 10.III.2012; SEAG com.; coll. CGIR  1♂; same locality; 4.V.2013; SEAG com.; MNHN  1 ♂; same locality; 8.VI.2013; SEAG com.; coll. CGIR  1 ♂; same locality; 24.VIII.2013; SEAG com.; coll. CGIR  1 adult; same locality; 7.IX.2013; SEAG com.; coll. YKAM  1 adult; same locality; 28.IX.2013; SEAG com.; coll. CGIR  1 adult; same locality; 26.X.2013; SEAG com.; coll. CGIR  1 adult; same locality; 10.XI.2013; SEAG com.; coll. CGIR  1 adult; same locality; 16.XI.2013; SEAG com.; coll. CGIR  1 adult; same locality; 30.XI.2013; SEAG com.; coll. DMAT  1 ♀; same locality; 7.XII.2013; SEAG com.; coll. CGIR  1 adult; same locality; 24.V.2014; SEAG com.; coll. CGIR  1 adult; same locality; 28.VI.2014; SEAG com.; coll. CGIR  2 ♂; same locality; 19.VII.2014; SEAG com.; coll. CGIR  2 adults; same locality; 26.VII.2014; SEAG com.; coll. CGIR  1 adult; same locality; 9.VIII.2014; SEAG com.; MNHN  1 adult; same locality; 21.VIII.2014; SEAG com.; coll. CGIR  1 adult; same locality; 30.VIII.2014; SEAG com.; coll. CGIR  1 ♀; same locality; 27.IX.2014; SEAG com.; coll. CGIR  2 adults; same locality; 18.X.2014; SEAG com.; coll. CGIR; coll. DMAT  1 ♂; same locality; 31.I.2015; SEAG com.; coll. CGIR  1 adult; same local- ity; 18.IV.2015; SEAG com.; coll. CGIR  1 adult; same locality; 25.IV.2015; SEAG com.; coll. CGIR  .

DISTRIBUTION. — Previously only known from type specimen, collected in Venezuela.

REMARKS

This species is difficult to identify although the presence of an arolium and the large eyes were diagnostic for the genus Gerax  . We have been able to compare our specimens with photographs of type specimens of Gerax fuscum Brindle, 1974  and Gerax lucidum Brindle, 1974  , also stored at MIZA. Both species were described on a single male specimen. According to our specimens, the differences stated in Brindle’s descriptions (1974) are scarce: concerning the colour of pronotum and wings, our specimens vary from pure yellow ( Gerax lucidum  ) to yellow suffused with brown ( Gerax fuscum  ); pending further investigations we refer all our specimens as Gerax fuscum  . It is likely that the two species are to be synonymized in the future.

MIZA

Venezuela, Maracay, Museuo del Instituto de Zoologia Agricola

SEAG

SEAG

CGIR

CGIR

DMAT

DMAT

MNHN

France, Paris, Museum National d'Histoire Naturelle

YKAM

YKAM

MIZA

Museo del Instituto de Zoologia Agricola Francisco Fernandez Yepez

MNHN

Museum National d'Histoire Naturelle

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Dermaptera

Family

Spongiphoridae

Genus

Gerax

Loc

Gerax fuscum Brindle, 1974

Girod, Christophe & Matzke, Danilo 2020
2020
Loc

Gerax fuscum

Brindle 1974: 112
1974