Chrysopilus (Diptera: Rhagionidae) from Brazil: redescription of Chrysopilus fascipennis Bromley and description of eleven new species
Author
Santos, Charles Morphy D.
Author
Amorim, Dalton De Souza
text
Zootaxa
2007
1510
1
33
journal article
10.5281/zenodo.177231
85958124-71b7-40d6-92c3-391bad240ab0
1175-5326
177231
Chrysopilus fascipennis
Bromley
Figures 93–99
Chrysopilus fascipennis
Bromley
in
Curran, 1931
: 8
,
James, 1968
: 3
.
Material.
Holotype
ɗ,
GUIANA
, Kartabo, Bartica District,
06º 27’ N
,
58º 37’ W
, I-V/1921, Bromley col. (
AMNH
); additional specimens: 7 ɗ,
BRAZIL
, State of Pará, Santarém, Fazenda Taperinha,
02º 25’ N
54º 43’ W
, X-XI/1970, Exped. Perm. Amaz. cols. (
MZSP
); 1 ɗ, State of Amapá, Serra do Navio,
00º 53’ S
52º 00’ W
,
VIII/1959
, Bicelli col. (
MZSP
).
Diagnosis.
Wing membrane with three brownish stripes; R2+3 reaching C very close to R1; R4 with strong sinuosity; first flagellomere conical, shorter than pedicel; gonostylus strongly truncated distally, with a clump of setae; ejaculatory apodeme long, exceeding base of terminalia; gonocoxal apodeme short.
Male.
Body length, 8.0–
8.2 mm
. Wing length, 5.0–
5.5 mm
. General color dark brown. Eyes dark brown, facets homogenous, ocellar tubercle dark brown, ocelli grayish. Gena and clypeus brownish gray; clypeus bare (
Figure 96
). Antenna dark brown; scape bare, half the length of pedicel; pedicel almost cubic; first flagellomere conical, shorter than pedicel (
Figure 97
). Maxillary palpus long and slender (
Figure 94
); proboscis and labella dark brown. Occiput gray, with silvery iridescent setae.
Thorax (
Figure 93
) dark brown, with dark and golden setae. Halter bare, stem brown, tip yellow. Coxae and femora dark brown, with dark setae; tibiae brownish yellow. Wing membrane with three transverse brownish stripes (
Figure 95
); pterostigma indistinguishable amid stripes; R2+3 reaching C very close to R1, without distal sinuosity; proximal portion of R4 with strong concavity, without short appendage; R4 curved distally toward anterior margin; CuA2 and A1 fusing far from margin; crossvein m-m far from origin of M2.
Abdomen brown, yellow stripes on first three segments. Tergite of first abdominal segment with silvery setae forming an iridescent band. Gonocoxite and gonostylus brown; gonocoxite wider than long; gonostylus strongly truncated distally, with a clump of setae; aedeagus long; ejaculatory apodeme exceeding base of terminalia; gonocoxal apodeme short; lateral ejaculatory process slender, parallel to ejaculatory apodeme (
Figure 98
); meso-anterior incision of tergite IX short (
Figure 99
); cercus brown.
Female.
For general description and terminalia characters, see
Pimentel (1975)
.
Distribution.
Chrysopilus fascipennis
occurs in northern
Brazil
and
British Guiana
. The
holotype
was formerly considered to be collected in Fonteboa, State of Amazonas, but it was a misinterpretation made by
Curran (1931)
, since the
type
label brings clearly Kartabo, in the
British Guiana
, as the type-locality.