Revision of some Dexosarcophaga species described by R. Dodge (Diptera: Sarcophagidae)
Author
Mello-Patiu, Cátia Antunes De
text
Zootaxa
2002
122
1
16
journal article
10.5281/zenodo.156004
a2d680c9-a743-4a52-8fb8-9aca1f6c076c
11755326
156004
Dexosarcophaga itaqua
Dodge, 1966
(
Figs. 18
)
Dexosarcophaga itaqua
Dodge, 1966
: 681
.
Type
locality:
Brazil
, São Paulo, Itaquaquecetuba; male
holotype
, USNM.
Male
– Total length =
6 mm
.
Head
– Frontoorbital and parafacial plates gray with golden microtomentum, with a row of black setulae along eye margin; frontal vitta dark brown; frons 0.22 X head width; frontal row of 9 bristles; 1 reclinate frontoorbital bristle, proclinate absent; outer vertical bristle not differentiated from the postocular setae; gena and postgena gray with black setae; antenna dark brown [first flagellomere lost in the
holotype
], palpus dark brown with black apex.
FIGURES 18. –
Dexosarcophaga itaqua
Dodge
, male holotype; 1. syntergosternite 7+8, epandrium and cercus, lateral view; 2. apex of cercus, lateral view; 3. phallus and associated structures, lateral view; 4. gonopod; 5. paramere; 6. apex of phallus, lateral view; 7. apex of phallus without vesica, ventral view; 8. vesica, ventral view (bp= basiphallus; dp= distiphallus; go= gonopod; ju= juxta; ls= lateral stylus; ms= median stylus; pa= paramere; ve= vesica).
Thorax
– Gray, postpronotal lobe with golden microtomentum. Proepimeron bare; prosternum with sparse setae. Chaetotaxy: acrostichals 3 (weakly differentiated) + 1, dorsocentrals 3 + 4 (two posterior longer), intraalars 1 + 2, supraalars 2 + 3, postpronotals 3, postalars 2, notopleurals 4, scutellum with 2 marginals bristles intercalated by 2 weak ones, apical absent, discals 1, meropleurals 6, katepisternals 3 (in a line). Wing hyaline, R1 bare, R4+5 setulose in basal 2/3 to crossvein rm, costal spine not differentiated, third costal sector without ventral setulae. Legs black, mid femur apically with posteroventral ctenidium (67 spines), mid tibia with 1 median posterodorsal bristle, without ventral setae, hind tibia with 1 anteroventral median setae.
Abdomen
– Black with the usual pattern of silvery gray microtomentum; T1+2–3 without median marginal bristle, T4 with a row of marginal bristles; ST12 with long black hairlike setae.
Terminalia
– Syntergosternite 7+8, epandrium and cercus black with sparse gray microtomentum; epandrium with some differentiated dorsal bristles and syntergosternite 7+8 with 3 pairs of bristles in the row of marginals (
Fig. 1
); cercus moderately curved forwards in profile (
Figs. 12
); surstylus clavate with elongated apical setae (
Fig. 1
); gonopod with slightly enlarged base (
Figs. 3, 4
) and paramere gently curved and with a strong median bristle on anterior margin (
Figs. 3, 5
); phallus with a distinct basiphallus and a deep concavity between the apex of distiphallus and juxta (
Figs. 3, 6
); juxta narrow, protecting the apices of lateral styli (
Figs. 3, 6, 7
); lateral stylus long with simple base and dentate apex (
Figs. 6, 7
); median stylus represented by a small, double, rugose lobe between the apices of the lateral styli (
Figs. 6, 7
); vesica well sclerotized, bearing a pair of median apophyses laterally, bifurcated at apical portion with divergent arms (
Figs. 6, 8
).
Female
– unknown.
Material examined
–
Brazil
. São Paulo: Itaquaquecetuba,
1 male
(
holotype
),
V. 1929
, Townsend (
USNM
).
Distribution –
NEOTROPICAL –
Brazil
(São Paulo).
Remarks
– This species is very similar to
D. transita
and
D. lopesi
, but can be distinguished specifically by the presence of median apophyses and divergent broad apical arms in the vesica (
Fig.8
). The ST5 was not dissected due to the fragility of the
holotype
.