Taxonomic review of Ctenodontina Enderlein, 1914 with the revalidation of Catostola Hull, 1958 (Diptera: Asilidae: Asilinae) and description of a new species
Author
Camargo, Alexssandro
Author
Vieira, Rodrigo
Author
Rafael, José Albertino
text
Zootaxa
2023
2023-04-28
5276
1
71
journal article
10.11646/zootaxa.5276.1.1
590e0e3a-f3ea-4420-b976-b668987049e6
11755334
7907294
92300500-BB24-45B0-8ADD-977C3220A069
Ctenodontina mochica
Lamas, 1973
(
Figs 1–3
,
8
)
Ctenodontina mochica
Lamas, 1973: 276
, 277, figs. 4–7;
Artigas & Papavero, 1995: 36
(catalogue);
Vieira, 2012: 2
, fig. 1 (key);
Vieira, 2014: 314
(comments);
Vieira, Ayala-Landa & Rafael, 2017: 290
, figs. 1, 4 (key);
Sánchez & Camargo, 2021: 270
, 278, figs. 1–3 (female description, key).
Diagnosis.
Face silvery pruinose; mystacal macrosetae white (
Figs 1A
,
3A
); scape and pedicel dark yellow-brown; postpedicel and stylus brownish (
Figs 1A
,
3A
); thorax light yellow-brown; paramedian stripes, pre and postsutural spots and prescutellar spot dark; legs yellow brown with apex of last tarsomeres dark brown almost black (
Figs 1A
,
3A
); hind femur with a conspicuous sack-like swelling on distal forth ventrally, bearing a number of short white spines on its apex (
Fig. 1B–C
); an elongated concavity on proximal sixth of ventral surface of hind tibiae, opposite the femoral swelling (
Fig. 1B–C
); abdomen yellow brown with silvery and golden pruinosity (
Fig. 1A
); male terminalia reddish brown (
Fig. 1D–E
), S8 with a mid-posterior projection bilobed apically (
Fig. 2D
) and white setose apically (
Figs 1D–E
,
2A
); epandrium with rounded apex, in lateral view (
Fig. 1D
), with black and white setae (
Fig. 1D–E
); gonocoxite subtriangular and rounded apically in lateral view (
Fig. 2F–G
); hypandrium convex anteriorly and with a triangular indentation at posterior margin (
Fig. 2E
); female terminalia compressed laterally and shining reddish brown (
Fig. 3B–C
); T8 as long as T6 and T7 combined (
Fig. 3B–D
); spermatheca with two oval capsules (
Fig. 3E
). This diagnosis is based on the original description of
Lamas (1973)
and an additional description of the male terminalia and female by
Sánchez & Camargo (2021)
.
FIGURE 1.
Ctenodontina mochica
Lamas, 1973
, male.
A.
Habitus, lateral;
B.
Hind femora, anterior;
C.
Same, detail, anterior;
D.
Terminalia, lateral;
E.
Same, dorsal.
Abbreviations:
cerc: cercus; epand: epandrium; goncx: gonocoxite; gonst: gonostylus; hypd: hypandrium; st: sternite; subepand scl: subepandrial sclerite tg: tergite. Scale bar 1 mm.
FIGURE 2.
Ctenodontina mochica
Lamas, 1973
, male.
A.
Terminalia, lateral;
B.
Same, dorsal;
C.
Same, ventral;
D.
Sternite 8, ventral;
E.
Hypandrium, ventral;
F.
Gonopods, external, lateral;
G.
Same, internal, lateral;
H.
Phallus, lateral.
I.
Cercus and subepandrial sclerite, dorsal;
J.
Same, ventral.
Abbreviations:
cerc: cercus; ej apod: ejaculatory apodeme; goncx: gonocoxite; goncx apod: gonocoxal apodeme; gonst: gonostylus; hypd: hypandrium; ph: phallus; st: sternite; subepand scl: subepandrial sclerite; tg: tergite. Scale bar 1 mm.
FIGURE 3.
Ctenodontina mochica
Lamas, 1973
, female.
A.
Habitus, lateral;
B.
Terminalia, dorsal;
C.
Same, lateral;
D.
Same, lateral, dissected;
E.
Spermathecal capsule.
Abbreviations:
cerc: cercus; gen fk: genital fork; spe du: spermathecal duct; spmth: spermathecae; st: sternite; tg: tergite. Scale bar 1 mm.
Taxonomic discussion.
Lamas (1973)
described this species based on a single male specimen that seemed to him to be a newly hatched imago and that the colour-pattern could be somewhat darker in an older specimen. Recently
Sánchez & Camargo (2021)
described the female and provided an addendum to the description of the male terminalia of this species.
This species has a very conspicuous sack-like swelling on the distal fourth ventrally of the hind femora of males and the hind tibia is curved on the anterior third with a ventral hollow which seems to accommodate the femoral projection while in resting position (
Fig. 1A–C
). In addition, the S8 has a mid-posterior bilobed projection (Fig. D) which helps to separate it from
Ctenodontina pectinatipes
.
Distribution (
Fig. 8
).
Peru
(
Tumbes
,
Piura
and
La Libertad
).