New genus and species of Neotropical robber flies (Diptera, Asilidae, Asilinae)
Author
Artigas, Jorge N.
Author
Vieira, Rodrigo
text
Zootaxa
2014
3774
3
282
288
journal article
46281
10.11646/zootaxa.3774.3.5
72c58303-3689-46f0-906c-9ece69e683da
1175-5326
229649
7DC18AE1-A029-4876-9EEC-CC23C08EA647
Papaverellus aureocingulatus
Artigas & Vieira
sp. nov.
Diagnosis.
Similar in general appearance and vestiture to species of
Eicherax
Bigot, 1857
. Aedeagus long, slender, ending in 2 long prongs (
Fig. 13
). Spermathecae long, placed in between the 2 long arms of the genital fork; 2 spherical capsules with long capsular and expulsory ducts (
Fig. 18
); common duct long, thick, shorter than primary oviducts. Spermathecae (
Fig. 18
) similar to
Eraxasilus luctuosus
(Macquart, 1838)
(fig.
339 in
Papavero
et al.
, 2009).
Description.
Holotype
male. Head. Ocellar triangle dark, with few, short, black setae; postocular area with black macrosetae and golden setae on dorsal 1/2; scape dark brown; pedicel, postpedicel and stylus light brown; antennae long (
Fig. 4
); scape twice as long as pedicel; postpedicel 2.5 times as long as pedicel (
Fig. 4
); stylus with 2 elements (
Fig. 4
), almost 1.5 times as long as postpedicel (
Fig. 4
); apex of stylus bare (
Fig. 4
); 5 black postocular macrosetae on each side of head; frons golden tomentose laterally and brown tomentose on median region; face golden tomentose; face and frons in frontal view roughly triangular in shape (
Fig. 2
); face widening toward subcranial margin, in lateral view (
Fig. 2
); face in lateral view produced beyond eye margin over lower 1/2 (
Fig. 3
) with sparse black macrosetae dorsally, directed anteriorly, ventral 1/2 of facial swelling with yellow macrosetae directed anteriorly and ventrally, more dense towards oral margin. Palpus with long, black macrosetae; proboscis black, yellow setose.
Thorax. Four black antepronotal macrosetae; propleura and mesopleura tumid, golden, setae or macrosetae absent; mesonotum black with dark brown areas surrounded by silvery lines; metapleura tumid, silver; postpronotal lobe with short scattered, yellow setae; 2 notopleural macrosetae; 1 supra-alar macroseta; 2 postalar macrosetae; 3 pairs of postsutural dorsocentral macrosetae; anatergum asetose; katatergal macrosetae yellowish; setae on posterior meron + metanepisternum yellowish; scutellum tumid, silvery, without groove on posterior border; 2 black and long apical scutellar macrosetae; discal scutellar setae yellowish.
Wings (
Fig. 5
). Hyaline, veins brown; cell r1 close before wing margin; R4 without recurrent vein; R4 ending before tip of wing, and R5 after; bifurcation of veins R4 and R5 before apex of discal cell; cell m3 close; microtrichia on posterior wing margin arranged in a single plane.
Legs. Coxae gray, tumid, similar to pleura, fore and middle coxae with white setae dorsally. Femora shining black (
Fig. 1
); fore femora with golden setae ventrally, middle femora with strong, black macrosetae ventrally and anteriorly; hind femora with 2–3 black anterior macrosetae, 5 black macrosetae anteroventrally and 1 black preapical anterodorsal and 1 black preapical posterodorsal macroseta; tibiae yellow, except for a brown stripe anteriorly (
Fig. 1
); fore tibia with 2 black anterodorsally and 5 black setae posterodorsally; 3 long black macrosetae and yellow setae posteriorly; middle tibiae with 3 long setae posteriorly; hind tibiae with 2–3 black setae anterodorsally; tarsus light brown with black setae. Claws black, pulvilli yellow.
Abdomen. Silver with reflections dorsally, tumid laterally (
Fig. 1
). Segments setose laterally (
Fig. 1
).
Terminalia. Shiny black, black and yellow setose, rotated at a 45º angle with abdomen (
Figs. 1
,
7
). Epandrium flat ventrally, similar to the shape a split hoof of goat (
Fig. 7
). Epandrium globose basally, pointed apically (
Fig. 1
); basal 1/2 of gonocoxite elongate apically (
Figs. 11, 12
); each gonocoxite basally with patch of long, dense, golden setae, merging on and crossing hypandrium dorsally, forming conspicuous golden belt (
Figs. 7, 8, 11
); median region of gonocoxite with round, tumid protuberance, with sparse short black setae (
Figs. 7, 8, 12
); apical region of gonocoxite serrated (
Fig. 12
); hypandrium black, subtriangular, with sparse long setae laterally; apex with 3 small lobes (
Fig. 11
); aedeagus with 2 long, acute terminal tubes (
Fig. 13
); ejaculatory apodeme long and very narrow (
Fig. 13
).
Size.
Body length
15.5 mm
. Wing length
10 mm
.
Female.
Similar to male, except: ovipositor (
Figs. 14–17
) shining black, strongly compressed laterally, mainly on ventral part; median sclerite at posterior end of furca (remnant of tIX) absent; spermathecae (
Fig. 18
) situated between segment VIII and IX; capsules are usually seen on base of segment VII; genital fork with long arms, slightly more than 2.5 times the length of expulsory ducts (
Fig. 18
); 2 expulsory ducts; capsular ducts 1/3 the width of expulsory ducts and slightly longer; 2 spherical capsules, 1/4 of length of capsular ducts in diameters (
Fig. 18
).
Geographical records.
Brazil
(Pará state and Piauí state).
Etymology.
The specific name
aureocingulatus
refers to the basal region of the gonocoxite, with a patch of long, dense, golden setae, directed to the opposite side, crossing over the tip of the hypandrium, forming a conspicuous golden belt.
Material examined.
HOLOTYPE
:
BRAZIL
: Utinga, Belém, Pará, Nov.[ember].22.1963 / Oliveira & Wygodzinsky Coll. / [
01°25'29"S
,
48°26'86"W
] /
Papaverellus aureocingulatus
Artigas & Vieira
Holotype
(♂
MNRJ
).
FIGURES 1–5
.
Papaverellus aureocingulatus
Artigas & Vieira
gen. nov.
et sp. nov. Male. 1,
Habitus, lateral view;
2,
Head, frontal view;
3,
Head, lateral view;
4,
Antennae, lateral view;
5,
Wing; Male terminalia, lateral view. Abbreviations: pp: postpedicel; ped: pedicel; scp: scape; sty: stylus.
FIGURES 6–13
.
Papaverellus aureocingulatus
Artigas & Vieira
gen. nov.
et sp. nov. Male. 6,
Male terminalia, dorsal view;
7,
Male terminalia, ventral view;
8,
Male terminalia, ventral view;
9,
Male terminalia, lateral view;
10,
Inner margin of epandrium and subepandrial sclerite;
11,
Hypandrium, gonocoxite and gonostylus, ventral view;
12,
gonocoxite and gonostylus;
13,
Aedeagus and ejaculatory apodeme, lateral view. Abbreviations: aed: aedeagus; cerc: cercus; ej apod: ejaculatory apodeme; epand: epandrium; goncx: gonocoxite; gonst: gonostylus; hypd: hypandrium.
FIGURES 14–18
.
Papaverellus aureocingulatus
Artigas & Vieira
gen. nov.
et sp. nov. Female. 14,
Habitus, lateral view;
15,
Ovipositor, lateral view;
16,
Ovipositor, dorsal view;
17,
Ovipositor, ventral view;
18,
Genital fork and spermathecae. Abbreviations: ar: arms of genital fork; cap duct: capsular ducts; com duct: common duct; exp duct: expulsory ducts; cerc: cercus; f apod: furcal apodeme; spmth: spermathecae; stVIII: sternite VIII; tVII: tergite VII; tVIII: tergite VIII; tIX + X: tergite IX + X.
PARATYPES
.
Same label data as
holotype
, repositories as follows (1♀
MNRJ
); (
1♂
MNRJ
); (1? sex [terminalia lost]
INPA
); (
2♂
; 1♀
MZUC
–
UCCC
);
BRASIL
, Piauí, P.[arque] N.[acional] Sete Cidades,
19– 25.iv.
2012
,
193 m.
a.
04.09909ºS
, 4170952ºW {
03°55'39"S
41°42'42"W
}, Oliveira & Somavilla /
Papaverellus aureocingulatus
Artigas & Vieira
Paratype
(
2♂
; 1♀
INPA
); same data, except: (
1♂
MZUC
–
UCCC
);
BRASIL
, PI[auí], Piracuruca P.[arque] N.[acional] de Sete Cidades,
19–24. IV. 2012
, J.A. Rafael, F. Limeira–de–Oliveira cols. / Armadilha Malaise (1♀
MZUC
–
UCCC
).