Revision of the Oriental genus Zavatilla Tsuneki (Hymenoptera, Mutillidae, Trogaspidiini), with descriptions of two new species
Author
Zhou, Hu-Ting
Author
Lelej, Arkady S.
Author
Williams, Kevin A.
Author
Liu, Jing-Xian
text
Zootaxa
2018
4418
2
101
120
journal article
30126
10.11646/zootaxa.4418.2.1
743a03e6-c13d-416f-b2fe-77434c2ab1c8
1175-5326
1242733
9A816F34-E39A-4AC2-88A1-3D320A6C2848
Genus
Zavatilla
Tsuneki, 1993
Zavatilla
Tsuneki, 1993
: 42
(as subgenus of
Smicromyrme
Thomson, 1870
);
Lelej 1995
: 2
; 1996: 8; 2005: 77;
Lelej & Brothers 2008
: 66
;
Brothers & Lelej 2017
: 97
.
Type species.
Mutilla gutrunae
Zavattari, 1913
, ♂, by original designation.
Gender.
Feminine.
Diagnosis.
MALE.
Punctures
of
upper head
and
mesosoma
coarse, confluent, interspaces linear. Clypeus conspicuously concave, medially
smooth
and
shiny with
transverse anterior sculptured
part
and slight but distinct anteromedian emargination. Mandible bidentate
apically
, with moderate subbasal tooth beneath (
Fig. 26
). Flagellomere 1 length 1.0–1.2 × width, 0.8–0.95 × flagellomere 2 length. Scape with one strong ventral carina. Mesoscutum with inconspicuous lateral ridges. Mesoscutellum evenly gibbous, with median carina on anterior inclination. Tegula long, protruding over scuto-scutellar suture. Prospurs simple. Metasomal tergum 2 with long lateral felt line, 3.8–4.0 × length of that on metasomal sternum 2. Metasomal tergum 7 with median longitudinal smooth shiny line that widens and is gibbous posterad. Sternum 8 (hypopygium) transversely depressed at base, without strong lateral
carinae
. Penis valves symmetrical. Volsella with cuspis equal to or slightly longer than penis valves (
Figs. 48, 51, 54
), with digitus and distinct paracuspis. Parapenis much shorter than penis valve, apically thin, acuminated.
FEMALE. Punctures
of
upper head
and
mesosoma
coarse, confluent, interspaces linear. Mandible bidentate, upper
tooth small
and
inconspicuous
. Dorsal transverse curved
carina of
clypeus with two tubercles that are larger or smaller than basomedian one. Flagellomere 1 length 1.33–1.45 × apical width, 1.54–1.6 × flagellomere 2 length, which is 0.81–0.83 × its width. Genal carina developed, ending anterad on hypostomal carina with tubercle.
Scutellar scale wide, 0.64–0.72 × distance between scutellar scale and inner border
of
posterior spiracle. Metasomal sternum 1
with
more or less emarginated longitudinal
carina
. Metasomal tergum 2 posteriorly with fringe of dense golden (whitish) or black decumbent setae. Metasomal tergum 3 with continuous band of dense golden or whitish decumbent setae. Pygidial plate wide, 0.6–0.7 × total width of metasomal tergum 6, rounded laterally, inconspicuously carinated laterally, finely granulate or longitudinally striate in basal half.
Sex association.
The female of the
type
species was originally described
as
Mutilla logei
Zavattari, 1913
,
as
suggested by
Lelej (2005)
.
Species included.
The genus includes four species (including two new ones described below):
Zavatilla gutrunae
(
Zavattari, 1913
)
, ♂, ♀ (China: Taiwan),
Z. flavotegulata
(
Chen, 1957
)
, ♂, ♀ (China: Zhejiang, Jiangxi, Fujian, Hunan, Guangdong, Hainan);
Z. xuzaifui
sp. nov.
♂, ♀ (China: Guangdong, Yunnan, Hainan; Vietnam);
Z. nepalensis
sp. nov.
, ♀ (Nepal). Three species are known from both sexes and
Z. nepalensis
from females only.
Distribution.
China
(
Zhejiang
,
Jiangxi
,
Fujian
,
Taiwan
,
Hunan
,
Guangdong
,
Yunnan
,
Hainan
),
Vietnam
,
Nepal
.
Remarks.
The male of the genus
Zavatilla
differs from other Oriental genera of tribe Trogaspidiini with symmetric penis valves (former tribe Petersenidiini) by having the following set of characters: scape with one ventral carina, volsella with paracuspis, flagellomeres short (flagellomere 1 length 1.0–1.2 × width, 0.8–0.95 × flagellomere 2 length), and metasomal sternum 2 with short lateral felt line. The female of the genus
Zavatilla
differs from other Oriental genera of tribe Trogaspidiini with propodeum not wider than pronotum (former tribe Petersenidiini) by having the following set of characters: transverse curved
carina of
clypeus with two sublateral tubercles, which can be smaller or larger than basal median clypeal tubercle; scutellar scale wide (0.64–0.72 × distance between scutellar scale and inner border of posterior spiracle); and pygidial plate wide (0.6–0.7 × total width of metasomal tergum 6), carinated laterally, finely granulated or longitudinally striated in basal part and mostly smooth in apical part.