Three new species of cockroach genus Hemithyrsocera Saussure, 1893 (Blattodea: Ectobiidae: Blattellinae) with redescriptions of two known species from China
Author
Wang, Zongqing
Author
Che, Yanli
text
Zootaxa
2017
4263
3
543
556
journal article
33071
10.11646/zootaxa.4263.3.6
892554a9-032d-4aee-a5d1-da1a46043dfa
1175-5326
573667
A08F6DE4-9A1D-4687-B84B-57E1E67C4720
2.
Hemithyrsocera banvaneuensis
(
Roth, 1985
)
, new record from China
Figs. 12–13
,
32–43
Parasymploce banvaneuensis
Roth, 1985
: 513
.
Hemithyrsocera banvaneuensis
,
Roth, 1995
: 962
.
Measurements
(mm).
Male
, overall length including tegmina: 17.9–18.5; pronotum length × width: 3.0–3.3×4.0– 4.3; tegmina length: 15.0–15.3.
Female
, overall length including tegmina: 16.1–17.0; pronotum length × width: 3.0–3.4×4.0–4.3; tegmina length: 14.0–14.9.
Body medium, brown or dark brown (
Fig. 12
). Vertex yellowish brown. Ocellar spot pale yellow. Face dark brown with one irregular yellowish brown macula between eyes and antennal sockets (
Fig. 13
). Maxillary palpomere brown (
Fig. 13
). Pronotum dark brown with yellowish brown maculae and stripe (
Fig. 12
,
34
). Tegmina brown with discoidal area yellow; hind wings hyaline and pale yellowish brown. Fore legs pale brown, middle legs yellowish brown and hind legs yellowish brown. Sterna yellowish brown with pale brown maculae on lateral borders (
Fig. 13
).
Vertex with interocular space distinctly narrower than the distance between antennal sockets (
Fig. 32
). Third and fourth maxillary palpomeres approximately same length, and both longer than the fifth (
Fig. 33
). Pronotum subelliptical, the middle of hind margin somewhat produced (
Fig. 34
). Hind wings with radius area narrow, R1 with 3 branches, posterior branches of R extended behind the anterior rami of radius and bifurcated at apical; M simple, Cu with two branches; apical triangle distinct. Front femur
Type
A2 or A3 (
Fig. 26
). Seventh abdominal tergum specialized but without setae; laterally on each side, a rounded lobe, covered with minute setae, directed posterior-lateral and with base robust (
Fig. 38
).
Supra-anal plate (
Fig. 39
) symmetrical in ventral view and nearly triangular, hind margin strongly convex in the middle, posterior region scattered with a few small spines; intercercal process absent; right and left paraprocts dissimilar and irregular, each with an acute spine arising from the base. Subgenital plate (
Fig. 40
) asymmetrical in dorsal view; right and left lateral margin concavely excavated and upturned, right style broad with dense brush of long setae, left style smaller with group of apical setae; hind margin produced and concavely excavated, and one large style-shaped process with group of apical setae arising from the posterior region.
Male genitalia. L3 (
Fig. 41
) long and slender, without preapical incision; L2vm (
Fig. 42
) long and slender, distinctly curved and basally tapering, twinned with a long sclerite by membrane; R2 with a large and irregular sclerite and R3 with 2 sclerites, one of which large and inversed Y-shaped, the other nearly C-shaped (
Fig. 43
).
FIGURES 32–43.
Hemithyrsocera banvaneuensis
(Roth, 1985)
, male:
32
head;
33
maxillary palp segments 3–5;
34
pronotum;
35
front femur;
36
tegmen;
37
hind wing;
38
seventh abdominal tergum;
39
supra-anal plate and paraprocts, ventral view;
40
subgenital plate, dorsal view;
41
hook-like phallomere (L3);
42
median phallomere (L2vm);
43
right phallomere (R2 and R3). Scale bars = 0.5 mm.
Materials
examined.
1♂
,
China
,
Yunnan
Prov.,
Xishuangbanna
,
Jinghong
,
Dadugang
, 22°22’190”N, 100°56’977″E,
29 May 2014
, leg.
Liu Hongguang
;
2 ♂
,
Yunnan
Prov.,
Xishuangbanna
,
Jinghong
,
Dadugang
,
1296m
, 22°22’190”N, 100°56’971”E,
28 May 2014
, leg.
Li Xinran
.
Remarks.
H. banvaneuensis
resembles
H. simulans
, but differs in the following characteristics: 1) hind margin of supra-anal plate strongly convex in the middle, posterior region nearly triangular with a few small spines, while in
H. simulans
, hind margin of supra-anal plate broadly convex in the middle, posterior region nearly hemispherical without spines; 2) subgenital plate with one large style-shaped process with apical setae, while in
H. simulans
, subgenital plate with 2 robust fingerlike processes, whose apices scattered with lots of small teeth; 3) L2vm distinctly curved and apically tapering, twinned with a long sclerite by membranous cuticle, while in
H. simulans
, L2vm slightly curved and apically round, associated with an irregular sclerite by membranous cuticle.
Distribution.
China
(
Yunnan
Prov.),
Laos
.