First record of Rhabdoblattella (Blaberidae, Epilamprinae) from China with descriptions of two new species
Author
Wang, Zhenzhen
Author
Yang, Rong
Author
Wang, Zongqing
text
Zootaxa
2017
4294
3
381
388
journal article
32637
10.11646/zootaxa.4294.3.8
bc36d20e-1cfa-407c-b521-1cc0d981a615
1175-5326
832750
C1AB8206-EB8A-478D-8436-2D444EB68153
Rhabdoblattella disparis
sp. n.
(
Figs. 9–12
,
26–30
)
Description.
Measurements (mm).
Holotype
, male
, Overall length 20.2; head length × width 2.5 × 2.5; prOnOtum length × width 4.1 × 4.3; tegmina length × width 16.0 × 5.5.
Paratype
, female
, Overall length 22.7; head length × width 2.6 × 2.6; prOnOtum length × width 4.1 × 4.7; tegmina length × width 18.4 × 6.4.
BOdy yellOwish-brOwn. Eyes dark brOwn, Ocelli pale yellOwish. Antennae yellOw. Legs, thOrax and abdOmen sterna withOut spOts, light yellOw (
Fig.
11
). Tegmina subcOstal vein pale yellOwish, veins yellOwish. Cerci yellOwish.
Head expOsed, interOcular width slightly less than the space between antennal sOckets. Distance between eyes abOut 1.3 times Of Ocellus. Labrum with a black strip. Vertex and upper part Of frOns with small brOwn spOts (
Fig.
11
). PrOnOtum subpentagOnal, smOOth, impunctate, glOssy and cOvered with irregular large rufOus spOts (
Fig.
12
). Tegmina and wings cOmpletely develOped with rOunded apex. The median vein Of the tegmina presents dark spOts On its basal third and weakly brOwn spOts On its distal third. FOre femur
type
B2, with six large spines alOng anteriOr margin and twO apical spines (
Fig.
27
). First segment Of hind tarsus with twO raws Of spines alOng mOst part Of its length, lOnger than the Other segments cOmbined, the 2nd–4th segments spined beneath; claws symmetrical, simple, arOlia well develOped. AbdOminal terga 1st–7th specialized, each segment with a brOwn papilla prOcess near the middle (
Fig.
12
). Supra-anal plate triangular, shallOw caudal emarginatiOn at middle. ParaprOcts blaberid-type, asymmetrical. Sclerite L4U distinct (
Fig.
29
). Hypandrium with the right caudal side brOadly excavated, with a small dOrsally directed triangular tOOth near the middle, left hind margin cOncavity (ventral view). Styles similar, small, cylindrical, widely separated (
Fig.
29
). Cerci extended slightly beyOnd hind margin Of the Supra-anal plate.
Male genitalia. Right phallOmere is similar tO
R. hainanensis
sp. n.
, but R3 with branches Of abOut equal wide (
Fig.
28
); Sclerite L2D divided intO basal and apical parts, basal part rOd-like, mOderately widened cranially, apical part cap-shaped, withOut bristles (
Fig.
26
); Sclerite L3 with apex pOinted (
Fig.
30
).
Female. Very similar tO male, but a little mOre rObust (
Figs.
9–10
). AbdOminal sterna yellOw with small and fewer large brOwn dOts, large brOwn dOts alOng the hind margins Of the segments (
Fig.
10
). FOre femur with fOur large spines alOng anteriOr margin and twO apical spines.
Distribution.
China
(
Yunnan
).
Type
materials examined.
HOLOTYPE
:
male,
Yunnan
,
Yinjiang
,
Nabang
, 2012.
VII.11
, cOll. DOng
WANG
and
Lin DU
;
PARATYPE
:
1 female
, same data as the
hOlOtype
.
Etymology.
Latin wOrd
disparis
means “different”, referring tO abdOminal terga specialized and abdOmen sterna withOut spOts in male which differ it frOm the Other species Of genus
Rhabdoblattella
.
Discussion
.
R. disparis
sp. n.
is as large as
R. hainanensis
sp. n.
AlthOugh this species abdOminal terga 1st–7th specialized with a brOwn papilla prOcess near the middle Of each segment, which is ObviOusly different frOm Other species Of genus
Rhabdoblattella
, we included
R. disparis
sp. n.
in genus
Rhabdoblattella
by the fOllOwing characters: 1) male genitalia (apical part Of sclerite L2D cap-shaped and Sclerite L3 with apex pOinted) and hypandrium Of this species is similar tO
R. delicata
. 2)
R. disparis
sp. n.
mOrphOlOgical characteristics almOst in line with generic characters. TherefOre, accOrding tO abdOminal terga whether specialized Or nOt we subdivide this genus intO twO species grOups: the
R. cambodiensis
grOup and the
R. disparis
grOup.