Corresponding author: Zongqing Wang (
Academic editor: Jes Rust
Three new species of
The genus
In the present paper, after checking the specimens deposited in the Insect Collection of Southwest University (SWU), 3 species new to science are described and illustrated and 2 known species based on types are redescribed.
Terminology used in this paper is mainly according to
Tegmina and wings fully developed or more or less reduced. Radius vein of hind wing unbranched or branched near the middle; cubitus vein straight to distinctly curved with 1-6 complete and 0-6 incomplete branches; apical triangle absent or present, small or large. Specialization on the male abdominal tergum varies considerably in position and shape or is completely unmodified. Supra-anal plate symmetrical, rarely asymmetrical. Subgenital plate weakly to strongly asymmetrical, rarely symmetrical, with various highly specialized styli. Anteroventral margin of front femur usually Type A3, rarely Type B3 or between Type A and B. Tarsal claws symmetrical, unspecialized.
It is proposed that
Oriental, Australian, African and Palaearctic Regions.
1 | The first abdominal tergum unmodified | 2 |
– | The first abdominal tergum modified | 3 |
2 | Pronotum with two black longitudinal, irregular maculae centrally, supra-anal plate linguiform |
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– | Pronotum with two small V- shaped brown spots centrally, supra-anal plate trapeziform |
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3 | Seventh abdominal tergum modified with a pair of large depressions where some setae are situated | |
– | Seventh abdominal tergum unmodified | 4 |
4 | Pronotum pitch black, lateral board brown | |
– | Pronotum yellowish brown with shallow U-shaped dark brown macula near base |
Length, male,pronotum: length × width: 3.2 × 3.8mm, tegmen: 15mm, overall length: 18mm. Body brown (
Vertex with interocular width slightly less than ocellus width, distinctly narrower than distance between antennal sockets. Fourth and fifth maxillary palpomus of same length, both distinctly shorter than third (
One male (holotype), China: Fujian Prov., Mt. Wuyishan, 10 July 1982, coll. Feng Xia; one male (paratype), China: Hainan Prov., Mt. Jianfengling, Tianchi, 21 March 1983, coll. Shaoying Liang; one male, China: Hainan Prov., Mt. Jianfeng, 12 March 1982, coll. Maobin Gu; four males, China: Hainan Prov., Mt. Jianfengling, 25 March 1985, coll. Zhiqing Chen.
China (Fujian, Hainan).
Length, male,pronotum: length × width: 4.0 × 5.0mm, tegmen: 19.0mm, overall length: 19.5–20.0mm. Body brown (
Vertex with interocular width slightly narrower than ocellus width, distinctly less than distance between antennal sockets. Fourth and fifth maxillary palpomus about same length, both distinctly shorter than the third (
Female similar to male. Supra-anal plate triangular, subgenital plate broad and round.
One male (holotype), China: Xizang Prov., 23 November 1983, coll. Yinheng Han; one female (paratype), same data as holotype; one male, China: Xizang Prov., Beibeng, 13 December 1977, coll. Jianshe Wu.
China (Xizang).
Length, male, pronotum: length × width: 3.0 × 4.0mm, tegmen: 13.0mm, overall length (including tegmen): 15.5mm. Body yellowish brown (
Vertex with interocular space slightly less than ocellus width and distinctly narrower than distance between antennal sockets. Third and fifth maxillary palpomus about same length, both distinctly longer than the fourth (
The species is similar to
The specific epithet “sphaericus” is derived from Latin, which refers to the left style being nearly spherical (dissimilar from the right style).
Length, male, pronotum: length × width: 3.5 × 4.0mm; tegmen 13.0mm; overall length including tegmen 14.5–16.5 mm. Body dark brown (
Vertex with interocular space distinctly wider than distance between antennal sockets, and ocellus width slightly less than distance between antennal sockets. Third and fourth maxillary palpomus about same length, both distinctly longer than the fifth. Tegmen with apical posterior branch behind radius vein, and the branch bifurcated, one of the second division further branched (
Female is similar to male; supra-anal plate symmetrical and trapeziform; subgenital plate simple and hind margin round.
The new species superficially resembles
Based on type of vein, the unmodified seventh tergum and symmetrical supra-anal plate, this species should be placed in
The Latin word “paramarginata” refers to the superficial resemblance of this species to
Length, male, pronotum: length × width: 5.5 × 6.0mm, tegmen 18.5–19.0mm; overall length (including tegmen) 24.0mm. Body yellowish brown (
Vertex with interocular space wider than distance between antennal sockets, and ocellus width about same as distance between antennal sockets. Third and fourth maxillary palpomus about same length, both distinctly longer than the fifth. Pronotum nearly trapezoid with shallow U-shaped macula near base, and hind margin distinctly curved (
Female is similar to male. Supra-anal plate symmetrical, triangular; subgenital plate broad, hind margin slightly arced, near lateral sides concaved.
This species resembles
The specific name is derived from the Latin adjective “evidens”, referring to the pronotum with an evident shallow U-shaped macula.
The small order –
Traditional sweep at ground litter by day well known by most of cockroach researchers, few collectors can search for cockroaches at night with the aid of highlight torches or cap-lamp, and fewer has a wide knowledge that cockroaches also live on the trees. To everyone’s surprise,
Adult cockroaches usually have two sets of wings.The tegmina are somewhat sclerotized; while the hindwings are membranous, and generally wider than tegmina. It is generally believed that cross veins play an important role in supporting and reinforcement of the hindwings. Cross veins are normally present throughout most of the wings of cockroaches, and it is only in certain of the more specialized forms such as the
We are sincerely grateful to Prof. J. R. Schrock (Department of Biological Sciences, Emporia State University, USA) for revising the manuscript. This study is supported by the Natural Sciences Foundation of Project of CQ CSTC (2010BB5140), the National Natural Sciences Foundation of China (30900146, 31093430) and also partly by the Fundamental ResearchFunds for the Central Universities (XDJK2012B025, XDJK2013B013).