A faunistic study of genus Chasmogenus Sharp, 1882 of China (Coleoptera, Hydrophilidae)
Author
Jia, Fenglong
Author
Tang, Yu-dan
text
ZooKeys
2018
738
59
66
http://dx.doi.org/10.3897/zookeys.738.21711
journal article
http://dx.doi.org/10.3897/zookeys.738.21711
1313-2970-738-59
943CB4720D3A499A8D8C5970E042D227
943CB4720D3A499A8D8C5970E042D227
Chasmogenus abnormalis (Sharp, 1890)
Fig. 10
Philydrus abnormalis
Sharp, 1890: 351;
Hansen 1999
: 174 (complete synonymy);
Devi et al. 2016
: 296.
Material examined.
CHINA: Guangdong: 4 males, 6 females (SYSU), Guangdong, Zhuhai, Hengqing island, 10.VII.2006, Fenglong Jia leg. [transcribed from Chinese].
Macau
: 2 females (SYSU), Cotai Ecosystematic Reserve, part 1, 8.iv.2014, Weicai Xie et Jinwei Li leg. [transcribed from Chinese].
Remarks.
This species is close to
C. orbus
from which it can only be distinguished by the aedeagus. Parameres without or with small subapical tooth (
Devi et al. 2016
: figs 10-13), apex broadened inwards (Fig. 10). Median lobe gradually narrowing from apical quarter to apex, moderately constricted in apical fifth and strongly curved subapically, apex truncate (Fig. 10).
Distribution.
China (Guangdong, Macau); Cambodia, India, Indonesia, Japan, Sri Lanka, Thailand, Vietnam.
Key to the species of the
Chasmogenus
of China
| 8-9 |
2 |
| 10 |
C. abnormalis
(Sharp)
|
| 9 |
C. orbus
Watanabe
|
| 8 |
C. parorbus
sp. n.
|