Rhyacobates gongvo Tran & Yang, 2006
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publication ID |
https://doi.org/ 10.5852/ejt.2023.893.2285 |
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publication LSID |
lsid:zoobank.org:pub:D9DA4879-BC1D-4947-96E8-7D574DE334BA |
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DOI |
https://doi.org/10.5281/zenodo.10063667 |
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persistent identifier |
https://treatment.plazi.org/id/045E878D-FFF2-2914-3A35-FB0A72A90B4E |
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treatment provided by |
Plazi |
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scientific name |
Rhyacobates gongvo Tran & Yang, 2006 |
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Rhyacobates gongvo Tran & Yang, 2006 View in CoL
Figs 3K View Fig , 4H View Fig , 5J View Fig , 7A View Fig
Rhyacobates gongvo Tran & Yang, 2006: 16–19 View in CoL , figs 17–25, 28 (original description).
Rhyacobates gongvo View in CoL – Tran & Nguyen 2016: 513 View Cited Treatment , figs 41–42 (with remarks).
Diagnosis
Body length of apterous females 7.80–8.30, of apterous males 6.20–6.50. Color ( Figs 3K View Fig , 4H View Fig ): head yellow with black markings; pronotum: of female with a large subtriangular yellow marking, of male with subovate yellow spot; in apterous form, mesonotum with yellow median stripe; metanotum: of female completely black, without yellow markings, of male chiefly black, usually with very thin yellow median stripe. Female: abdomen elongate and straight ( Fig. 5J View Fig ); ventral length of pregenital abdomen about 0.4 times body length; posterior part of abdominal segment VII slightly depressed dorso-ventrally; connexival processes of segment VII long, straight, flat ( Fig. 3K View Fig ); sternum VII not totally enclosing genital segments, posterior margin straight, without process ( Fig. 3K View Fig ). Male: length of middle tibia ca 2.1 times length of hind tibia; pygophore simple; proctiger with angular lobes laterally ( Fig. 7A View Fig ); paramere slender, strongly curved at basal third, then tapering towards narrow apex.
Material examined
Type specimens
See Tran & Yang (2006).
Non-type specimens
VIETNAM • 1 ♁, 1 ♀ (apterous); Lào Cai Province, Sa Pa, Cát Cát, Ho stream (feeder stream of Mường Hoa stream); 22°19′32.9″ N, 103°49′52.9″ E; 27 Oct. 2020; A.D. Tran leg.; TAD20-23; ZVNU GoogleMaps • 1 ♀ (apterous); same collection data as for preceding; NKUM GoogleMaps .
GPS data of previous records: see Tran & Yang (2006), Tran & Nguyen (2016).
Distribution
Vietnam: Lào Cai ( Tran & Yang 2006; Tran & Nguyen 2016).
Comparative notes
This species is most similar to R. malaisei , which was discussed by Tran & Yang (2006: 18–19). Here, we provide further comparative notes between the two species. Rhyacobates gongvo and R. malaisei share the following characteristics of the female: (1) the metanotum is completely black, without yellow markings ( Fig. 3K, M View Fig ); (2) the abdomen is relatively straight and elongate; (3) the connexiva of abdominal segments I–VI are blackish, forming straight lines in dorsal view ( Fig. 3K, M View Fig ); (4) abdominal segment VII has a pair of pointed or angular lateral processes ( Figs 3K View Fig , 5J, L View Fig , 30G View Fig ); and (5) the posterior margin of sternum VII is truncate or slightly sunken, without a median process ( Fig. 30F View Fig ). The key differences between these two species are as follows: in the female of R. gongvo , the connexiva of abdominal segment VII do not meet each other over the dorsum ( Fig. 3K View Fig ), whereas in the female of R. malaisei , the connexiva of abdominal segment VII are more developed, curved mesad and meeting over the middle of the abdominal dorsum ( Figs 3M View Fig , 30D–E View Fig ). In the male of R. gongvo , the lateral lobes of the proctiger are angular ( Fig. 7A View Fig ), whereas in R. malaisei , each lateral lobe of the proctiger has an angular process directed ventrad ( Figs 7C View Fig , 30K View Fig ).
| NKUM |
Nankai University |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Phylum |
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Class |
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Order |
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SubOrder |
Heteroptera |
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InfraOrder |
Gerromorpha |
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SuperFamily |
Gerroidea |
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Family |
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SubFamily |
Ptilomerinae |
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Genus |
Rhyacobates gongvo Tran & Yang, 2006
| Leng, Zhaoqi, Tran, Anh Duc & Ye, Zhen 2023 |