Copelatus insuetus Guignot, 1941

Ranarilalatiana, Tolotra, Raveloson Ravaomanarivo, Lala Harivelo & Bergsten, Johannes, 2019, Taxonomic revision of the genus Copelatus of Madagascar (Coleoptera, Dytiscidae, Copelatinae): the non- erichsonii group species, ZooKeys 869, pp. 19-90: 19

publication ID

http://dx.doi.org/10.3897/zookeys.869.33997

publication LSID

lsid:zoobank.org:pub:B7C88A64-C06E-4B67-A352-F2F9C8FB0D1C

persistent identifier

http://treatment.plazi.org/id/573F0C84-F705-55E7-A4F6-FC4974616368

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scientific name

Copelatus insuetus Guignot, 1941
status

 

Copelatus insuetus Guignot, 1941   Figs 6A View Figure 6 , 9A View Figure 9

Copelatus insuetus   Guignot, 1941: 39.

Type locality.

Madagascar, Perinet [= Analamazaotra NP].

Type information from original description.

Based on single male specimen (holotype). Madagascar, Perinet.

Type material studied.

Toamasina. Alaotra Mangoro: Moramanga: -HT♂ (GP) ( MNHN, "coll. Guignot"): Data in NHRS | JLKB | 000030227 // Madagascar | Perinet // Type [red label] // [male symbol] // Copelatus | insuetus | guign. Type //

Additional material studied.

Toamasina. Alaotra Mangoro: Moramanga, Ambatondrazaka, Andilamena: -2♀ ( MNHN, "coll. Guignot"): Data in NHRS | JLKB | 000030228-9 // Perinet // INSTITUT | SCIENTIFIQUE | MADAGASCAR // [female symbol] // -5♀ ( NMW): Data in NHRS | JLKB | 000030302-6 // Madagascar (Md 4/5) | Andasibe NP, Perinet | 1250 m Pfütze im Urwald | 5.12.2000, leg. W. Dolin // -1♂ (NMCP, "coll. Hájek”): Data in NHRS | JLKB | 000030312 // Madagascar 10.1.2007 | Andasibe NP. | Lokato-near Andasibe | Mracek Z. leg. // coll. Jiri HÁJEK | National Museum | Prague, Czech Republic // -1♀, 1♂ ( NMW): Data in NHRS | JLKB | 000030307-8 // E-Madagascar (10) | Ambatombe near Andilamena | 900 m asl. 17.01.1995 | G. Dunay & J. Janák coll. -1♀, 1♂ ( NMW): Data in NHRS | JLKB | 000030309-10 // E-Madagascar (11) Ampamoho | near Andilamena, 1200-1300 m. | asl. 18-20.01.1995 | G. Dunay & J. Janák coll. // -1♀ ( NMW): Data in NHRS | JLKB | 000030311 // Madagascar 18-20.1.1995 | 5km S Ampamoho | nr. Andilamena, 950-1000 m | Dunay & Janák (11) // -1♀ ( NHMUK): // BMNH-797884 // MAD: AMPA: Moramanga: Andasibe | Andasibe NP: Chanel| P61BI02: N: -18.935: E:48.418: 944 m | 04/I/2007 Leg. Isambert et al // DNA Voucher | BMNH <797884> | MSL294:A12 // -2♀ ( NHRS): // NHRS-JLKB | 000010692-3 // Madagascar: Tamatave: Alaotra Mangoro: | Analamazaotra RS; Bas fond, non-permanent | pond near trail to "lac rouge"MAD15-1 | 943 m, 18°56'26.7"S, 048°25'03.9"E, 16.III.2015 | Among vegetation and dead leaves in the pond | Leg.T. Ranarilalatiana & H.J. Randriamihaja // -1♀, 2♀ (Alc.) ( NHRS): // NHRS-JLKB | 000065745, 10783 (Alc.) // Madagascar: Toamasina: Alaotra | Mangoro: Analamazaotra RS: close to | park entrance: 18.93573S; 048.41741E | 930 m. 08.XI.2011 GB Nets and sieves: | stagnant pools in tributary to | Analamazaotra river; Field# MAD11-26 // Leg. J. Bergsten, R. | Bukontaite, T. | Ranarilalatiana & | H.J. Randriamihaja // -1♂ (GP), 1♀, 3 ex. (1♂, 2♀) (Alc.) ( NHRS): // NHRS-JLKB | 000010839, 65702, 10840 (Alc.) // MAD: TOAM: Alaotra Mangoro | Andasibe Mantadia NP, Analamazaotra | 250m E of park entrance: Mad14-18: | dried up river bed with stagnant pools: | 18.9357S 48.4174E: 930 m: 27.XI.2014 // Leg. J. Bergsten, R. | Bukontaite, S. Holmgren, | J.H. Randriamihaja | & T. Ranarilalatiana // -1♀ ( NHRS): // NHRS-JLKB | 000010841 // MAD: TOAM: Alaotra Mangoro | Andasibe Mantadia NP, Analamazaotra | pond: 100m E from Lac vert: Mad14-15: | shallow forest pool: 18.9385S 48.4219E: | 940 m: 27.XI.2014 // Leg. J. Bergsten, R. | Bukontaite, S. Holmgren, | J.H. Randriamihaja | & T. Ranarilalatiana // -1♂ (GP), 1♀, 1♀ (Alc.) ( NHRS): // NHRS-JLKB | 000065705, 65777, 10844(Alc.) // MAD: TOAM: Alaotra Mangoro | Andasibe Mantadia NP, Analamazaotra | 150 m E of park entrance: Mad14-14: | shallow partly dried out forest pond: | 18.9355S 48.4166E: 930 m: 27.XI.2014 // Leg. J. Bergsten, R. | Bukontaite, S. Holmgren, | J.H. Randriamihaja | & T. Ranarilalatiana // -1♂ (GP), 34 ex. (Alc.) ( NHRS, DEUA & PBZT/MBC): // NHRS-JLKB | 000010842, 10843(Alc.) // MAD: TOAM: Alaotra Mangoro | Andasibe Mantadia NP, | Mantadia: 12Km N of park | entrance: Mad14-83: | forest pond with some | vegetation: 18.7911S | 48.4259E: 960 m: 28.XI.2014 // Leg. J. Bergsten, R. | Bukontaite, S. Holmgren, | J.H. Randriamihaja | & T. Ranarilalatiana // -6♂ (GP), 4♀, 33 ex. (Alc.) ( NHRS, DEUA & PBZT/MBC): // NHRS-JLKB | 000010534-7, 10606-11, 10780(Alc.) // MAD: TOAM: Alaotra Mangoro: | Betsabora river by RN2 near | Antasmpanana village, 6Km W | of Moramanga: MAD14-81: river | with side pools: 18.9247S | 48.1828E: 900 m: 24.XI.2014 // Leg. J. Bergsten, | J.H. Randriamihaja | & T. Ranarilalatiana // -1♀ ( NHMUK): // BMNH-797895 // MAD: TOAM: Ambatondrazaka | Zahamena: Zahamena NP: Stream | P60BI15:N: -17.52: E:48.721: 1075 m| 31:XI:2006: Leg. Isambert et al // DNA Voucher | BMNH <797895> | MSL294:B11 // -4♂ (GP), 1♀ 11 ex. (Alc.) ( NHRS, DEUA & PBZT/MBC): // NHRS-JLKB | 000010817, 10872-4, 65700, 10880(Alc.) // Madagascar: Toamasina: Alaotra Mangoro: | Zahamena NP: Sect. Antanandava: | path towards Camp Cascade: S17.5166; | E048.7227; 1040 m. 07.III.2018; GB Nets, | white pan & sieves: Waterfilled goldigging | hole in forestswamp: Field# MAD18-80 | Leg. J. Bergsten, & T. Ranarilalatiana // -1♀ (Alc.) ( NHRS): // NHRS-JLKB | 000010885 // Madagascar: Toamasina: Ambatondrazaka | Zahamena NP: the way to Camp | Cascade: 19.III.2013, GB Nets & sieves: slow | stream, Leg. J.H. Randriamihaja & | T. Ranarialalatiana: Field# ZAH13-02 // -1♀ (Alc.) ( NHRS): // NHRS-JLKB | 000010881 // Madagascar: Toamasina: Alaotra Mangoro: | Zahamena NP: Sect. Antanandava: | Analamaitso forest: S17.5179; E048.7232; | 1050 m. 07.III.2018; GB Nets, white pan & | sieves: small foreststream: Field# MAD18-81 | Leg. J. Bergsten, & T. Ranarilalatiana // -3♀ (Alc.) ( NHRS): // NHRS-JLKB | 000010882 // Madagascar: Toamasina: Alaotra Mangoro: | Zahamena NP: Sect. Antanandava: | Ambavahala forest: S17.5300; E048.7161; | 1070 m. 08.III.2018; GB Nets, white pan & | sieves: larger shaded forestswamp: Field# MAD18-90 | Leg. J. Bergsten, & T. Ranarilalatiana // -1♂ (GP), 2♀ (Alc.) ( NHRS): // NHRS-JLKB | 000010875, 10883(Alc.) // Madagascar: Toamasina: Alaotra Mangoro: | Zahamena NP: Sect. Antanandava: | Pandanus Swamp: S17.5166; E048.7227; | 1040 m. 08.III.2018; GB Nets, white pan & | sieves: forestswamp: Field# MAD18-91 | Leg. J. Bergsten, & T. Ranarilalatiana -1♀ (Alc.) ( NHRS): // NHRS-JLKB | 000010884 // Madagascar: Toamasina: Alaotra Mangoro: | Zahamena NP: Sect. Antanandava: | Analamaitso forest: S17.5225; E048.7250; | 1090 m. 08.III.2018; GB Nets, white pan & | sieves: waterfilled golddigging hole in flat: Field# MAD18-92 | Leg. J. Bergsten, & T. Ranarilalatiana // -2♂ (GP), 3♀, 6♀ (Alc.), 6ex. (3♂, 3♀) (Alc.), ( NHRS, DEUA & PBZT/MBC): // NHRS-JLKB | 000010816, 10876-9, 10886(Alc.), 65753(Alc.) // Madagascar: Toamasina: Alaotra Mangoro: | Zahamena NP: Sect. Antanandava: 150 m | upstream to Camp Cascade: S17.5458; E048.7244; | 1270 m. 10-11.III.2018; GB Nets, white pan & | sieves: waterpool with dead leaves: Field# MAD18-109, | Leg. J. Bergsten, & T. Ranarilalatiana // Toamasina. Analanjirofo: Maroantsetra: -1♂, 1♀ ( MNHN, "coll. Legros"): Data in NHRS | JLKB | 000030314-5 // Maroantsetra | Vadon IV.50 // 1/6 //? insuetus | guign. // [These two specimens were seen in MNHN, but their identity, after the discovery of additional very similar species in the complex, was not confirmed. We therefore only tentatively refer them to this species.] Fianarantsoa. Vatovavy Fitovinany: Ifanadiana: -1♀ ( CAS): // CASENT-8131927 // Madagascar: Province | Fianarantsoa, Parc National | Ranomafana, radio tower | at forest edge, elev 1130 m | 19-26 February 2002 // 21°15.05'S, 47°24.43' | coll: M. Irwin, R. Harin’Hala | California Acad. of Sciences | malaise. Mixed tropical | forest MA-02-09B-17 // -1♂ (teneral) ( NMPC, "coll. Hájek”): Data in NHRS | JLKB | 000030313 // Madagascar 26-31.I.2007 | Ranomafana NP | Ranomafana vill. env. | Z. Mracek leg. // coll. Jiri HÁJEK | National Museum | Prague, Czech Republic // Fianarantsoa. Matsiatra Ambony: Lalangina: -1♀ ( CAS): // CASENT-5004000 // Madagascar, Fianarantsoa | Province, Ranomafana National | Park, Vohiparara village, 1160m | mixed tropical forest | 2-22 January 2001 | 21.23906S / 47.38487E | COL-DHK-2001-003 // D.H. & K.M. Kavanagh | R.L. Brett, E. Elsom, F. Vargas, | R. Ranaivosolo, E.F. Randrianirina, | N. Rasoamanana, T.J. | Ravelomanana and H.C. | Raveloson collectors // -4♂ ( CAS): // CASENT-5004056, 5004070-1, 5004075 // Madagascar, Fianarantsoa | Province, Ranomafana | National Park, Vohiparara | area, 1170m mixed tropical | forest 2-22 January 2001 | 21.22644S, 47.36979E, | Stop# DHK-01-004 // D.H. & K.M. Kavanagh | R.L. Brett, E. Elsom, F. | Vargas, R. Ranaivosolo, | E.F. Randrianirina, N. | Rasoamanana, T.J. | Ravelomanana and H.C. | Raveloson collectors // Antsiranana. Diana: Nosy-Be: -1♂(GP) ( MNHN): // Data in NHRS | JLKB | 000030230 // Nosy-Be | Sokobe [=Lokobe NP] | V. 57 Hoyt Coll // ♂ [male symbol] // Mahajanga. Boeny: Ambato-Boeny: -1♀ ( NHRS): // NHRS-JLKB | 000010694 (JB206) // Madagascar: Mahajanga: Boeny: | Ankarafantsika NP. S16.30341 | E046.81073, 74 m.a.o. 29.XI.2009 | 22W Black Light, Field# MAD09-07 | Leg. J. Bergsten, N. Jönsson, | T. Ranarilalatiana, H.J. Randriamihaja // -1♀ ( NHRS): // NHRS-JLKB | 000010781 (JB205) // Madagascar: Mahajanga: Boeny: | Ankarafantsika NP. S16.30350 | E046.81068, 87 m.a.o. 29.XI.2009 | Water Net, Field# MAD09-03 | Leg. J. Bergsten, N. Jönsson, | T. Ranarilalatiana, H.J. Randriamihaja //

Diagnosis.

Body shape elongate oval, elytra brown with basal testaceous band, with six discal and one submarginal stria ( Fig. 9A View Figure 9 ). Copelatus insuetus   can be distinguished from the following species based on the penis ventral outline in lateral view with a distinct “shoulder” ( Fig. 6A View Figure 6 ), an apex in left lateral view with a dorsal ridge crossing posterior dorsal margin and medial part longitudinally coarsely sulcate ventrolaterally in right lateral view ( Fig. 6A View Figure 6 ).

Description.

Body length 4.3-5.0 mm. Body shape elongate, weakly oval, some specimens appearing subparalell. Head rufotestaceous anteriorly and posteriorly but infuscated by two blotches inbetween the eyes. Blotches usually meet in middle and form an M-mark, but sometimes infuscation reduced to nearly absent. Pronotum usually with extensive medial infuscation leaving only lateral, anterolateral and posterolateral areas testaceous. Some specimens with less extensive medial infuscation ( Fig. 9A View Figure 9 ). Elytra brown with an irregular testaceous band at base. Testaceous band with longest projection posteriorly in second interval. All appendages testaceous.

Elytra with six clearly impressed discal and one submarginal stria. Fifth and sixth striae abbreviated anteriorly, and also first stria may be somewhat abbreviated. Submarginal stria starting between one third from the base and midway between base and apex. Head, pronotum, and elytra microreticulate and finely micropunctate. Posterolateral corners of pronotum with strioles that extend along posterior surface, reduced or absent medially.

Ventral side ferrugineous brown, except prothorax, epipleura, appendages, and gula of head which are testaceous. Area around metacoxal lines lighter (not all individuals) and also spots laterally on abdominal sternites II–VII and along some sternite margins are lighter. Metacoxa and abdominal sternites II–IV marked with strioles. Prosternal process short, broad, with blunt apex. Lateral parts of metaventrite broad. Metacoxal lines long, abbreviated only slightly before metaventral margin, diverging anteriorly.

Male: first three pro- and mesotarsomeres widened and ventrally equipped with suction cups; number of suction cups per segment for I–III: 7:4:4 for both pro- and mesotarsus. Protibia modified, narrow with a bisinuate angulate ventral margin at base, broadened distally. Pro- and mesotarsal claws unmodified. Penis in ventral view thin and simple, apical part slightly left-turned. Penis in lateral view angled after basal third forming a “shoulder”. Apex in left lateral view with a characteristic dorsal ridge crossing posterior dorsal margin ( Fig. 6A View Figure 6 ). Penis serrated with fine transverse ridges preapically on the left ventral ridge and halfway down the left side. Penis medially strongly longitudinally sulcate ventrolaterally in right lateral view ( Fig. 6A View Figure 6 ). Parameres as in Figure 6A View Figure 6 .

Female: anterior half of elytra finely striolated from second or third elytral interval to external margin. Degree of elytral striolation in females quite variable between specimens. These strioles are finer than the strioles on pronotum found in both sexes.

Distribution.

Endemic to Madagascar. Known with certainty from the eastern escarpment, Ranomafana NP in the south, Analamazaotra NP, and Mantadia NP in the central region, and Zahamena NP and Andilamena further north ( Fig. 12A View Figure 12 ). We have also seen older material including males from Paris museum from lowland Lokobe NP (island of Nosy Be) in NW and Maroantsetra in NE (not reconfirmed) that correspond to the same species. Finally, two females ( NHRS) from Ankarafantsika NP is likely this species.

Habitat and ecology.

We have collected this species in Analamazaotra NP in stagnant forest pools with vegetation or with plentiful of dead leaves. Also found in a sidepool next to a river in semi-open degraded area near Moramanga. The eastern escarpment localities range in altitude between 900-1300 m, but if the localities of Nosy Be and Maroantsetra are correct this species can also occur at lowland sea level altitudes. It seems to be most abundant in tropical eastern forests, but if the Ankarafantsika females belong to this species, then it can also occur in western deciduous forests.

Comments.

Eventual older records of C. insuetus   should be regarded with caution in light of the habitually very similar new species described below.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Dytiscidae

Genus

Copelatus