Cycreon floricola floricola

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Arriaga-Varela E, Wong S, Kirejtshuk A, Fikáček M (2018) Review of the flower-inhabiting water scavenger beetle genus Cycreon (Coleoptera, Hydrophilidae), with descriptions of new species and comments on its biology. Deutsche Entomologische Zeitschrift 65(1) : 99–115, doi. Versioned wiki page: 2018-06-12, version 167789, https://species-id.net/w/index.php?title=Cycreon_floricola_floricola&oldid=167789 , contributors (alphabetical order): Pensoft Publishers.

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BibTeX:

@article{Arriaga-Varela2018DeutscheEntomologischeZeitschrift65,
author = {Arriaga-Varela, Emmanuel AND Wong, Sin Yeng AND Kirejtshuk, Alexander AND Fikáček, Martin},
journal = {Deutsche Entomologische Zeitschrift},
publisher = {Pensoft Publishers},
title = {Review of the flower-inhabiting water scavenger beetle genus Cycreon (Coleoptera, Hydrophilidae), with descriptions of new species and comments on its biology},
year = {2018},
volume = {65},
issue = {1},
pages = {99--115},
doi = {10.3897/dez.65.26261},
url = {https://dez.pensoft.net/articles.php?id=26261},
note = {Versioned wiki page: 2018-06-12, version 167789, https://species-id.net/w/index.php?title=Cycreon_floricola_floricola&oldid=167789 , contributors (alphabetical order): Pensoft Publishers.}

}

RIS/ Endnote:

TY - JOUR
T1 - Review of the flower-inhabiting water scavenger beetle genus Cycreon (Coleoptera, Hydrophilidae), with descriptions of new species and comments on its biology
A1 - Arriaga-Varela E
A1 - Wong S
A1 - Kirejtshuk A
A1 - Fikáček M
Y1 - 2018
JF - Deutsche Entomologische Zeitschrift
JA -
VL - 65
IS - 1
UR - http://dx.doi.org/10.3897/dez.65.26261
SP - 99
EP - 115
PB - Pensoft Publishers
M1 - Versioned wiki page: 2018-06-12, version 167789, https://species-id.net/w/index.php?title=Cycreon_floricola_floricola&oldid=167789 , contributors (alphabetical order): Pensoft Publishers.

M3 - doi:10.3897/dez.65.26261

Wikipedia/ Citizendium:

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| author = Arriaga-Varela E, Wong S, Kirejtshuk A, Fikáček M
| title = Review of the flower-inhabiting water scavenger beetle genus Cycreon (Coleoptera, Hydrophilidae), with descriptions of new species and comments on its biology
| journal = Deutsche Entomologische Zeitschrift
| year = 2018
| volume = 65
| issue = 1
| pages = 99--115
| pmid =
| publisher = Pensoft Publishers
| doi = 10.3897/dez.65.26261
| url = https://dez.pensoft.net/articles.php?id=26261
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}} Versioned wiki page: 2018-06-12, version 167789, https://species-id.net/w/index.php?title=Cycreon_floricola_floricola&oldid=167789 , contributors (alphabetical order): Pensoft Publishers.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Coleoptera
Familia: Hydrophilidae
Genus: Cycreon

Name

Cycreon floricola Arriaga-Varela & Wong & Kirejtshuk & Fikáček, 2018 ssp. n. – Wikispecies link – ZooBank link – Pensoft Profile

Type locality

Malaysia, Kelantan, Guala Musang prov., Kuala Koh district, Taman Negara, 700 m from the entrance, 96 m a.s.l., 4°52.333ʹN 102°26.872ʹE.

Type material

Holotype (male: ZIN): “MALAYSIA: Kelantan AR-4332 / Guala Musang prov., Kuala Koh / distr., Taman Negara, 700 m / from entrance, 4°52.333ʹN / 102°26.872ʹE, 96m, 11.i.2014 / Schismatoglottis sp. HY Chen”. Paratypes: MALAYSIA: Johor: Endau-Rompin N.P., NERC to Visitor Complex, Stream 1, 80 m, 2°25ʹ12.8 ʹ ʺN 103°15ʹ41.33ʺ E, flowering Kiewia ridleyi, 22.x.2008, Ooi Im Hin lgt. (AR-2602) (1: ZIN); Kota Tinggi, Hutan Simpan Panti, starting point of the trail to mount Panti, 14 m, 1°48.595ʹN 103°51.099ʹE, flowering Schismatoglottis, 4.xii.2013, Hoe Yin Chen lgt. (AR-4322) (21: ZIN, NMPC, IBTP); [same locality, except] 16 m, flowering Schismatoglottis, 4.xii.2013, Hoe Yin Chen lgt. (AR-4326) (11: ZIN); Kota Tinggi, Hutan Simpan Panti, starting point of the trail to mount Panti, 16 m, 01°48.565’N 103°51.104’E, flowering Schismatoglottis, 04.xii.2013, Hoe Yin Chen lgt. (AR-4328) (4: ZIN, NMPC); Kota Tinggi, Hutan Simpan Panti, Starting point of the trail to mount Panti, 16 m, 01°48.565’N 103°51.104’E, flowering Schismatoglottis, 13.xii.2013, Hoe Yin Chen lgt. (AR-4328) (6: ZIN, NMPC); Kelantan: Gua Musang, Kuala Koh, Taman Negara, 700 m away from the entrance gate (outside the park), 96 m, 4°52.333ʹN 102°26.872ʹE, flowering Schismatoglottis, 11.x.2014, Hoe Yin Chen lgt. (AR-4332) (237: ZIN, NMPC, IBTP, KMNH, EIHE, NHMW, BMNH, SRBC).

Diagnosis

This subspecies is very similar to Cycreon floricola borneanus ssp. n. with which it shares most of the external characters including genital morphology. Cycreon floricola floricola can be distinguished by the pronotal punctation consisting exclusively of the incomplete ring-like punctures. The dorsal coloration of the is slightly more contrasting in most specimens of C. floricola floricola than in representatives of C. f. borneanus ssp. n., with the pronotum darker compared to the elytra.

Description

Measurements. 2.4–3.2 mm long (length of holotype: 2.7 mm), 1.9–2.0× as long as wide, widest at basal fifth of elytra; weakly convex, 3.2–3.4× as long as high (height of holotype: 2.7 mm). Colouration. Pale yellowish-brown with dark-brown elytra (Fig. 1A–B).
Pronotum 2.2× wider than long; 1.6× wider at base than between anterior angles, with punctation dense and shallow, consisting of semicircular impressions (punctures) with a small setiferous puncture on posterior margin. Punctation approximately same in size and density all over pronotum.
Elytra widest at anterior fifth, 1.1–1.2× as long as wide, 2.9–3.0× as long as pronotum, 1.1× as wide as pronotum. Punctation on intervals composed of semicircular impressions with one setiferous puncture on posterior margin.

Distribution

The subspecies is known from two regions in Peninsular Malaysia, in provinces of Johor and Kelantan.

Biology

Many specimens of C. floricola floricola were collected inside of inflorescences of Schismatoglottis species and Kiewia ridleyi (Low et al. 2018[1]) (both Araceae).

Taxon Treatment

  • Arriaga-Varela, E; Wong, S; Kirejtshuk, A; Fikáček, M; 2018: Review of the flower-inhabiting water scavenger beetle genus Cycreon (Coleoptera, Hydrophilidae), with descriptions of new species and comments on its biology Deutsche Entomologische Zeitschrift, 65(1): 99-115. doi

Images

Figure 1. Habitus and morphology of Cycreon species. A–D – general habitus: A–B – C. floricola floricola ssp. n. (A – dorsal; B – lateral); C – C. floricola borneanus ssp. n., dorsal; D – C. adolescens sp. n., dorsal. E–O – morphology of C. floricola floricola ssp. n.: E – head and pronotum dorsally. F–K – mouthparts (F – mandible with unabraded apex; G – mandible with abraded apex; H – mandible, mesal view; I – labium; J – labrum; K – maxilla. L – metathoracic wing. M–O – tibiae and tarsi (M – prothoracic leg; N – mesothoracic leg; O – metathoracic leg).
Figure 1. Habitus and morphology of Cycreon species. A–D – general habitus: A–B – C. floricola floricola ssp. n. (A – dorsal; B – lateral); C – C. floricola borneanus ssp. n., dorsal; D – C. adolescens sp. n., dorsal. E–O – morphology of C. floricola floricola ssp. n.: E – head and pronotum dorsally. F–K – mouthparts (F – mandible with unabraded apex; G – mandible with abraded apex; H – mandible, mesal view; I – labium; J – labrum; K – maxilla. L – metathoracic wing. M–O – tibiae and tarsi (M – prothoracic leg; N – mesothoracic leg; O – metathoracic leg). 
Figure 2. External morphology of Cycreon floricola floricola ssp. n. A– head, ventral view; B – detail of male mouthparts in ventral view; C – prothorax in ventral view; D – detail of the antennal groove; E – meso- and metaventrite; F – prosternum and mesoventral elevation in ventrolateral view; G – abdominal ventrites. Abbreviations: abv1 – abdominal ventrite 1; ang – antennal grooves.
Figure 2. External morphology of Cycreon floricola floricola ssp. n. A– head, ventral view; B – detail of male mouthparts in ventral view; C – prothorax in ventral view; D – detail of the antennal groove; E – meso- and metaventrite; F – prosternum and mesoventral elevation in ventrolateral view; G – abdominal ventrites. Abbreviations: abv1 – abdominal ventrite 1; ang – antennal grooves. 
Figure 3. Male genitalia of Cycreon species (except C. sculpturatus for which male remains unknown). A–D – C. floricola floricola ssp. n., holotype; E–H – C. floricola borneanus ssp. n., holotype; I–J – C. adolescens sp. n., holotype; K–M – C. armandi Shatrovskiy, 2017, holotype. A, E, K – median lobe; B, F – median lobe in lateral view; C, G, L – tegmen; D, H, M – sternite 9; I – whole aedeagus; J – reconstructed shaped of the median lobe. K–M adapted from Shatrovskiy (2017)[2].
Figure 3. Male genitalia of Cycreon species (except C. sculpturatus for which male remains unknown). A–D – C. floricola floricola ssp. n., holotype; E–H – C. floricola borneanus ssp. n., holotype; I–J – C. adolescens sp. n., holotype; K–M – C. armandi Shatrovskiy, 2017, holotype. A, E, K – median lobe; B, F – median lobe in lateral view; C, G, L – tegmen; D, H, M – sternite 9; I – whole aedeagus; J – reconstructed shaped of the median lobe. K–M adapted from Shatrovskiy (2017)[2]. 
Figure 4. Surface sculptures of Cycreon species. A–C, J – C. adolescens sp. n., holotype; D–F – C. floricola borneanus ssp. n., paratype; G–I, K – C. floricola floricola ssp. n., paratype from the type locality. A, D, G – head punctation; B, E, H – pronotum punctation; C, F, I – elytral punctation; J–K – punctation of mentum.
Figure 4. Surface sculptures of Cycreon species. A–C, J – C. adolescens sp. n., holotype; D–F – C. floricola borneanus ssp. n., paratype; G–I, K – C. floricola floricola ssp. n., paratype from the type locality. A, D, G – head punctation; B, E, H – pronotum punctation; C, F, I – elytral punctation; J–K – punctation of mentum. 
Figure 5. Diagnostic characters of known Cycreon species. A–C – C. adolescens sp. n.; D–F – C. floricola borneanus ssp. n.; G–I – C. floricola floricola ssp. n.; K–L, S – C. armandi; O–R – C. sculpturatus. A, D, G, K, O – anterior margin of clypeus; B, E, H, L, P – mentum (superficial sculpture omitted in L and P); C, F, I, M, Q – pronotal punctation; R–S – metatibia. K, M–S redrawn from Shatrovskiy (2017)[2], L based on a photo provided by A. Shatrovskiy (pers. comm., 2017).
Figure 5. Diagnostic characters of known Cycreon species. A–C – C. adolescens sp. n.; D–F – C. floricola borneanus ssp. n.; G–I – C. floricola floricola ssp. n.; K–L, S – C. armandi; O–R – C. sculpturatus. A, D, G, K, O – anterior margin of clypeus; B, E, H, L, P – mentum (superficial sculpture omitted in L and P); C, F, I, M, Q – pronotal punctation; R–S – metatibia. K, M–S redrawn from Shatrovskiy (2017)[2], L based on a photo provided by A. Shatrovskiy (pers. comm., 2017). 

Other References

  1. ↑ Low S, Wong S, Boyce P (2018) Naming the chaos: generic redelimitation in Schismatoglottideae (Araceae). Webbia 72: 1–100. https://doi.org/10.1080/00837792.2017.1409940
  2. ↑ 2.0 2.1 Shatrovskiy A (2017) A new species of Cycreon d’Orchymont, 1919 from Singapore (Coleoptera: Hydrophilidae: Megasternini). Zootaxa 4217(3): 588–592. https://doi.org/10.11646/zootaxa.4317.3.11
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