Dioptoma Pascoe, 1860

Kundrata, Robin, Hoffmannova, Johana, Hinson, Kevin R., Keller, Oliver & Packova, Gabriela, 2022, Rhagophthalmidae Olivier, 1907 (Coleoptera, Elateroidea): described genera and species, current problems, and prospects for the bioluminescent and paedomorphic beetle lineage, ZooKeys 1126, pp. 55-130 : 55

Genus Dioptoma Pascoe, 1860

Fig. 1A, B

Dioptoma Pascoe, 1860: 118. Gender: feminine. Type species. Dioptoma adamsii Pascoe, 1860; by monotypy.

Diaptoma : Wijekoon et al. 2016: 70 [unavailable name, incorrect subsequent spelling not in prevailing usage].

Literature.

Pascoe (1860: 118): original description, drawings of male habitus, head, and antenna; Pascoe (1862: 323): comparison with Ochotyra ; Gerstaecker (1863: 409): remark; Gemminger (1869: 1647): catalogue; Gorham (1880: 66): remark; Gorham (1881: 63): remark; Olivier (1885: 372): remark; Gorham (1890: 550): catalogue; Gorham (1895: 309): redescription; Sharp (1899: 251): remark; Gorham (1903: 330): distributional note; Olivier (1907: 63): catalogue; Gahan (1908a: xlviii): remark; Gahan (1908b: 205): remark; Olivier (1910: 1): catalogue; Olivier (1912: 467): remark; Morice (1913: cxviii): introduction of a new species attributed to Gahan; Green (1913: 718): male and female morphology, bioluminescence, drawing of male habitus; McDermott (1914: 304): remark; Blair (1915a: 413): bioluminescence; Blair (1915b: 191): bioluminescence; Blair (1915c: 37): bioluminescence, morphology; Gravely (1915: 502): remark; Bugnion (1916: 83): remark; Pic (1916: 8): species description; Lucas (1920: 241): catalogue; Bugnion (1929: 4): remark; Brues (1941: 41): remark; Harvey (1952: 392): remark; Harvey (1955: 19): checklist, bioluminescence; Bess (1956: 25): remark; McDermott (1964: 50): revision; McDermott (1966: 122): catalogue; Mikšić and Mikšić (1966: 32): remark; Lloyd (1971: 101): remark, drawing of male habitus with distribution of luminous organs; Crowson (1972: 52): remark; Paulus (1975: 78): remark; Herring (1978: 471): checklist; Lloyd (1978: 252): remark, drawing of male habitus with distribution of luminous organs; Lloyd (1979: 302): remark; Ohba (1980: 14): remark; Crowson (1981: 314): remark, drawing of male habitus with distribution of luminous organs; Sivinski (1981: 168): remark; Lloyd (1983: 136): remark, bioluminescence; Hoffmann (1984: 230): remark; Herring (1987: 158): checklist; Cicero (1988: 148): remark; Viviani and Bechara (1993: 615): remark; Wittmer and Ohba (1994: 342): remark; Lawrence and Newton (1995: 857): catalogue, remark; Branham (1996: 18): remark; Ohba et al. (1996a: 17): remark; Viviani and Bechara (1997: 389): remark; Sivinski et al. (1998: 29): remark; Kawashima (2000: 131): remark; Branham and Wenzel (2001: 566): phylogeny; O’Keefe (2002: 182): remark; Branham and Wenzel (2003: 5): phylogeny; Li et al. (2008a: 259): remark; Li et al. (2008b: 495): review; Li and Liang (2008: 111): remark; Bogahawatta et al. (2009: 1): remark; Suzuki and Kobayashi (2009: 30): remark; Chen et al. (2010: 196): remark; Kawashima et al. (2010: 135): book chapter; Kundrata and Bocak (2011a: 57): remark; Oba et al. (2011: 777): remark; Wijekoon et al. (2016: 70): checklist [as Diaptoma [sic!]]; Liu et al. (2020: 46): remark. In addition to the aforementioned literature, this genus was included in PhD theses by Jeng (2008) and Roza (2022).

Remarks.

This genus currently contains two described species from Bangladesh, India, and Sri Lanka. Males are characterized by short antennae and deeply emarginate eyes, each with a smaller upper portion and a larger lower portion (Fig. 1B ). Regarding the gender of Dioptoma , Pascoe (1860) treated it as feminine and since the name is not a Greek noun, here we follow Pascoe’s decision.

Figures

Figure 1. Morphology of Rhagophthalmidae A habitus of Dioptoma adamsii from Sri Lanka (syntype of D. greeni), female, NHMUK, dorsal view B head of Dioptoma adamsii from Sri Lanka, male, NHMUK, frontal view C head and pronotum of Diplocladon hasseltii hasseltii from Indonesia, male, SDEI, dorsal view D habitus of Falsophrixothrix sp. from Indonesia, male, NHMUK, dorsal view E head and pronotum of Rhagophthalmus sp. from China, male, first author's collection, lateral view F habitus of Rhagophthalmus sp. from China, male, first author's collection, dorsal view. Scale bars: 5.0 mm (A, F); 1.0 mm (B, E); 2.0 mm (C, D).