Lepanus crenidens Gunter & Weir

Gunter, Nicole L. & Weir, Thomas A., 2019, Revision of Australian species of the dung beetle genus Lepanus (Coleoptera: Scarabaeidae: Scarabaeinae): key to species groups and description of 14 new species from the L. pygmaeus species group, Zootaxa 4564 (1), pp. 41-80: 60-62

publication ID

https://doi.org/10.11646/zootaxa.4564.1.2

publication LSID

lsid:zoobank.org:pub:27F70B5F-24DD-4C9E-BBA7-2B87476BD49C

persistent identifier

http://treatment.plazi.org/id/A8A729D8-0E16-4093-AB8D-E52D9DBEFAFF

taxon LSID

lsid:zoobank.org:act:A8A729D8-0E16-4093-AB8D-E52D9DBEFAFF

treatment provided by

Plazi

scientific name

Lepanus crenidens Gunter & Weir
status

new species

Lepanus crenidens Gunter & Weir   , new species

( Figs. 4K View FIGURE 4 , 5B View FIGURE 5 , 8B View FIGURE 8 , 10B View FIGURE 10 , 15 View FIGURE 15 )

Type series. Holotype: GoogleMaps   ♂ “ AUSTRALIA: N. QLD, Southedge via Mareeba, Jan 29 –31 1976, R. Storey   GoogleMaps , human dung trap ” [16°59'00"S, 145°19'00"E] / “ ANIC Database No. 25- 060381 ” / “ ANIC Image”/ “ Lepanus   CYP6 det. T.A.Weir 2018 ” / “T244823” in QM. Paratypes: Queensland: Southedge via Mareeba , [16°59'00"S, 145°19'00"E], ii.1977, R.I. Storey (25- 032632 x 1 ♂ in QDPC) GoogleMaps   ; Southedge via Mareeba , [16°59'00"S, 145°19'00"E], 30.iv.1976, R.I. Storey (25- 032633 x 1 ♀ in QDPC); 8 km N Mareeba, [16°55'28"S, 145°25'17"E], 5–6.ii.1997, H.F. & A.T. Howden ( CMNEN-00030389 in CMNC ♂) GoogleMaps   ; 8 km N Mareeba , [16°55'28"S, 145°25'17"E], 11–13.ii.1997, H.F. & A.T. Howden ( CMNEN-00030246 in CMNC ♀) GoogleMaps   ; 11 km NW Mareeba, Southedge Tobacco Research Station [16°58'43"S, 145°21'06"E], 28.i.1986, H.F. & A.T. Howden ( CMNEN-00030241-00030242 in CMNC 1 × ♂, 1 × ♀) GoogleMaps   ; Southedge Research Station , 12 km NW Mareeba, [16°58'43"S, 145°21'06"E], 23.i.1989, H.F. & A.T. Howden ( CMNEN-00030288-00030289 in CMNC 2 × ♂) GoogleMaps   ; Southedge Research Station , 12 km NW Mareeba, [16°58'43"S, 145°21'06"E], 1.i.1989, H.F. & A.T. Howden ( CMNEN-00030290-00030293 in CMNC 2 × ♂, 2 × ♀) GoogleMaps   ; Southedge Research Station, 12 km NW Mareeba, [16°58'43"S, 145°21'06"E], 4.i.1989, H.F. & A.T. Howden ( CMNEN-00030294-00030299 in ANIC 3 View Materials × ♂, 3 × ♀); Southedge Research Station, 12 km NW Mareeba , [16°58'43"S, 145°21'06"E], 7.i.1989, H.F. & A.T. Howden ( CMNEN-00030384 in CMNC ♂) GoogleMaps   ; Southedge Research Station , 12 km NW Mareeba, [16°58'43"S, 145°21'06"E], 31.i.1989, H.F. & A.T. Howden ( CMNEN-00030382-00030383 in CMNC 1 × ♂, 1 × ♀) GoogleMaps   ; Southedge Research Station, 12 km NW Mareeba, [16°58'43"S, 145°21'06"E], 3.ii.1989, H.F. & A.T. Howden ( CMNEN-00030243, CMNEN-00030385 in CMNC 1 × ♂, 1 × ♀); Southedge Research Station, 12 km NW Mareeba , [16°58'43"S, 145°21'06"E], 15.i.1989, H.F. & A.T. Howden ( CMNEN-00030381 in CMNC ♀) GoogleMaps   ; Southedge Research Station , 12 km NW Mareeba, [16°58'43"S, 145°21'06"E], 26–29.xii.1988, H.F. & A.T. Howden ( CMNEN-00030244, CMNEN-00030386-00030388 in CMNC 3 × ♂, 1 × ♀) GoogleMaps   ; 17–20 mi W Atherton [17°16'00"S, 145°12'00"E], 17.ii.1989, H.F. & A.T. Howden ( CMNEN-00030235 in CMNC ♀) GoogleMaps   ; 3 km W Batavia Downs , [12°39'36"S, 142°39'00"E], 16.ix–24.x.1992, P. Zborowski & T.A. Weir (25- 020182 x 1 in ANIC ♂) GoogleMaps   ; 3 km W Batavia Downs, [12°39'36"S, 142°39'00"E], 24.x–23.xi.1992, P. Zborowski & A. Calder (25- 020178 x 4 in ANIC 3 View Materials × ♂, 1 × ♀); 3 km W Batavia Downs, [12°39'36"S, 142°39'00"E], 23.viii– 16.ix.1992, P. Zborowski & L. Miller (25- 060383 x 1 in ANIC ♂) GoogleMaps   ; 3 km W Batavia Downs , [12°39'36"S, 142°39'00"E], 23.xi–11.xii.1992, P. Zborowski & W. Dressler (25-023712 x 1 in ANIC ♀) GoogleMaps   ; Batavia Downs, [12°39'36"S, 142°39'36"E], 22.vi–23.viii.1992, P. Zborowski & J.C. Cardale (25- 020180 x 2 in ANIC, 25- 0 60382 x 1 in ANIC 1 View Materials × ♂, 2 × ♀); 7 km S of Batavia Downs, [12°42'36"S, 142°42'00"E], 19.vi–22.vii.1992, P. Zborowski & E.S. Nielsen, (25- 020181 x 1 in ANIC ♀) GoogleMaps   ; 2 km N Rokeby, [13°39'00"S, 142°39'36"E], 15.vii–15.viii.1993, P. Zborowski & J. Balderson (25- 020179 x 3 in ANIC 3 View Materials × ♂) GoogleMaps   ; 18 km W Port Stewart , [14°07'00"S, 143°31'0"E], 25–28.vi.1976 ( T 50115 View Materials in QM ♀) GoogleMaps   ; Hartley's Creek, 2.5 km S, 16°40'28"S, 145°33'55"E, 14–18.v.1998 ( T66800 View Materials - T 66801 View Materials in QM 1 × ♂, 1 × ♀); Hartley's Creek , 2.5 km S, 16°40'28"S, 145°33'55"E, 3–11.ii.1999 ( T 76237 View Materials in QM ♂) GoogleMaps   ; Christmas Creek, 15 km W of Fairview, via Laura , [15°32'00"S, 144°09'00"E], 26–27.vi.1975, G.B. Monteith (25-015579 x 1 in also as T 50110 View Materials in QM ♂) GoogleMaps   ; Split Rock , [15°39'00"S, 144°31'00"E], 24.viii–21.ix.1992, P. Zborowski & L. Miller (25-023713 x 1 in ANIC ♀) GoogleMaps   ; Emerald Hill, Mareeba , 145°25'57"E, 16°58'19"S, 10–11.ii.2003, (T 116967 in QM ♂) GoogleMaps   ; Hann Tableland , 13 km WNW Mareeba, [16°55'00"S, 145°15'00"E], 5.xi–8.xii.1993, R.I. Storey & S. De Faveri (25- 032631 x 1 in QDPC ♂) GoogleMaps   ; Hann Tableland , 13 km WNW Mareeba, [16°55'00"S, 145°15'00"E], 9.xi–7.xii.1988, R.I. Storey & S. De Faveri (25- 060384 x 1 in QDPC ♂) GoogleMaps   ; Forty Mile Scrub , 18°06'52"S, 144 o 49'25"E, 1.x.1993 – 31.i.1994 ( T54658 View Materials T 54659 View Materials in QM 1 × ♂, 1 × ♀) GoogleMaps   .

Description. Bicoloured with head and pronotum dark brown and rest of the body light brown. Antennal clubs grey.

Total length: 2.2–2.7 mm. Holotype measurements: Total length 2.6 mm, elytral width 1.8 mm.

Male: Head: U-shaped between clypeal teeth, which are short and upturned. Margin slightly angulate at clypeogenal suture. Genal angle weakly defined. Basal carina present but interrupted medially. Dorsal part of eyes narrow in size, separated by interocular space approximately 25 times eye width (37: 1.5); eye canthus not dividing eye. Head 1.3 × wider than long (45:35).

Prothorax: Hypomeral surface finely reticulate with light punctation. Hypomeral striae about half the length of hypomeron. Pronotum 1.55 × wider than long (72:46).

Elytra: Surface smooth. Intervals with extremely fine setae extending backwards. Striae 1–4 double with very fine punctate edges; striae 5–7 appear singular. Elytra 1.15 × wider than long (86:75).

Legs: Apical tooth on protibiae with a slight notch approximately halfway on the inner edge. Front edge of protibiae deeply angulate; apical digit somewhat elongate and sharp; 2 teeth on outer edge. Inner edge of metatibiae almost straight. Metatarsi with 2nd tarsomere subequal to the 5th. Tarsal claws small and toothed.

Abdomen: Pygidium with an almost circular shaped depression containing a central tubercle that is a low and round or slightly elongate. Depression occupies half size of disc and extends under the angulate upper edge of pygidium. Abdominal surface slightly reticulate right across. Segment 6 punctate.

Pterothorax: Medial lobe of metaventrite finely punctate and broadly margined between mesocoxae. Lateral lobe of metaventrite smooth and punctate with setae. Meso-metaventral suture very slightly arched. Mesoventrite with slight notch anteriorly. Mesoventrite smooth. mesepimeron finely reticulate. Metanepisternum reticulate.

Female: Depression on pygidium larger than in male and as per the L. pygmaeus   species group

Etymology. Referring to the distinct notch on the apical tooth of the protibiae. Crena (Latin)   - notch; dens (Latin)- tooth.

Distribution. Lepanus crenidens   is known from 60 specimens and has only been recorded in open forest of northern Queensland of CYP and EIU bioregions ( Fig. 15A View FIGURE 15 ). BIOCLIM species distributions predict L. crenidens   may occur in the Queensland bioregions GUP, WET, BBN, and CMC, and in the Northern Territory bioregions ARC, CEA, GUC, and GUP; many of these regions remain under sampled and it is likely that L. crenidens   is more widespread than currently documented.

Comments. This species has previously been referred to as “ Lepanus   CYP6” under the informal nomenclature sensu Yeates et al. (2011). The majority of specimens were collected in flight intercept traps but also in malaise and dung baited pitfall traps.

QDPC

Queensland Primary Industries Insect Collection

ANIC

Australian National Insect Collection

QM

Queensland Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Scarabaeidae

Genus

Lepanus