Onthophagus crinitus

Kohlmann, Bert & Solís, Ángel, 2025, A review of the species groups of the Western Hemisphere Onthophagus Latreille (Coleoptera: Scarabaeidae: Scarabaeinae) using COI barcoding and gene trees, Zootaxa 5604 (4), pp. 401-447 : 425

publication ID	https://doi.org/10.11646/zootaxa.5604.4.1
publication LSID	lsid:zoobank.org:pub:6A95109D-6F33-4DE7-9D47-6A722DD26918
DOI	https://doi.org/10.5281/zenodo.15225826
persistent identifier	https://treatment.plazi.org/id/03AA2362-147B-FF8E-FF28-AEB8FE9CAC02
treatment provided by	Plazi
scientific name	Onthophagus crinitus
status

Treatment

Onthophagus crinitus View in CoL species group*.

This group is diagnosed by the male having no clypeal horn and with two curved horns at the vertex ( Fig. 5.6 View FIG ); male protibia apex with a tuft of long setae ( Fig. 1.56 View FIG ); metafemur long and slender, bicolored, dark brown at apices and light brown at the center ( Fig. 2.56 View FIG ); long dorsal pubescence.

Based on external morphology and genitalia, Rossini et al. (2018a) proposed that O. crinitus Harold is related to the O. gazellinus species group. The present mtDNA barcode study ( Figs. 1–2 View FIG View FIG ) and the gene tree analyses ( Figs. 8–9 View FIG View FIG ) weakly support this genital morphology-based proposal (clade node value of 9). Boucomont (1932), in his Onthophagus species groups study, established a “6 e Groupe” composed of O. crinitus and O. lebasi Boucomont. According to him, this group is characterized by setose species with long pubescence and the male having long and slender protibiae. Subsequently, Zunino & Halffter (1997) considered O. lebasi a member of the O. landolti species group. The maximum-likelihood analyses ( Figs. 8–9 View FIG View FIG ) suggest that O. lebasi represents an indepent clade with a weak relation to Eastern Hemispheric species. The O. crinitus species group is distributed from Mexico to Colombia.

References

Figures

FIG. 1. Neighbor-joining tree for the Western Hemisphere Onthophagus species, based on K2P genetic distances comparisons between COI-5P mitochondrial barcoding sequences. Figs. 23–25 belong to the O. eulophus species group. Figs. 44 and 63 are not assigned to any species group. The male protibiae of the following species are depicted: 1, O. acuminatus; 2, O. batesi; 3, O. incensus; 4, O. nitidor; 5, O. stockwelli; 6, O. striatulus striatulus; 7, O. tristis; 8, O. basicarinatus; 9, O. hircus; 10, O. marginicollis; 11, O. nyctopus; 12, O. onorei; 13, O. osculati; 14, O. ptox; 15, O. ranunculus; 16, O. atriglabrus; 17, O. genuinus; 18, O. rostratus; 19, O. sharpi; 20, O. tapirus; 21, O. villanuevai; 22, O. violetae; 23, O. anewtoni; 24, O. arnetti; 25, O. browni; 26, O. championi; 27, O. guatemalensis; 28, O. mexicanus; 29, O. cartwrighti; 30, O. velutinus; 31, O. alluvius; 32, O. altivagans; 33, O. anthracinus; 34, O. brachypterus; 35, O. chryses; 36, O. landolti; 37, O. lecontei; 38, O. schaefferi; 39, O. concinnus; 40, O. cynomysi; 41, O. hecate hecate; 42, O. medorensis; 43, O. orpheus orpheus; 44, O. polyphemi sparsisetosus; 45, O. chevrolati; 46, O. cyanellus, 47, O. hippopotamus; 48, O. oaxacanus; 49, O. reyesi; 50, O. salvadorensis; 51, O. sanpabloetlorum; 52, O. skelleyi; 53, O. subtropicus; 54, O. totonicapanus; 55, O. vespertilio; 56, O. crinitus; 57, O. gazellinus; 58, O. onthochromus; 59, O. aciculatulus; 60, O. coscineus; 61, O. hoepfneri; 62, O. igualensis; 63, O. lebasi; 64, O. pennsylvanicus; 65, O. subanaeus; 66, tuberculifrons; 67, O. barreti; 68, O.breviconus; 69, O. contrapositus; 70, O. dicranius; 71, O. dorsipilulus; 72, O. humboldti; 73, O. kohlmanni; 74, O. micropterus; 75, O. neomirabilis; 76, O. orphnoides; 77, O. petenensis; 78, O. subcancer; 79, O. andersoni; 80, O. belorhinus; 81, O. grataehelenae; 82, O. limonensis; 83, O. maya; 84, O. praecellens; 85, O. propraecellens; 86, O. rhinolophus; 87, O. rhinophyllus; 88, undescribed species of Onthophagus; 89, O. viridivinosus; 90, O. xanthomerus. See Table 2 for an explanation of the specimen codes. See Table 7 for the author names of the species listed.

FIG. 2. A summarized neighbor-joining tree for Western Hemisphere Onthophagus species, based on K2P genetic distances comparisons between COI-5P mitochondrial barcoding sequences. Figs. 23–25 belong to the O. eulophus species group. Figs. 44 and 63 are not assigned to any group. The male metafemora of the following species are depicted: 1, O. acuminatus; 2, O. batesi; 3, O. incensus; 4, O. nitidor; 5, O. stockwelli; 6, O. striatulus striatulus; 7, O. tristis; 8, O. basicarinatus; 9, O. hircus; 10, O. marginicollis; 11, O. nyctopus; 12, O. onorei; 13, O. osculati; 14, O. ptox; 15, O. ranunculus; 16, O. atriglabrus; 17, O. genuinus; 18, O. rostratus; 19, O. sharpi; 20, O. tapirus; 21, O. villanuevai; 22, O. violetae; 23, O. anewtoni; 24, O. arnetti; 25, O. browni; 26, O. championi; 27, O. guatemalensis; 28, O. mexicanus; 29, O. cartwrighti; 30, O. velutinus; 31, O. alluvius; 32, O. altivagans; 33, O. anthracinus; 34, O. brachypterus; 35, O. chryses; 36, O. landolti; 37, O. lecontei; 38, O. schaefferi; 39, O. concinnus; 40, O. cynomysi; 41, O. hecate hecate; 42, O. medorensis; 43, O. orpheus orpheus; 44, O. polyphemi sparsisetosus; 45, O. chevrolati; 46, O. cyanellus, 47, O. hippopotamus; 48, O. oaxacanus; 49, O. reyesi; 50, O. salvadorensis; 51, O. sanpabloetlorum; 52, O. skelleyi; 53, O. subtropicus; 54, O. totonicapanus; 55, O. vespertilio; 56, O. crinitus; 57, O. gazellinus; 58, O. onthochromus; 59, O. aciculatulus; 60, O. coscineus; 61, O. hoepfneri; 62, O. igualensis; 63, O. lebasi; 64, O. pennsylvanicus; 65, O. subanaeus; 66, tuberculifrons; 67, O. barreti; 68, O.breviconus; 69, O. contrapositus; 70, O. dicranius; 71, O. dorsipilulus; 72, O. humboldti; 73, O. kohlmanni; 74, O. micropterus; 75, O. neomirabilis; 76, O. orphnoides; 77, O. petenensis; 78, O. subcancer; 79, O. andersoni; 80, O. belorhinus; 81, O. grataehelenae; 82, O. limonensis; 83, O. maya; 84, O. praecellens; 85, O. propraecellens; 86, O. rhinolophus; 87, O. rhinophyllus; 88, undescribed species of Onthophagus; 89, O. viridivinosus; 90, O. xanthomerus. See Table 2 for an explanation of the specimen codes. See Table 7 for the author names of the species listed.