Erymanthus horridus Westwood, 1852

Gerstmeier, Roland & Salvamoser, Max, 2014, Revision of the checkered beetle genus Erymanthus Spinola, 1841 (Coleoptera, Cleridae, Clerinae), Zootaxa 3755 (6), pp. 501-548 : 519-522

Erymanthus horridus Westwood, 1852

( Figs 20–21 , 40 A)

Westwood 1852: 35, t24 f12; Quedenfeldt 1888: 183; Pic 1937: 106.

ab. purpureoniger ( Murray, 1867) Murray 1867: 319.

Specimens examined: Lectotype (designated here): H, Erymanthus horridus Hope ms westw Proc. Zool. Soc. PL24 + 12 (in handwriting of J. O.Westwood), Type Westwood Proc. Zool. Soc. 1852 p35 T.24 fig 12. (white label with red border), TYPE COL1644 Erymanthus horridus Westwood HOPE DEPT. OXFORD, HOLTYPE (red printed label). Erymanthus horridus ab. purpureoniger : Lectotype (designated here): 33048, Afr. occid. vid eat, ex Mus. Murray, Fry Coll. 1905.100., Erymanthus horridus Westw. Vesuvioides Thomp. , Guinea, ?? Syntype Erymanthus horridus Westw. var. purpureoniger Murray, J. J. Menier det. 1981 (BMNH). Paralectotype (designated here): Old Cal., O. Calabar. 78 19, horridus Westw., Pr. 30d.8.1852.35 Old Calabar, probably a Syntype of E. horridus , purpureoniger Murr (BMNH).

Comment on the type specimens: Erymanthus horridus: Westwood made no mention of type specimens in his description of E. horridus therefore the single type specimen held in the Oxford University Museum of Natural History has been designated as the Lectotype. Erymanthus horridus ab. purpureoniger: Murray (1867) mentioned three specimens in his description of var. purpureoniger though did not designate any of them as a holotype. All purpureoniger type material are therefore considered syntypes ( ICZN 1999: Article 73.2) and available for lectotype designation ( ICZN 1999: Article 74.1).

Others: La Maboké, R. C. A. 20.11.69, Teocchi, Muséum Paris, Comparé au type par Jean J. Menier VII.1981, Erymanthus horridus J. J. Menier det. 1981 ( MNHN). Afrika, A. Schmidt T., 74605, 24, Erymanthus horridus Westw. Determ. E. Hintz ( ZMB). N. Kamerun, Joh. Albrechtshöhe, L. Conradt S., 18/11.95, 71, Erymanthus horridus Westw. , Museum f. Naturkunde Berlin ( ZMB). Togo, Amedzowe, Erymanthus horridus W. Ki. ( ZMB). N. Kamerun, Joh. Albrechtshöhe, L. Conradt S., 28.V.–12.VI.1898, 93, Erymanthus horridus Westw. , Museum f. Naturkunde Berlin ( ZMB). N. Kamerun, Joh. Albrechtshöhe, L. Conradt S., 1897–99, 1691, Erymanthus horridus Westw. , Museum f. Naturkunde Berlin ( ZMB). Zambia, 29.iii.1993, Kafue NP, Chunga Camp, lux, leg. M. Uhlig ( ZMB). Kamerun, Kribi 1890, Morgen S., Eurymanthus pustulosus . 1888 Quedf. ( ZMB). Kamerun, 1938, leg. Buhr ( ZMB). Ed. Buja, Kondué, Congo Belge, Donateur 1869c, Ed. Luja, Luxbg. VII.1907, 4952, 1927 ex Naturh. Mus. Luxemburg, S. Schenkling det. Erymanthus horridus Westw. ( RMNH). L. Conradt, N. Kamerun, Johann Albrechtshöhe, Zool. Mus. Berlin 1922: Erymanthus horridus Westw. ( RMNH). Kamerun, det. Schenkling. Erymanthus horridus Westw. , Erymanthus horridus 5..x Westw. ( RMNH). Gabon, Ivindo, Coll Le Moult, Naturaliste, Paris, J. B. Corporaal det. 1925: Erymanthus horridus Westw. var. Purpureoniger Murray ( RMNH). Musée du Congo, Katanga, 1929, (M. Zimmerhans.) ( MRAC). Musée du Congo, Sankuru: Kondue, Coll. Ed. Luja, horidus Westw. ( MRAC). Musée du Congo, Elisabethville, v–1912, Dr. Bequaert, Erymanthus horridus Westw., R. Det. F 405 ( MRAC). Coll. E. Ross, Berlin N.113, Jaunde, Kamerun, Sammlung P. Lepesme, Eing. Nr. 2, 1949, Erymanthus horridus Westw. ( ZMUH). Lamto (Toumodi), Côte d'Ivoire, 1.5. XII.1986, Côte d'Ivoire, C. Girard Coll. ( RGCM). Côte d'Ivoire, Dimbokro, Museum Paris, Le Moult. 1916, Erymanthus horridus Westw. P. Lesne vid. ( MNHN). West Afrika, Togo, Ex Musaeo E. Hintz, Erymanthus horridus Westw. Molard ( MNHN). Musée du Congo, Mongbwalu (Kilo), 1939, Mme Scheitz, horridus wesw., nigripes Hintz von, Museum Paris, Coll. M. Pic ( MNHN). La Maboké, R. C. A. 20.11.69, Teocchi, Museum Paris ( MNHN). La Maboké, R. C. A. 20.11.69, Teocchi, Museum Paris, ( MNHN). La Maboké, R. C. A. 20.11.69, Teocchi, Museum Paris ( MNHN). Côte d'Ivoire, Taï, Nov. 78, G. Couturier leg., Piège lumineux ( MNHN). Côte d'Ivoire, Taï, 4/78, G. Couturier leg., Piège lumineux ( MNHN). Côte d'Ivoire, Taï, Nov. 78, G. Couturier leg., Piège lumineux ( MNHN). Côte d'Ivoire, reg. de Taï, 14.2.1985, G. Couturier & V. van Zeijst Réc. Orstom-Paris, Mission Unesco, Environs Village de Gouleako, forét Decondaire de 17 ans, Biotope n° 21 ( MNHN). Nimba, XII.1953, 103 P ( MNHN). Lagos, Ex coll. Baden, Muséum Paris 1952, Coll. R. Oberthúr ( MNHN). Lamto (Toumodi), Côte d'Ivoire, 15–20.X.1966, Cl. Girard, Museum Paris ( MNHN). Lamto (Toumodi), Côte d'Ivoire, 5–10.IX.1968, Côte d'Ivoire, C. Girard Coll. ( MNHN). Lamto (Toumodi), Côte d'Ivoire, 1.5. XII.1986, Côte d'Ivoire, C. Girard Coll. ( MNHN). Southern Nigeria, exempl def suichi, Erymanthus horridus onvoime, Museum Paris, Coll. M. Pic ( MNHN). Côte d'Ivoire, 26.XII.56, P. Cachan ( MNHN). Wydah, R. P. Menager, Muséum Paris 1952, Coll. R. Oberthúr ( RGCM). Boguma, W. africa, Coll. Kraatz, Schenkling det. ( SDEI). Foumbot, Avril66 ( SDEI). N. W. Rhodesia: Solwezi District, 26°20'E. 12°10'S, Solwezi XI.1917. H. C. Dollman, H. C. Dollman Coll. 1919-79, Erymanthus horridus J. J. Menier det 1981 ( BMNH). Erymanthus horridus Westw. X , Erymanthus horridus Westw. ♀, J. J. Menier det. 1981 ( BMNH). Lagos Dist., S. Nigeria, 11.1948, W. E. S. Merrett, W. E. S. Merret. B. M. 1962-270, exBMNH, Erymanthus horridus Westw. J. J. Menier det. 19, no abdomen on Hv specimen J J M. 81, ♀ ( BMNH). Soil-Zoological Exp. Congo-Brazzaville, Sibiti IRHO, park, 28.11.1963, No. 287, by lamplight, leg. Endródy-Younga, M. Budapest ( ISNB). Old Cal., Mus. Zool. Polonicum Warszawa 12/45 ( ZMPA). Kamerun, Barombi, Conradt, Mus. Zool. Polonicum Warszawa 12/45 ( ZMPA). Coll. I. R. Sc. N. B., Gabon, Tchimbele, Vallée de la Mbei, 30.XI.– 10.XII.2004, Leg. P. Limbourg & Ph. Oremans ( RGCM). Rep. Centrafic., La Maboke, P. L. 12-11-1969, P. Teocchi rec., coll. R. Gerstmeier CRG Munich ( RGCM). RCI.1.87, Alepe, Jakub Rolčík Collection Prague ( JRCP). RCI.1.87, Alepe, Erymanthus ater Hintz, J. Rolčík det. 2004, Jakub Rolčík Collection Prague ( JRCP). Rep. Centrafic., La Maboke, 197, N'Gombé-Docko Réc., Jakub Rolčík Collection Prague ( JRCP). Kossou— Yamoussokro ( Côte d'Ivoire), 15-Gen-1972, legit: A. Bondinelli ( MZUF).

Diagnosis: Erymanthus horridus can be confused with E. revoili , E. ater and E. pustulosus . Erymanthus revoili has the pronotal gibbosities conical and a conspicuous, rasp-like, coarse punctation. Erymanthus pustulosus has a blunt phallic tip and blunt processes of ventrite VI. In E. ater the antennomeres 9–11 are longer than the antennomeres 1–8. Erymanthus horridus is recognizable by the longitudinal ridge in the pronotal groove, the conical phallic tip and the strongly pointed tips of ventrite VI.

Length: (37 specimens measured) 15–24mm (average 19,05mm).

Head: Black, antennae lighter (testaceous); frontal umbo with irregular structure (deep grooves and wrinkles); with isolated flavotestaceous pilosity.

Pronotum: Pronotal length to width ratio 0.97:1 to 1.14:1 (average 1.04:1); black; gibbosities conspicuously elevated, but smooth; pronotal groove with longitudinal ridge; with fine punctation; with flavotestaceous pilosity.

Scutellum: Black; smooth in the middle, with laterally directed flavotestaceous setae.

Elytra: Elytral length to width ratio 2.05:1 to 2.53:1 (average 2.31:1); black, sometimes with testaceous markings (especially on gibbosities); with fine, circular and isolated punctation in the basal half, interstices at least twice as wide as diameter of punctation, irregularly distributed; with isolated flavotestaceous pilosity; gibbosities yellow to red-brown, with brown to black setae.

Legs: Coxae, femora and tibiae dark brown to black.

Lower surface: Black, sometimes brown with yellow lateral spots; with dense white pilosity.

Male genitalia, pygidium, ventrite VI: Tips of tegminal lobes blunt, tegminal lobes one-fourth length of tegmen; tegminal struts broadened until three-fourths length then tapering until furcate tip; phallic tip conical; posterior side of pygidium rounded; processes of ventrite VI extremely pointed.

Distribution: Guinea, Ivory Coast, Ghana, Togo, Benin, Nigeria, Cameroon, Central African Republic, Gabon, Congo, DR Congo, Zambia.

Seasonal occurrence: Collected from January to December.

Figures

FIGURE 20. Erymanthus horridus: (A) Aedeagus ventral, (B) Phallus lateral, (C) Tegmen dorsal, (D) Spicular fork, (E) Pygidium, (F) Ventrite VI; (scale bars 1 mm).

FIGURE 21. Distribution of Erymanthus horridus.

FIGURE 40. (A) Erymanthus horridus, (B) Erymanthus maculaticeps, (C) Erymanthus melanurus, (D) Erymanthus pustulosus, (E) Erymanthus revoili, (F) Erymanthus semirufus; (scale bars 5 mm).