Eulichas dudgeoni Jäch, 1995

Hájek, Jiří, 2009, Revision of the genus Eulichas Jacobson, 1913 (Coleoptera: Eulichadidae) II. E. dudgeoni species group, Zootaxa 2192, pp. 1-44 : 17-18

Eulichas dudgeoni Jäch, 1995

( Figs. 3 , 27 , 47 , 67 )

Eulichas dudgeoni Jäch, 1995: 372 (original description, Hongkong: Tai Po Kau forest); Jäch & Hájek 2006: 455 (catalogue).

Type locality. “Stream in Tai Po Kau forest, New Territories, Hong Kong ”.

Type material. 73 specimens — Holotype 3 ( NHMW): “ Hong Kong / Tai Po Kau / leg. Dudgeon [handwritten] / HOLOTYPUS / Eulichas / dudgeoni sp. n. / des. M. Jäch 1993 [red label, printed]”. Paratypes: 4633 2ƤƤ, same data, but printed ( NHMW); 933 4ƤƤ, “ HONGKONG / leg.Dudgeon [printed] ( NHMW); 233, “ HONGKONG, Tai Po Kau / 10.8.1983, light / leg. Dudgeon [printed]” ( NHMW); 13, “Coll.Nonfried / China [white label with black frame, printed] // Collect. / Plason [printed]” ( NHMW); 533, “Coll.R.I.Sc.N.B. / Chine: Kwang - Si / Nan - ning / ex coll. Le Moult [printed]” ( IRSNB, NHMW); 233, “Suisapa, 1000 M. / Lichuan Distr. / W. Hupeh, China / VIII-30-48 // Gressitt & / Djou Collrs. [printed]” ( NHMW).

Additional material studied. 23 specimens — CHINA: 13 1Ƥ, Sichuan Prov., Yannsien [= Ya’an, ca. 29°59’N 102°59’E], coll. Le Moult ( IRSNB); 13, Guangxi A.R., Jaochan, G. Sin leg. ( ZMHB); 433, Guangxi A.R., Region Nanning, 1931 ( MNHN); 13, Guangxi A.R., Yaosan [= Dayaoshan], 17.vii. [19]34, H.G. Tao leg. ( MNHN); 13, Guangxi A.R., Ku-ling [Guling, ca. 23°38’N, 108°17’E], 25.ii. [19] 35, O. Piel leg. ( MNHN); 13, Guangdong Prov., Lung-zo-Aam bei Kanton [= near Guangzhou] ( ZMHB); 1Ƥ, Guangdong Prov., Tsha-jiu-san [= Tshayuen Shan, ca. 24°53’N 113°50’E], vii.-ix.1910, S.V. Mell leg. ( ZMHB); 13, Guangdong Prov., Canton [= Guangzhou], Fung-wan, 1.v.1911, S.V. Mell leg. ( ZMHB); 233 1Ƥ, Hong Kong ( MNHN, NMPC); 13 Hongkong, Pak Sha O, 100 m, 4.viii.1989, W.J. Tennent ( BMNH); 13 1Ƥ, Jiangxi prov., Kiukiang [Jiujiang, ca. 29°43’N 115°58’E]; vii.1887, A.E. Pratt leg. ( MNHN); 1Ƥ, Fujian prov., Shaowu env., 23.-27.vi.1991 ( NHMW); 13, Zhejiang prov., Wenchow [Wenzhou, ca. 28°00’N 120°38’E] ( MNHN); 1Ƥ, Zheijang prov., Lin-An, Xi-Tianmu Shan Mt., 300-400 m, 17.vii.2000, N. Ohbayashi & L.-Z. Li leg. ( EUMC); 13 1Ƥ, Shanghai ( MNHN).

Description. Habitus elongate, fusiform. Body colouring from brownish-red to brown. Pale part of setation consists of recumbent yellowish or greyish setae uniformly covering body surface, or forming indistinct ocellations on elytra ( Fig. 3 ).

Measurements. Males: 20–25 mm; females: 25–31 mm.

Head punctation consists of irregularly distributed sparse moderately large setigerous punctures. Antenna long, slender, last antennomere slightly club shaped with apical elongation of variable length, ca. 3.55–4.53 times as long as wide ( Fig. 27 ), its ventral side smooth.

Pronotum trapezoidal, ca. 1.89–2.00 times as wide as long. Sides almost regularly rounded, rarely in some specimens with very indistinct obtuse angle near the middle ( Fig. 47 ). Pronotum with two rounded shallow depressions on the disc. Punctation consists of sparse moderately coarse setigerous punctures on the disc, which become slightly coarser and denser laterally.

Elytra with numerous longitudinal rows of moderately large punctures, and very fine interstitial setigerous punctures.

Ventral part with fine punctures, which are sparse medially and become larger and denser laterally. Last abdominal ventrite laterally almost regularly rounded to apex.

Male. Aedeagus with phallobase slightly shorter than parameres. Parameres simple, slender, attenuating regularly to the subapical hook. Parameral subbasal hook small, but the subapical hook is well developed, slightly prominent. Median lobe slender, subparallel ( Fig. 67 ).

Female. Similar to male in habitus, but larger. Antenna shorter, and more slender.

Collection circumstances. Imagos collected mostly at light (cf. Jäch 1995).

Distribution. A species occurring in central and southern China (Fujian, Guangdong, Guangxi Hong Kong, Hubei, Jiangxi, Sichuan, Shaanxi). Imprecisely labelled specimens are known also from “North China ”.

Eulichas sp. Ƥ ( bertiae / dudgeoni )

Material studied. 2 specimens — CHINA: 1Ƥ, Fujian prov., Kuatun [= Guadun], iv.-vi.1946, Tshung Sen leg. ( SMNS); 1Ƥ, Gansu prov., Bikou, 32°32’N 104°38’E, 3.-7.vii.1997, E. Kučera leg. ( NMPC).

Remarks. E. bertiae and E. dudgeoni represent extremely similar species in general appearance. Whereas I was not able to find any diagnostic characters on females of these two species, I am not able to resolve specific placement of specimens listed above.

Figures

FIGURES 1 – 12. Habitus of Eulichas. 1 — E. alesbezdeki sp. nov. (holotype); 2 — E. bertiae (paratype, Suisapa); 3 — E. dudgeoni (paratype, Hong Kong); 4 — E. jendeki (Sa Pa); 5 — E. siamensis sp. nov. (paratype, Ban Bo Klua); 6 — E. similis sp. nov. (paratype, Soppong); 7 — E. uniformis (Dolakha); 8 — E. baeri (Luzon); 9 — E. baeri (Crocker Range); 10 — E. gigantea (holotype); 11 — E. incisicollis ♂ (Tanah Rata); 12 — E. incisicollis Ƥ (holotype).

FIGURES 25 – 44. Male antennomeres IX – XI of Eulichas. 25 — E. alesbezdeki sp. nov.; 26 — E. bertiae; 27 — E. dudgeoni; 28 — E. jendeki; 29 — E. siamensis sp. nov.; 30 — E. similis sp. nov.; 31 — E. uniformis; 32 — E. baeri; 33 — E. incisicollis; 34 — E. oborili sp. nov.; 35 — E. robusta sp. nov.; 36 — E. sausai sp. nov.; 37 — E. serricornis sp. nov.; 38 — E. sikkimensis; 39 — E. sundaensis sp. nov.; 40 — E. wewalkai sp. nov.; 41 — E. fasciolata; 42 — E. jakli sp. nov.; 43 — E. subocellata; 44 — E. villosa sp. nov. Scale bar 1 mm.

FIGURES 45 – 54. Pronotum of Eulichas. 45 — E. alesbezdeki sp. nov.; 46 — E. bertiae; 47 — E. dudgeoni; 48 — E. jendeki; 49 — E. siamensis sp. nov.; 50 — E. similis sp. nov.; 51 — E. uniformis; 52 — E. baeri (Luzon); 53 — E. incisicollis; 54 — E. oborili sp. nov. Not in Scale.

FIGURES 65 – 71. Aedeagus of Eulichas in dorsal view. 65 — E. alesbezdeki sp. nov.; 66 — E. bertiae; 67 — E. dudgeoni; 68 — E. jendeki; 69 — E. siamensis sp. nov.; 70 — E. similis sp. nov.; 71 — E. uniformis. Scale bar 1 mm.