Dasiosoma hirsutum (Bates, 1873) Shi & Zhou & Liang, 2013

Shi, Hongliang, Zhou, Hongzhang & Liang, Hongbin, 2013, Taxonomic synopsis of the subtribe Physoderina (Coleoptera, Carabidae, Lebiini), with species revisions of eight genera, ZooKeys 284, pp. 1-129 : 70-71

Dasiosoma hirsutum (Bates, 1873) comb. n. Habitus: Fig. 59 female genitalia: Fig. 137

Dasiosoma hirsutum Bates 1873: 333 (original: Singilis ; type locality: Hong Kong; lectotype deposited in MNHN); Bates 1883: 285 ( Lachnoderma ); Andrewes 1930d: 188 ( Lachnoderma ; catalogue); Jedlička 1963: 304 ( Lachnoderma ); Tian and Deuve 2001: 126, Figs ( Lachnoderma ; invalid lectotype designation).

Type examined.

Lectotype of Singilis hirsutus Bates, designated herein (MNHN): female, body length = 7.6 mm, board mounted, female genitalia dissected and deposited in microvial pinned under specimen " Hong/ kong "; " Singilis/ hirsutus/ Bates "; "Ex. Musaeo/ H. W. Bates/ 1892"; "Museum Paris/ 1952/ Coll. R. Oberthür”; " hirsuta/ Bates "; "Lectotype/ Singilis hirsutus/ Bates 1873 / Des. SHI H. L. 2011" [red label][Figs 59, 137]

Notes on type.

Tian and Deuve (2001) designated a lectotype for this species. Their lectotype ( Fig. 60 ) was collected in Ceylon in 1892, namely 19 years after the original publication. Obviously it was not examined by Bates when the species was described in 1873. In the original literature, Bates mentioned only one locality, Hong Kong, but did not indicate the number of specimens. The lectotype from Ceylon designated by Tian and Deuve (2001) does not belong to the type series, and their designation of lectotype is invalid. There is a single female in MNHN from Bates’ collection, bearing his determination label, and a label “Hongkong”. It was mentioned by Tian and Deuve (2001) as a paralectotype, but it is the true type and seems to be the unique syntype. We therefore herein designate this specimen as lectotype ( Fig. 59 ) for taxonomic purpose of fixing the name to unique name-bearing type.

Diagnosis.

Dorsal side uniform reddish brown; pronotal lateral margins slightly expanded in middle; basal foveae of pronotum distinctly curved anteromedially, disc without elongate depressions; vertex slightly tumid; tempora gradually narrowed behind eyes; body slightly stout, ratio EL/EW 1.44; aedeagus with median lobe moderately expanded at base, apical lamella short and wide. This species is most closely allied with Dasiosoma quadraticolle sp. n. Their differences are presented in the diagnosis part of Dasiosoma quadraticolle .

Description.

Body length 7.6 mm; dorsal side uniform reddish brown, lateral explanate areas of pronotum paler; antennae uniform reddish brown, mouthparts yellowish brown, apices of terminal palpomeres yellow; legs reddish brown; ventral side reddish brown. Dorsal side evenly and densely pubescent, pubescence golden; microsculpture indistinct. Head with vertex slightly tumid; tempora subequal to half length of eyes, gradually narrowed behind eyes; labrum slightly widened to apex, apical margin nearly straight. Pronotum slightly wider than head, widest at middle; ratio PW/PL 1.43; pronotal base briefly but distinctly lobed; front angles wide; lateral margins slightly expanded in middle, weakly rounded, strongly sinuate before hind angles; hind angles acute, sharp, slightly projected; disc slightly convex; lateral explanate areas wide and even; basal foveae deep and short, groove-like, strongly curved anteromedially; disc without elongate depressions; median line deep, not reaching basal or apical margins; disc not rugose. Elytra muchwider than pronotum, slightly widened to apex, ratio EL/EW 1.44; lateral margins slightly depressed at basal one-third, discal depressions indistinct; striae deep, forming distinct grooves, with moderately coarse punctures; intervals convex, densely pubescent, primary setigerous pores indistinct; umbilical series of 9th interval indistinct. Male genitalia unknown. Female genitalia. Spermatheca straight, claviform, moderately long; apical third slightly widened, with very faint ring-sculpture; spermathecal gland inserted at basal two-fifths of spermathe ca, not branched, very fine ( Fig. 137 ). [Lectotype has the apical part of the spermathecal gland damaged, but from the very fine remnant part we speculate that it may be very short, not exceeding the length of the spermatheca.] Apical segment of ovipositor short, triangular, slightly curved outward, inner margin slightly angulate in middle; length two times basal width; inner margin setose in apical half, outer margin in apical two-thirds; apex sharp, with membranous extension narrow.

Distribution

( Map 7 ). This species is only known from the type locality: Hong Kong.

Remarks.

The male specimen from Ceylon which was incorrectly designated by Tian & Deuve as lectotype is not identical with the true lectotype from Hong Kong. Compared with the lectotype, the specimen from Ceylon ( Fig. 60 ) differs in having: (1) vertex more tumid; (2) pronotal disc with distinct elongate depression on each side; (3) pronotum wider, lateral margins strongly rounded in middle; (4) striae shallower; (5) head and pronotum with color distinctly paler than elytra. These characters suggest this specimen may be closer to Dasiosoma bellum than Dasiosoma hirsutum , but with color different from and body stouter than in Dasiosoma bellum . This specimen may represent an undescribed species but it is necessary to find more specimens from Sri Lanka or Hong Kong to compare their male or female genital characters and confirm its status. The data for this specimen are as follows: male (MNHN), " Ceylan / Kandy 1892 / F. Simon "; "Museum Paris / Ex Coll. M. Maindron / Coll. G. Babault 1930"; " Lachnoder / hirsutum / Bates " [probably handwritten by Maindron]; " Lectotype "[red label]; " not type series! / Lectotype designation / invalid / Det. SHI H. L., 2011"[Fig. 60].

Figures

Map 7. Known distribution of Oriental species of genus Dasiosoma: ● Dasiosoma hirsutum (Bates) ★ Dasiosoma maindroni (Tian & Deuve) ▲ Dasiosoma quadraticolle sp. n. ◆ Dasiosoma bellum (Habu) ■ Dasiosoma indicum (Kirschenhofer).

Figures 55 - 60. Type materials, scale bars = 2.0 mm: 55 Holotype of Dasiosoma sudanicum Basilewsky 56 Holotype of Dasiosoma ivorense Basilewsky 57 Holotype of Diamella indica Kirschenhofer [= Dasiosoma indicum (Kirschenhofer)] 58 Paratype of Lachnoderma maindroni Tian & Deuve [= Dasiosoma maindroni (Tian & Deuve)] 59 Lectotype of Singlis hirsutus Bates [= Dasiosoma hirsutum (Bates)] 60 The " lectotype " designated by Tian & Deuve, 2001 for Singlis hirsutus Bates.

Figures 132 - 137. Internal reproductive system of females, scale bars = 0.2 mm: 132 Diamella cupreomicans (Oberthuer), a specimen from Yunnan 133 Allocota aurata (Bates), a specimen from Shaanxi 134 Allocota bicolor sp. n., a paratype from Yunnan 135 Lachnoderma asperum Bates, a specimen from Zhejiang 136 Dasiosoma maindroni (Tian & Deuve), a specimen from Tonkin 137 Dasiosoma hirsutum (Bates), lectotype.