Antheromorpha harpaga (Attems, 1937)

Likhitrakarn, Natdanai, Golovatch, Sergei I. & Panha, Somsak, 2016, Review of the Southeast Asian millipede genus Antheromorpha Jeekel, 1968 (Diplopoda, Polydesmida, Paradoxosomatidae), ZooKeys 571, pp. 21-57: 43-46

publication ID

http://dx.doi.org/10.3897/zookeys.571.7566

publication LSID

lsid:zoobank.org:pub:4EEA9AD1-5762-4A93-A189-CF185F64CBAF

persistent identifier

http://treatment.plazi.org/id/3302DCC0-9D4C-C404-A232-B67FB4049AC2

treatment provided by

ZooKeys by Pensoft

scientific name

Antheromorpha harpaga (Attems, 1937)
status

 

Taxon classification Animalia Polydesmida Paradoxosomatidae

Antheromorpha harpaga (Attems, 1937)  Figs 19, 20, 21

Orthomorpha harpaga  Attems, 1937: 77 (D).

Orthomorpha harpaga  - Attems 1938: 211 (D).

" Orthomorpha " harpaga  - Jeekel 1963: 269 (M).

Antheromorpha harpaga  - Jeekel 1968: 57 (M).

Antheromorpha harpaga  - Jeekel 1980: 85 (M); Golovatch 1983: 181 (M); Enghoff et al. 2004: 37 (M); Nguyen and Sierwald 2013: 1234 (M).

Lectotype

♂ of Orthomorpha harpaga  ( NHMW-3495), Vietnam, Khánh Hòa Province, 15 km southwest of Ngatrang, Souidau (= Cam Lam-Suoi Cat 1), 06.1933, leg. C. Dawydoff.

Paralectotype.

1 ♂ ( NHMW-3495), same locality, together with lectotype.

The lectotype is designated here to ensure that the name-bearing specimem is a complete ♂.

Redescription.

Length 19-21 mm (♂), width of midbody pro- and metazonae 1.8-1.9 and 2.3-2.6 mm, respectively (vs 1.8 and 2-2.5 mm in width of pro- and metazonae, respectively, as given in the available descriptions ( Attems 1937, 1938)). Coloration in alcohol, after long-term preservation, uniformly brown with a pale yellowish median stripe (Fig. 19 A–F), paraterga and epiproct pale whitish yellow or pale brown; antennae, legs and sterna whitish to pale brown.

Clypeolabral region sparsely setose, epicranial suture distinct. Antennae short (Fig. 19A), clavate (antennomere 6 broadest), reaching anterior edge of body segment 3 when stretched dorsally. In width, head < collum < segment 3 = 4 < segment 2 < 5-17, gently and gradually tapering thereafter. Collum with three transverse rows of setae: 4+4 in anterior, 3+3 in intermediate and 3+3 barely traceable insertion points in posterior row; caudal corner broadly rounded, slightly bordered and declined ventrally, not extending behind tergal margin (Fig. 19A, B).

Tegument smooth and finely shargreened, metaterga smooth and delicately rugulose; surface below paraterga finely microgranulate. Postcollum metaterga with two transverse rows of setae traceable at least as insertion points when setae broken off: 2+2 in anterior (pre-sulcus), 3+3 in posterior (post-sulcus) row. Tergal setae simple, slender, about 1/3 of metatergal length. Axial line barely visible, starting with collum. Paraterga very strongly developed (Fig. 19 A–G), slightly upturned, all lying below dorsum, set at about upper 1/3 of midbody height, anterior edge of paraterga broadly rounded, bordered and fused to callus; lateral edge of paraterga 2 with three small incisions, with two small incisions in anterior half on poreless segments, with only one incision near front 1/3 on pore-bearing ones; caudal corner of paraterga narrowly rounded, increasingly well pointed on paraterga 16-19; paraterga bent posteriad, extending behind tergal margin; posterior edge oblique. Calluses delimited by a sulcus only dorsally. Ozopores evident, lateral, lying in an ovoid groove at about 1/4 of metatergite’s length in front of caudal corner. Transverse sulcus usually distinct (Fig. 19A, C, F), complete on metaterga 5-18, incomplete on segment 19, wide, line-shaped, reaching bases of paraterga, evidently ribbed at bottom. Stricture between pro- and metazonae wide, shallow, clearly ribbed at bottom down to base of paraterga (Fig. 19 A–F). Pleurosternal carinae complete crests with a sharp caudal tooth on segments 2-4, bulged anteriorly and with a sharp caudal tooth on segments 5-7, thereafter only a small, sharp, caudal tooth on segments 8-11 (Fig. 19B, D, E). Epiproct (Fig. 19 E–G) large, subrectangular, flattened dorsoventrally, with two apical papillae remarkably curved caudoventrally, claw-shaped; tip subtruncate; pre-apical papillae small, but visible, lying rather close to tip. Hypoproct semi-circular, setiferous knobs at caudal edge well-separated.

Sterna sparsely setose, without modifications; a high, subcordiform, sternal lobe between ♂ coxae 4 (Fig. 19H, I). Legs moderately long and slender, midbody ones ca 1.2-1.4 times as long as body height, prefemora without modifications, ♂ tarsal brushes present until legs of segment 18.

Gonopods (Fig. 20) long and slender. Prefemoral part about 3 times shorter than femorite (= strongly setose) part. Femorite slender, evidently curved, postfemoral part demarcated by an oblique lateral sulcus; tip of solenophore (sph) clearly deeply bifid, with a very long, slender, pointed process (d); processes m and v very small tubercles.

Remarks.

This is the only species in this genus that has been reported from Vietnam ( Attems 1937). It differs from congeners in the gonopod solenophore being deeply bifid and showing a long and slender process d and a bidentate tip (Fig. 20C).