Paromalus montivagus Lewis, 1892: 37 [Japan: Fujisan].
Platylomalus montivagus: Kryzhanovskij and Reichardt, 1976: 275; Hisamatsu, 1985: 224, pl. 40, no. 26.
Australomalus montivagus: Mazur, 1984: 133.
Japanese name: Maru-chibi-hirata-emma-mushi.
Australomalus montivagus: Ôhara, 1994, 171.
Cryptomalus montivagus: Mazur, 1997, 181.
Australomalus montivagus: Ohara, 1994, 171.
Cryptomalus montivagus: Mazur, 1997, 181.
"Ovalis, convexiusculus, niger, supra, punctulatus; pedibus rufo-brunneis; elytris striis obsoletis; pygidio sublaevi vel grosse vermiculato; mesosterno marginato. L. 2.1/4 - 2.1/2 mill.
Oval, convex, black, punctulate above, with a strigose surface-sculpture visible under the microscope; the head lightly impressed in front, somewhat prominent over the eyes, stria complete, strong above the eyes, fine anteriorly; the thorax bisinuous behind the neck, anterior angles obtuse and depressed, stria complete, and on the edge before the scutellum is a row of ten or twelve large punctures; the elytra, punctuation larger and more dense than that of the thorax except on the dorsal area behind the scutellum, the striae are obsolete and in their place the punctures are rugose and confluent; a narrow margin at suture is smooth, the epipleural stria is fine and passes round the apex, and terminates after passing the angle at the suture; the propygidium is punctulate like the thorax; the pygidium impunctate in the female and microscopically strigose, in the male it is narrowly smooth at the base, with a coarse vermicular sculpture at the apex; the prosternum bistriate, striae indistinctly joined at the base, where the margin is a little broad; the mesosternum short and transverse, marginal stria nearly complete, being a little broken in the middle only, transverse stria widely sinuous, suture invisible; the metasternum, lateral stria oblique, punctuation sparse; the anterior femora conspicuously grooved like those figured for Phelister Simoni Lew. (Ann. & Mag. Nat. Hist. 1889, vol. iv, p.46); the anterior tibiae 5-6-dentate, posterior without spines. The minute strigosity is more apparent on the sternal plates than on the upper surface.
The facies of this species is like a very large Abraeus, and it is the only species noticed in this paper with an anterior marginal stria to the mesosternum.
Hab. Japan. I took several specimens at different places bordering the great plain of Fujisan in May 1880. It frequents old beeches."
Redescription (Ohara, 1994).
Male and female. Body length, PPL, 3.57 - 3.70 mm (3.62 ± 0.03, n=4), PEL, 3.39 - 3.51 mm (3.43 ± 0.03, n=4). Width, 2.13 - 2.95 mm (2.51 ± 0.05, n=16). Biometric data are given in Table 29. Body oval, black and shining; tarsi, mouthparts and antennae reddish brown.
Head sparsely covered with coarse punctures, which are separated by two or three times their diameter, the punctures becoming a little finer anteriorly; interspace among the punctures with alutaceous microsculptures.
Pronotum (Fig. 94A) sparsely covered with coarse, somewhat longitudinal oblong, and shallow punctures, which are separated by two to four times their diameter, and with other fine punctures intermingled; interspace among these punctures with alutaceous microsculptures.
Epipleural marginal stria fine and complete. Elytral marginal stria (Fig. 94A) (in original description, epipleural stria) strongly impressed and carinate. Epipleura impunctate, with alutaceous microsculptures. Oblique humeral stria present on basal fourth.
Propygidium densely covered with large, round and shallow punctures, which are unevenly separated by their own diameter to one-third the diameter. The punctation is not similar to that of pronotum in disagreement with the original description.
The male and female are confused in the original description; in reality, the pygidium is sparsely clothed with fine punctures and with alutaceous microsculptures in the male; in the female it has a coarse vermicular sculpture (Fig. 94C).
Anterior margin of prosternal lobe (Fig. 94B) truncate, its marginal stria complete and inwardly curved basally; lateral side of the lobe with another short margin which is strongly carinate; disk of the lobe evenly and finely punctate, the punctures being separated by about twice their diameter and becoming finer and sparser around margin. Prosternal process completely with carinal striae, which are strongly carinate and nearly parallel, and of which the basal ends are usually not jointed with each other along the basal margin of the lobe.
Anterior margin of mesosternum (Fig. 94B) deeply emarginate at middle, its marginal stria carinate and nearly complete, being shortly interrupted at middle; disk sparsely covered with fine punctures. Meso-metasternal suture strongly carinate, complete and widely sinuous. Disk of metasternum sparsely covered with large, oblong and shallow punctures, which are separated by two to five times their diameter, and become finer medially; area along mid line finely punctate, sometimes densely punctate; interspace among punctures with alutaceous microsculpture; surface feebly depressed mediobasally. Lateral metasternal stria carinate, extending obliquely and posteriorly, attaining to near basal one-third of metasternal-metepisternal suture.
Table 29. Biometric data of Australomalus montivagus (Lewis).
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APW 0.88-1.10 (0.99±0.01) 16
PPW 1.88-2.38 (2.11±0.04) 16
PL 1.00-1.25 (1.17±0.02) 16
EL 2.07-2.57 (2.29±0.04) 16
EW 2.13-2.95 (2.51±0.05) 16
ProW 1.07-1.57 (1.24±0.03) 16
ProL 0.38-0.56 (0.42±0.01) 16
PyL 0.47-0.75 (0.67±0.02) 16
PTL 0.75-0.94 (0.86±0.02) 16
MSTL 0.69-0.88 (0.81±0.02) 16
MTTL 0.82-1.07 (0.95±0.02) 16
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Intercoxal disk of 1st abdominal sternum sparsely covered with coarse punctures, which are separated by two to five times their diameter.
Protibia dilated, with 5 or 6 denticles on outer margin.
Male genitalia as shown in Fig. 95.
No details are known about habitat requirements of this species. Some specimens were collected in rotting woods.
[Hokkaidô] 1Åä, Nopporo, 30/v/1987, S. Kudô leg.; 1Åâ, Ditto, 21/v/1985, M. Ôhara leg.; 1Åä, Maruyama, 28/iii/?, no collector's name. (EIHU).
[Honshû] <Miyagi-ken> 1Åâ, Moriyasu, Akiu-mura, 24/vi/1951, no collector's name (NSMT). <Fukushima-ken> 1Åâ, Hirasawa-rindô, Hinoemata-mura, 21/v/1988, H. Haga leg.; 1Åâ1Åä, Hizumari, Tateiwa, Minami-aizu, 8/v/1949, Y. Kurosawa leg. (NSMT); 1Åâ, Yunohana, Tateiwa, Minami-aizu, 7/v/1949, Y. Kurosawa leg. (NSMT); 1 ex., Ôtakiyama, Omata, Ônuma, 15/vii/1950, Y. Kurosawa leg. (NSMT). <Yamagata-ken> 1Åä, Tokuami, Kitaoguni, Oguni, 2/vi/1957, I. K. leg. (NSMT). <Tôkyô-to> 1Åä, Nippara, Okutama, 12/iv/1983, M. Ishida leg. <Kanagawa-ken> 1Åâ, Ôwaki-dani, Hakone, 19/ix/1976, Y. Hirano leg. <Shizuoka-ken> 1Åâ, Mt. Amagi, 27/v/1956, H. Hayashi leg. <Niigata-ken> 1Åä, Sasagamine, Myôkô-kôgen, 29/viii/1932, Y. Kusui leg. <Gifu-ken> 2ÅâÅâ1Åä, Kammuri-yama-tôge, Tokuyama, 1/vi/1986, Y. Takai leg.; 1Åâ, Ditto, 11v/1986, Y. Takai leg.; 1Åâ, Ditto, 10/x/1986, Y. Takai leg. <Nara-ken> 1Åâ, Kasuga, 9/iv/1950, S. Uéno leg.; 2ÅâÅâ1Åä, Ditto, 20/v/1951, K. Sawada leg. <Kyôto-fu> 1Åâ, Kibune, 9/iii/1950, A. Nobuchi leg.; 1Åâ1Åä, Ditto, 9/vi/1953, A. Nobuchi leg. <Wakayama-ken> 1Åä, Mt. Gomanodan, 2/viii/1957, H. Kono leg. (Ôsaka Mus.).
[Kyûshû] <Fukuoka-ken> 2 exs., Mt. Adachi, 7/vii/1982, 28/iv/1964, S. Nakao leg. (NA). <Ôita-ken> 1 ex., Mt. Kujû, 20/v/1979, S. Nakao leg. (NA). <Miyazaki-ken> 2 exs., Mt. Sobo, 10-12/v/1969, H. Takizawa leg.
[Honshu] Fukui-ken: Ikegahara, Ôno (1 ex., 4/vi/1989), Y. Takai (Takai, 1995).
[Shikoku] Tokushima-ken: Minokoshi, Mt. Tsurugi (2 males & 2 females, , 26/v/1968, collected from a decayed tree), M. Yoshida.
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