Orthopagus philippinus Melichar, 1914

Song, Zhi-Shun, Malenovsky, Igor, Chen, Jian-Qin, Deckert, Juergen & Liang, Ai-Ping, 2018, Taxonomic review of the planthopper genus Orthopagus (Hemiptera, Fulgoromorpha, Dictyopharidae), with descriptions of two new species, Zoosystematics and Evolution 94 (2), pp. 369-391 : 377

publication ID	https://dx.doi.org/10.3897/zse.94.26859
publication LSID	lsid:zoobank.org:pub:C354D7DF-198F-4D4F-A2A8-F763FD03018D
persistent identifier	https://treatment.plazi.org/id/4C5920DE-B5A1-B6B1-D93D-C2B717C24DE3
treatment provided by	Zoosystematics and Evolution by Pensoft
scientific name	Orthopagus philippinus Melichar, 1914
status

Treatment

Orthopagus philippinus Melichar, 1914 Figs 2I-J View Figure 2 , 3E View Figure 3 , 9A-J View Figure 9

Orthopagus philippinus Melichar, 1914: 173, Pl. I, figs 1, 2. Lectotype (here designated) male, Los Baños, Philippines ( MMBC, examined).

Type material examined.

Lectotype male (here designated), (1) Los Banos, P.I. Baker; (2) 1311; (3) Orthopagus philippinus [ Melichar’s handwriting] det. Melichar; (4) Collectio Dr. L. Melichar, Moravské museum Brno; (5) Orthopagus male Orthopagus philippinus sp.n., L. Melichar, 1914 [ Lauterer’s handwriting], P. Lauterer det. 1991; (6) Syn-typus [red label]; (7) Invent. č. 4954/Ent., Mor. muzeum, Brno; (8) Lectotypus male, Orthopagus philippinus Melichar, 1914, designated by Z. S. Song & I. Malenovský, 2018 [newly added red label] ( MMBC).

Paralectotypes, 4 females, same locality labels as holotype but Inv. nos 4949-4951, 4953;1 female, Mt. Makiling, Luzon, Baker ( MMBC, Inv. no. 4952, all paralectotypes bearing the following label: Paralectotypus female, Orthopagus philippinus Melichar, 1914, designated by Z. S. Song & I. Malenovský, 2018).

Other material examined.

PHILIPPINES: Luzon island : 1 male, Mt. Makiling , Baker leg. ( USNM) ; 1 male, Los Banos , 11.xii.1913, D. T. Fullaway leg. ( BPBM) ; 1 male, Los Banos , i.1913, P. Ledyard leg (LBOB) ; 2 males, Mt. Montalban, Rizal, Wa-wa Dam , 150-200 m, 6. and 17.iii.1965, H. M. Torrevillas leg. ( BPBM) ; 1 male, 4 females, Manila, G. Boettcher leg. ( MMBC) ; 1 male, 2 females, "B. M. 1925-491", E. M. Ledyard leg.; 1 female, "Acc. No. 6625, Lot, Bu. of Sci. , P. I.,1908-228", C. S. Banks leg. ; 1 male, "Acc. No. 5364, Lot , Govt. Lab. Coll., 1908-228", C. S. Banks leg. (all BMNH).

Redescription.

Measurements (4 males, 9 females). Body length (from apex of head to tip of forewings): male 10.6-11.4 mm, female 12.9-13.9 mm; head length (from apex of cephalic process to base of eyes): male 1.25-1.33 mm, female 1.35-1.45 mm; head width (including eyes): male 1.30-1.43 mm, female 1.50-1.60 mm; forewing length: male 8.5-9.1 mm, female 10.3-11.4 mm.

Coloration. General coloration as in generic description (Figs 2I-J View Figure 2 ). Vertex predominantly dark brown, lateral margins with a pale ochraceous S-shaped streak in posterior three quarters (Fig. 9A View Figure 9 ). Frons light ochraceous with small dark brown spots along intermediate and lateral carinae and a large roundish dark brown spot at base (Fig. 9C View Figure 9 ). Forewing membrane pattern as in Fig. 3E View Figure 3 . Hind wing membrane with a narrow dark brown infuscation along the apical portion of CuA1 vein, not extending along hind wing apical margin.

Structure. Head with cephalic process moderately elongate (Figs 9A-B View Figure 9 ). Vertex (Fig. 9A View Figure 9 ) with ratio of length at midline to width between eyes 1.6-1.8. Transition of vertex to frons blunt, broadly rounded in lateral view, cephalic process thus appearing inflated and bulbous apically (Fig. 9B View Figure 9 ). Frons relatively narrow, with ratio of length at midline to maximum width 2.7-3.1.

Male genitalia. Pygofer, in lateral view, with dorso-posterior margin produced into a relatively large but narrow, tooth-like, apically obtuse process (Fig. 9E View Figure 9 ); in ventral view (Fig. 9F View Figure 9 ) much longer than in dorsal view (Fig. 9D View Figure 9 ) with ratio of ventral to dorsal width about 2.5. Gonostyles (Fig. 9G View Figure 9 ) large, broad medially, with dorsal margin weakly sinuate. Aedeagus (Fig. 9H-J View Figure 9 ) with endosomal processes covered with minute superficial spines, extended posteriad and strongly curved laterad and dorso-anteriad but not reaching the base of phallobase; phallobase with one pair of large, strongly inflated dorsolateral lobes, their apex convergent and tapering posteriad (Fig. 9I View Figure 9 ), and one pair of smaller, thumb-like ventral lobes, directed ventro-posteriad (Fig. 9I-J View Figure 9 ). Segment X, in lateral view, relatively narrow basally, widening to apex beyond middle, apex blunt (Fig. 9E View Figure 9 ); in dorsal view, relatively large and broad, widest in apical third, ratio of length to maximum width 1.0-1.1 (Fig. 9D View Figure 9 ).

Female genitalia as in generic description.

Distribution.

So far only known from the Luzon island, Philippines.

Remarks.

Orthopagus philippinus can be easily recognized from other species of the genus by the shape of the head and the presence of a relatively large roundish dark spot at base of frons which is present in all specimens studied.

Melichar (1914) indicated that he described this species based on five (male and female) specimens from "Luzon, Los Baños, Mt. Maquiling (C. F. Baker)". Six specimens (1 male, 5 females) preserved in Melichar personal collection in MMBC and labelled as either from Los Baños or Mt. Makiling and collected by Baker are considered here as the original syntypes. The male specimen is designated here as the lectotype for O. philippinus to stabilize the nomenclature according to Article 74 of ICZN (1999).