Polyozus manilla, WEIRAUCH, 2007

WEIRAUCH, CHRISTIANE, 2007, Revision and Cladistic Analysis of the Polyozus Group of Australian Phylini (Heteroptera: Miridae: Phylinae), American Museum Novitates 3590, pp. 1-64 : 53-54

Polyozus manilla , new species figures 2 , 7 , 9 , 11 , 13 , 17–20

HOLOTYPE: AUSTRALIA: New South Wales: 37 km W of Retreat (20 km E Manilla ), 30.66668 ° S 150.8 ° E, 450 m, 24 Oct 1995, Schuh and Cassis, Notelaea microcarpa R.Br. (Oleaceae) , det. K.D. Hill 1996 395921 H95-22, 13 ( AMNH _PBI 00087654) ( AM).

DIAGNOSIS: Recognized by the small size, moderately elongate ovate body, pale green or brown general coloration, and characters of the male genitalia, most notably the small vesica with dorsal apical process bladelike, with serration on exterior surface and process of triangular shape, median apical process tree-shaped with numerous branches. Habitus similar to P. australianus , but distinguished by the different coloration, body shape, the left paramere stouter and shorter (in dorsal view) in that species.

DESCRIPTION: Male: Of moderate size, elongate ovoid, total length 3.02–3.43, length apex clypeus–cuneal fracture 1.91–2.05, width across pronotum 1.01–1.09. COLORATION ( fig. 2 ): General coloration green, pale brown, pale orange, and orange. Head: Vertex and clypeus pale orange, sometimes vertex medially with pale area and base of clypeus brown, fasciae indistinct, mandibular and maxillary plates, gena and gula pale to sometimes vivid green. Antennal segments pale and gradually infuscate toward apex, brown ring subbasally on segment 1. Labial segments pale, darker toward apex. Thorax: Pronotum green, calli and posterior lobe with yellow tinge and with more or less distinct pale median longitudinal line, mesonotum orange with paired green marks, scutellum green with pale apex. Pleura green with large parts of mesepisternum and metepisternum orange. Legs: Pale with tarsi infuscate, fore and middle femora with small brown spots and hindfemur with larger brown spots, tibial spines dark with dark bases. Hemelytra: Corium including cuneus usually pale brown with greenish tinge, sometimes brown, cuneus with large proximal clear area, membrane infuscate, veins pale to orange, anterior cell distinctly infuscate, with contrasting clear area anterior to cell and distal to corium. Abdomen: Pale green anteriorly, with gradually increasing yellow tinge toward pygophore. SURFACE AND VESTITURE: Dorsum shining, densely covered with moderately stout, subadpressed, dark, simple setae, and flattened, adpressed, silvery setae. STRUCTURE: Head: Short, vertex slightly wider than width of one eye, clypeus slightly produced, and maxillary plate sunken; eye large, as high as head. Antennal segment 1 moderately slender and slightly surpassing apex of head, segment 2 of moderate length and diameter, slightly smaller diameter than segment 1, diameter not increased toward apex, segments 3 and 4 slender, segment 3 longer than segment 4. Labium very slender, apex not reaching base of metacoxa. Thorax: Pronotum wider than long and anterior margin slightly sinuate. Legs: Claws of moderate length and stoutness and pulvilli of moderate size. Hemelytra: Hemelytra with costal margins subparallel, cuneus elongate triangular. Abdomen: Short and slender, just surpassing costal fracture. GENITALIA: Parameres: Right paramere as in figure 7 ; left paramere ( fig. 9 ) with anterior process of medium length and thickness, posterior process long, slender, bent ventrad, and truncate at apex, body with distinct, almost horizontal lobe, slightly bent to the left. Phallotheca ( fig. 11 ): External portion irregularly tubular, tapering toward apex, anterior surface basally with large horizontal flange and small serrate lobe subapically, posterior surface with weakly serrate small lobe, opening ventral, slitlike at base and extended toward apex. Vesica ( fig. 13 ): Small, with dorsal apical process blade-shaped and with exterior margin indistinctly serrate, proximal process triangular, small, median apical process tree-shaped with numerous branches, weakly sclerotized, ventral apical process long and slender, not connected to strap of vesical body.

Female: Color pattern similar to male, slightly paler, shorter and more ovoid than male. Total length 2.91–3.12, length apex clypeus–cuneal fracture 1.90–2.02, width across pronotum 1.02–1.10.

ETYMOLOGY: Named for the type locality.

HOST (appendix 1): Known from Notelaea microcarpa (Oleaceae) . Notelaea microcarpa is distributed in the north-east of New South Wales, eastern Queensland, and the Arnhem Land region of the Northern Territory (AVH).

DISTRIBUTION: Known from two collecting events in northern New South Wales, located about 15 km apart ( fig. 17 ).

DISCUSSION: The cladistic analysis gives evidence that this species is closely related to P. kuringgai , P. australianus , and P. galbanus . Both P. australianus and P. galbanus are restricted to Acacia spp. Future collecting will show whether Notelea is a breeding host for P. manilla whose relatives appear to be restricted to Acacia .

PARATYPES: AUSTRALIA: New South Wales: 22 km W of Retreat (35 km E Manilla ), 30.66668 ° S 150.8833 ° E, 600 m, 23 Oct 1995, Schuh and Cassis, Notelaea microcarpa R.Br. (Oleaceae) , det. K.D. Hill 1996 NSW 395921, 143 (AMNH_PBI 00132647– 00132660), 15♀ (AMNH_PBI 00132662– 00132676) (AMNH). 37 km W of Retreat (20 km E Manilla ), 30.66668 ° S 150.8 ° E, 450 m, 24 Oct 1995, Schuh and Cassis, Notelaea microcarpa R.Br. (Olacaceae) , det. K.D. Hill 1996 395921 H95-22, 113 (AMNH_PBI 00087653, AMNH_PBI 000876- 55–00087664), 9♀ (AMNH_PBI 00087665– 00087673) (AM).

Figures

Fig. 2. Habitus photographs of Polyozus spp.

Fig. 7. Right parameres of species of Ancoraphylus, Exocarpocoris, and Polyozus.

Fig. 9. Left paramere of species of Polyozus, shown in dorsal and lateral view. Numbers on illustrations refer to characters and character states in table 2.

Fig. 11. Phallotheca of species of Polyozus, in dorsal and ventral perspective. Numbers on illustrations refer to characters and character states in table 2.

Fig. 13. Vesica of species of Polyozus.

Fig. 17. Distribution of species of Polyozus.

Fig. 18. Phylogenetic relationships of the 16 species of the Polyozus group: The strict consensus of the eight equally most parsimonious trees (L 5 91; CI 5 67; RI 5 83) derived from the character matrix in table 3. Solid circles on the branches indicate uniquely derived apomorphic character states; empty circles indicate homoplastic characters under unambiguous character optimization. Figures above the bars indicate number of character as shown in table 2 and appendix 1; figures below bars indicate the character state. Large figures in shaded circles denominate clades. Branch support values (Bremer support) are given above branches in square boxes.

Fig. 19. Strict consensus of the two most parsimonious trees obtained with the analysis using implied weights. Characters and clades are shown as explained in figure 18.

Fig. 20. Fast optimization of host plants of Phylini of the Polyozus group on the strict consensus of the unweighted analysis.