Auxentius vulgaris, Published, 2007

WALL, MICHAEL A., 2007, A revision of the Solomonius-group of the stinkbug tribe Halyini (Hemiptera: Pentatomidae: Pentatominae), Zootaxa 1539 (1), pp. 1-84 : 23-24

Auxentius vulgaris sp. nov.

( Figs. 5 A-B, 6E, 7A, 9D-F, 10D, 13)

Holotype. Male. PAPUA NEW GUINEA: Morobe Province, Mt. Kaindi, elev. 2350 m, [7 21' S, 146 41’ E], 10–11 January 1965, coll. J. & M. Sedlacek - 1 ♀. Deposited in Bernice P. Bishop Museum.

Diagnosis. Distinguished from congeners two ventral rows of barbs on profemora. Pygophore with a well-developed bilobed ventral projection of pygophore ( Fig. 9D ); and dorsal lobes of pygophore stout and oriented ventrally ( Fig. 9E ).

Description. Body 2X longer than broad ( Fig. 6E ). Head as long as breadth across eyes. Antennal segment I surpassing apex of head. Posterior margins of eyes converging toward midline. Pronotum with gibbosities of callus areas low; anterolateral margins denticulate; lateral angles spinose. Scutellum with apex slightly angulate, lateral portions dorsally reflexed. Posterior angle of laterotergites thinly produced.

Anterior angle of bucculae acute, almost spinose, directed anteroventrally. Labium reaching third abdominal sternite (second visible); ratios 1:1.7:1.6:1. Peritreme 2/5 as long as distance from ostiole of metathoracic scent gland to lateral margin of metapleuron. Episternal ridge located more than 4/5 of distance between ostiole of metathoracic scent gland and lateral margin of metapleuron. Profemora armed with two ventral rows of spines; anteroventral row composed of 4–5 developed distal ventral spines; posteroventral row composed of 2–3 small distal tubercles. Meso- and metafemora armed with two short ventral rows of tubercles; rows composed of 2–3 small distal tubercles

Color and vestiture. Ground color straminous with piceous punctures. Antennal segment I with piceous longitudinal dorsal marking; segments II–V primarily piceous. Pronotum with piceous dark markings surrounding gibbosities of callus area, posterior margin with five piceous triangular markings along posterior margin. Scutellum with two dark lateral longitudinal bands. Corium of mottled straminous and castaneous patches. Legs mostly straminous with piceous speckling; tibiae with two castaneous bands. Lateral portions of abdomen with interrupted irregular band along spiracular line, often restricted to patches around spiracles.

Male. Pygophore with broad, emarginate, median ventral process on ventral rim; lateral lobes of dorsal rim stout, slightly converging distally ( Fig. 9D–F ). Proctiger hemispherical, sulcate medially; posterior margin of basal sclerite broader than anterior margin, concave ( Fig. 9F )

Female. Eighth gonocoxa small, apically rounded, located in emargination of seventh sternite (sixth visible). Ninth laterotergites longer than broad, distally obtuse ( Fig. 10D ).

Measurements. Males (n=5): body length 16.7 SD 0.3 (16.1–17.1), anterior pronotal width 3.5 SD 0.1 (3.2–3.5), humeral width 8.7 SD 0.3 (8.3–9.1), scutellar length 6.9 SD 0.2 (6.8–7.3), medial length of sixth sternite (fifth visible) 1.2 SD 0.1 (1.1–1.3), medial length of seventh sternite (sixth visible) 2.8 SD 0.1 (2.6– 2.9). Females (n=5): body length 18.2 SD 0.3 (17.9–18.7), anterior pronotal width 3.5 SD 0.1 (3.4–3.7), humeral width 8.9 SD 0.1 (8.8–9.1), scutellar length 7.0 SD 0.1 (6.8–7.1), medial length of sixth sternite (fifth visible) 1.4 SD 0.1 (1.3–1.6), medial length of seventh sternite (sixth visible) 2.3 SD 0.1 (2.1–2.5). Appendages in Table 2.

Etymology. From the Latin word vulgaris — common; reflecting the widespread distribution of the species and its numerical abundance in collections.

Paratypes. INDONESIA: Irian Jaya, Swart Vale : W. Ridge, elev. 1800–2000 m, [3 36' S, 138 28’ E], 19 November 1958, coll. J.L. Gressitt - 1 ♂ ( BPBM) ; Wisselmeren, Enarotali , elev. 1800–1900 m, [3 55' S, 136 21’ E], 1–30 August 1962, coll. J Sedlacek - 2 ♂♂ ( BPBM) ; Wisselmeren, Itouda , Kamo V., elev. 1500 m, [3 55' S, 136 15’ E], 16–19 August 1962, coll. J Sedlacek - 1 ♀, 1 ♂ ( BPBM) ; Wisselmeren, Moanemani , Kamo V., elev. 1500 m, [7 3' S, 139 45’ E], 19 August 1962, coll. J Sedlacek - 1 ♀ ( BPBM) ; PAPUA NEW GUINEA: Central Province, Mt. St. Mary , elev. 1900 m, [8 8' S, 146 58’ E], 15–31 July 1968, coll. Tawi Mena - 2 ♀♀ ( BPBM) ; Chimbu Province, Chimbu Valley , elev. 1800 m, [6 1' S, 144 56’ E], 16 May 1963, coll. J. Sedlacek - 1 ♂ ( BPBM) ; Mt. Karimui , elev. 1810 m, [6 31' S, 144 48’ E], 16–20 April 1977, coll. N. Nadkarni - 1 ♀ ( BPBM) ; Enga Province, Lake Sirunki , elev. 2570 m, [5 24' S, 143 26’ E], 17 June 1963, coll. J Sedlacek - 1 ♀, 1 ♂ ( BPBM) ; Yaibos , elev. 2150–2200 m, [5 34' S, 143 50’ E], 10 June 1963, coll. J. Sedlacek - 1 ♀ ( BPBM) ; Madang Province, Finisterre Range, Saidor: Matoko Vill. , [5 43' S, 146 15’ E], 6 September 1958 - 1 ♂ ( BPBM) ; Morobe Prov., Garaina , elev. 800 m, [7 52' S, 147 7’ E], 16 January 1968, coll. J. & M. Sedlacek - 1 ♂ ( BPBM) ; Morobe Province, Arabuka , elev. 2000 m, [7 56' S, 147 3’ E], 7 January 1968, coll. J. & M. Sedlacek - 1 ♂ ( BPBM) ; Mt. Kaindi , elev. 1900–2400 m, [7 21' S, 146 41’ E], coll. Tawi Bukam - 3 ♀♀ ( BPBM) ; same locality, coll. J. Ku - 1 ♀ ( BPBM) ; same locality, 10–11 January 1965, coll. J. & M. Sedlacek - 1 ♀♀ ( BPBM) ; same locality, 16 April 1965, coll. J. Sedlacek - 1 ♀ ( BPBM) ; same locality, 23 March 1966, coll. J.L. Gressitt - 1 ♀ ( BPBM) ; same locality, 6–30 April 1966, coll. J.L. Gressitt - 6 ♀♀ ( BPBM) ; same locality, 15 April 1966, coll. J.L. Gressitt - 1 ♂ ( BPBM) ; same locality, 17 June 1966, coll. J.L. Gressitt - 1 ♂ ( BPBM) ; same locality, 19 March 1968, coll. P. Colman - 2 ♀♀ ( BPBM) ; same locality, 7–10 May 1968, coll. J.L. Gressitt - 4 ♀♀ ( BPBM) ; same locality, 16 September 1968 - 1 ♀, 1 ♂ ( BPBM) ; same locality, 24 April 1970, coll. J.L. Gressitt - 3 ♀♀, 19 ♂♂ ( BPBM) ; same locality, 1–4 September 1970, coll. J.L. Gressitt - 2 ♀♀ ( BPBM) ; same locality, 7 June 1971, coll. J.L. Gressitt - 1 ♀ ( BPBM) ; same locality, 7–29 June 1971, coll. J. Sedlacek - 1 ♀, 1 ♂ ( BPBM) ; same locality, 10 September 1971, coll. Tawi Mena - 1 ♀, 1 ♂ ( BPBM) ; same locality, 19 November 1971, coll. W.C. Gagn - 1 ♂ ( BPBM) ; same locality, 2 April 1973, coll. J. Ku - 1 ♂ ( BPBM) ; same locality, 4 May 1973, coll. J.L. Gressitt - 1 ♀ ( BPBM) ; same locality, 23–30 July 1973, coll. J.L. Gressitt - 3 ♀♀ ( BPBM) ; same locality, 13 August 1973, coll. Tawi Bukam - 1 ♀ ( BPBM) ; same locality, 4 February 1974, coll. J.L. Gressitt - 2 ♀♀ ( BPBM) ; same locality, 26 March 1974, coll. Tawi Bukam - 3 ♀♀ ( BPBM) ; same locality, 8 April 1974, coll. A. Hart - 1 ♂ ( BPBM) ; same locality, 26 March 1976, coll. Tawi Bukam - 1 ♀ ( BPBM) ; same locality, 1 January 1977, coll. Ateng - 1 ♀ ( BPBM) ; Watut–Aseki Div. , elev. 1800 m, [6 39' S, 146 32’ E], 1–30 April 1974, coll. J.L. Gressitt - 1 ♀ ( BPBM) ; Wau Ecology Institute , elev. 1100– 1300 m, [7 20' S, 146 43’ E], 28 January 1963, coll. J. Sedlacek - 1 ♀ ( BPBM) ; same locality, 16–18 September 1964, coll. J Sedlacek - 2 ♂♂ ( BPBM) ; same locality, 4 March 1974, coll. H. Szent – Ivany - 1 ♀ ( BPBM) ; Wau. Edie Creek , elev. 2100–2300 m, [7 17' S, 146 43’ E], 7 August 1963, coll. P. Shanahan - 1 ♀ ( BPBM) ; same locality, 2–3 October 1964, coll. J Sedlacek - 4 ♀♀, 3 ♂♂ ( BPBM) ; same locality, 5 April - 6 May 1965, coll. J. & M. Sedlacek - 1 ♀, 2 ♂♂ ( BPBM) ; same locality, 17–18 August 1965, coll. J. Sedlacek - 1 ♀ ( BPBM) ; same locality, 31 March 1966, coll. J.L. Gressitt - 1 ♂ ( BPBM) ; Northern Province, Sangara , [8 48' S, 148 14’ E], 31 August - 2 September 1963, coll. J. Sedlacek - 2 ♂♂ ( BPBM) ; Southern Highlands, Dimifa SE of Mt. Giluwe, elev. 2200 m, [6 3' S, 143 52’ E], 9–12 October 1958, coll. J.L. Gressitt - 2 ♀♀, 3 ♂♂ ( BPBM) ; Mt. Giluwe , elev. 2400–3000 m, [6 3' S, 143 53’ E], 30 May 1961, coll. J.L. Gressitt - 2 ♀♀ ( BPBM) ; same locality, 5 June 1963, coll. J. & M. Sedlacek - 1 ♀ ( BPBM) ; Western Highlands, Kepilam , elev. 2450–2600 m, [5 36' S, 143 33’ E], 22 June 1963, coll. J. Sedlacek - 1 ♂ ( BPBM) ; Korn Farm , elev. 1580 m, [5 51' S, 144 18’ E], 19 October 1958, coll. J.L. Gressitt - 2 ♂♂ ( BPBM) ; Western Province, Kiunga , elev. 30 m, [6 7' S, 141 18’ E], 1–31 January 1970, coll. O.K. McCaw - 1 ♀ ( AM) .

Distribution. Generally high and mid-elevational areas along central mountain ranges of Papua New Guinea and Irian Jaya, with one notably low elevational outlier in the Western Province of Papua New Guinea ( Fig. 13 ).

Figures

FIGURE 5. Sexual dimorphism in Auxentius. A. A. vulgaris sp. nov., male, B. A. vulgaris sp. nov., female.

FIGURE 6. Auxentius species, habitus. A. A. clandestinus sp. nov., B. A. integer Horváth, C. A. nigriculus sp. nov., D. A. quasimodooides sp. nov., E. A. vulgaris sp. nov., F. A. zephyrius sp. nov..

FIGURE 9. Ventral, lateral, and dorsal views of pygophore of selected species of Auxentius. A-C. A. quasimodooides sp. nov., D-F. A. vulgaris sp. nov., G-I. A. zephyrius sp. nov..

FIGURE 10. External genitalia of selected species of Auxentius. A. A. clandestinus sp. nov., B. A. integer Horváth, C. A. nigriculus sp. nov., D. A. vulgaris sp. nov., E. A. zephyrius sp. nov..

FIGURE 13. Distribution of Auxentius vulgaris sp. nov. and A. zephyrius sp. nov. in New Guinea.