Hyalopeplus Stål, 1871

Yeshwanth, H. M. & Chérot, F., 2018, The Indian Hyalopeplini (Insecta, Heteroptera, Miridae, Mirinae): A preliminary review, Zootaxa 4378 (3), pp. 301-322 : 307-308

Hyalopeplus Stål, 1871

( Figs. 9–39 )

Hyalopeplus Stål, 1871: 670 (as new genus) [Type species by monotypy: Capsus vitripennis Stål, 1855 , a junior homonym of Capsus vitripennis Say, 1832 , now Hyalopeplus lineifer ( Walker, 1873) ]. Hyalopeplus: Pathak 1969: 37 – 39 (citation from India in PhD, key); Carvalho & Gross 1979: 479 – 511, 512, 513, 514, 515 (revision, redescription, key, description of new species); Schuh 1995: 678 – 680 (catalogue); Kerzhner & Josifov 1999: 203 (catalogue); Zheng et al. 2005: 49 – 54, 685 (redescription, in fauna); Schuh 2002 – 2013 (online catalogue); Chérot et al. 2017: 86 (species from Papua New Guinera).

Diagnosis. Elongate, middle-sized to large and wide (total length between 6.4 and 12.3 mm, total width across hemelytra 2.0– 3.6 mm), dorsally almost glabrous bugs, with a relatively wide head. Eyes prominent but never substylate, slightly removed from pronotal collar anterior margin or almost contiguous with it. First antennal segment thick, incrassate sub-basally but never narrowed between both extremities, frequently shorter or slightly longer than head width across eyes. Pronotal collar relatively long, its length relatively close to first antennal segment maximal width. Pronotal callosities wide, medially almost contiguous, reaching pronotal lateral margins or slightly separated of pronotal lateral margins. Humeral angles never globose, laterally pointed and produced or rounded. Pronotal disk deeply striate transversally or punctate and striate, punctation and striation shallower. Mesoscutum uncovered, with lateral fossae. Scutellum deeply striate transversally or punctate. Lateral sides of scutellum never crenelated. A line of deep and wide points present along clavo-corial and embolio-corial sutures. Clavus, endocorium and membrane transparent, embolium and cuneus opaque or translucent.

Distribution. Genus widely distributed in tropical and equatorial areas of Old World, mainly in Oriental region, known from Australia (Northern Territory, New South Wales, Queensland), Babelthuap, China, Fiji Islands, Guam, Hawaii, India (Bengal, Upper Assam), Indonesia (Borneo, Sumatra, Iran Jaya), Ivory Coast, Japan, Laos, Madagascar, Malaysia ( Malacca, East and Peninsular Malaysia), Mariana Islands, Marquesas Islands, New Hebrides, New Ireland, Palau Islands, Papua New Guinea, Philippines Islands (Luzon, Mindanao, Negros), Papua New Guinea, Samoa Islands, Saõ Thomé, Seychelles Islands, Singapore, Solomon Islands, Sri Lanka, Tanzania, Timor, Tonga Islands, Uganda, Vanuatu, Vietnam.

Five species in India.

Key to Indian species (adapted from Carvalho & Gross, 1979)

1 (2) Pronotal disk widely and deeply punctate, rugose, with some small whitish tubercles, bearing one medio-longitudinal reddish line or devoid of such longitudinal line. Scutellum widely but shallowly punctate. Pronotal collar with five reddish stripes.............................................................. Hyalopeplus (Adhyalopeplus) similis Poppius, 1912 .

2 (1) Pronotal disk obviously striate transversally, the punctation more reduced, bearing frequently more than one reddish longitudinal lines. Scutellum striate transversally at least on its medial line, frequently widely but shallowly punctate laterally..... 3

3 (4) First antennal segment reddish, devoid of red spots. Pronotal collar with seven dark brown longitudinal stripes. Transversal black fascia of pronotal disk reaching its posterior margin and covering the humeral angles. Scutellum with two dark brown or black spots subapically, sometimes medially fused..................... Hyalopeplus (Hyalopeplus) rama ( Kirby, 1891) .

4 (3) First antennal segment yellowish or ochraceous. Pronotal collar with variable number of longitudinal stripes, generally 3 to 5. Transversal fascia of pronotal disk, if present, separated from pronotal posterior margin. Scutellum devoid of dark brown or black spots subapically................................................................................ 5.

5 (6) Humeral angles of pronotum not spinously produced outwards, almost rounded. First antennal segment with reddish spots............................................................... Hyalopeplus (Hyalopeplus) lineifer ( Walker, 1873) .

6 (5) Humeral angles of pronotum spinously produced outwards, prominent. First antennal segment devoid of reddish spot..... 7.

7 (8) Pronotal callosities devoid of longitudinal stripe..................... Hyalopeplus (Hyalopeplus) clavatus Distant, 1909 .

8 (7) Pronotal callosities with longitudinal reddish zig-zag shaped stripe...... Hyalopeplus (Hyalopeplus) spinosus Distant, 1904 .

Figures

FIGURE 9. Hyalopeplus clavatus Distant, 1909. Habitus in dorsal view (lectotype collected in Bengladesh preserved to BMNH).

FIGURES 10–13. Hyalopeplus lineifer (Walker, 1873). 10. Habitus in dorsal view. 11. Endophallus. 12. Left paramere. 13. Right paramere (an Indianspecimen collected in Mount Harriet cited in the text).

FIGURES 14–16. Hyalopeplus lineifer (Walker, 1873) alive in Mount Harriet, Adaman & Nicobar Islands breeding on Melastomasp.

FIGURES17–20. Habitus indorsal view of type-specimens of four Indian Hyalopeplini preserved to BMNHwith their labels. 17. Hyalopeplus rama (Kirby, 1891). 18. Hyalopeplus spinosus Distant, 1904c. 19. Isabel ravana (Kirby, 1891). 20. Onomaus pompeus Distant, 1904c.

FIGURES 21–33. Hyalopeplus similis Poppius, 1912. Variability of habitus in dorsal view and male genital structures of three Indian specimens. 21–24. Specimen from Coimbatore. 21. Habitus in dorsal view. 22. Endophallus. 23. Left paramere. 24. Right paramere.25–29.Specimenfrom Dharwad.25.Habitus indorsal view.26–27.Endophallus.28.Left paramere.29.Right paramere.30–33.Specimen from Gangtok.30.Habitus indorsal view.31.Endophallus.32.Left paramere.33.Right paramere.

FIGURES 34–39. Hyalopeplus similis Poppius,1912 alive from Bangalore, GKVK, Ex:Peltophorum pterocarpum.