Adelphocoris
Creators: name: Chérot, F.
name: Malipatil, M. B.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Miridae
Adelphocoris

description: Key to the genera included in the Adelphocoris - Creontiades - Megacoelum complex
[The character states additional to those in other part of the couplet are given within brackets].
1. Head slightly prognathous, almost horizontal, elongate, anteriorly pointed, frons partially covering tylus in dorsal view. [Body small, about 5 mm long and uniformly chocolate brown to black (Figure 22). Labium reaching apex of abdomen. Scutellum slightly swollen. Secondary gonopore very wide, occupying most of phallus width; Galapagos Islands]..... Galapagomiris.
- Head regularly slopping anteriorly, with or without notch between frons and tylus, frequently distinctly rounded, never slightly prognathous, almost horizontal.......................................................................... 2.
2. Scutellum swollen to ampulated......................................................................... 3.
- Scutellum flat or almost flat............................................................................ 5.
3. Pronotal callosities with a pair of tubercles. [Body sub-oblong, small, about 4.5 mm, slightly convex, uniformly stramineous (Figure 28); Afrotropical]........................................................................ Gollneria.
- Pronotal callosities normal, without a pair of tubercles........................................................4.
4. Posterior margin of vertex slightly carinate. Labium reaching at least mesocoxae. Pronotum with dense recumbent pilosity at least in males. Tibial spines brown to red brown. Apical area of clavus devoid of a tuft of black, erect setae. Body length about 6 mm, relatively uniform, stramineous to yellow brown (Figure 15), frequently with callous dorsal spots on pronotum and hemelytra; Australia .................................................................... .. Chimsunchartella.
- Posterior margin of vertex not carinate. Labium short, reaching fore coxae. Pronotum with sparse, short, recumbent setae. Tibial spines yellow. Apical area of clavus with a tuft of black, erect setae. Body length about 5 mm, brown to black (Figure 7), devoid of callous spots; Argentina ............................................................ Carvalhocapsus.
5. Metafemora elongate, distally tapered and basally sulcate (Phytocoris -like). Pronotal and hemelytral pilosity including silvery and dark brown to black setae. [Body length 4.5–6.2 mm (Figures 4-6); Australian, Oriental and Pacific Regions]............................................................................................... .. Adelphocorisella.
- Metafemora not Phytocoris -like, proportionally shorter, not especially tapered distally or non-sulcate. Pronotal and hemelytral pilosity including only one color of setae...................................................................6.
6. Dorsal surface of pronotal disk shallowly but relatively widely punctate, rugulose. Pronotum distinctly pilose, particularly on lateral margin and collar. First and second antennal segments slightly club-like, first elongate, straight, second with elongate setae. Body length 7–9.5 mm, width 2–3.5 mm, stramineous, yellow or yellow-brown (Figure 68); Gabon, Tanzania ................................................................................................... Tricholygus.
- Not with above combination of characters..................................................................7.
7. Tibial spines dark, red brown to black. Secondary gonopore always complete though reduced (thin in Adelphocoris).......8.
- Tibial spines yellow to light brown. Secondary gonopore sometimes incomplete.................................. 13.
8. Endophallus devoid of sclerite. Body elongate, parallel sided, total length 6.5–10.5 mm. Hemelytra shining..............9.
- Endophallus including at least one kind of sclerite. Body size variable. Hemelytra dull or shining.................... 10.
9. Hemelytra almost glabrous, smooth, translucent, stramineous, cuneus red. Labium reaching posterior coxae. Posterior margin of eyes contiguous with pronotal collar. Body length 5.5–6.6 mm (Figure 34); Far East (Japan, Russia)..... Neomegacoelum.
- Hemelytra pilose, setae short, recumbent or semi-erect. Surface of hemelytra rugose and punctate, opaque, shining red brown, dark brown or black. Punctation of hemelytra dense, shallow and narrow. Labium reaching beyond posterior coxae. Eyes removed from pronotal collar. Body length 7–10.5 mm (Figures 36-50); Oriental Region................... Orientomiris.
10. Endophallus with a sclerite associated with apical (posterior) part of the secondary gonopore (gonoporal sclerite). Frons protruding, forming a distinct notch above tylus. Hemelytra opaque or translucent, Body uniformly stramineous to greenish (Figure 51), frequently with orange or red stripes or spots. [Total length 6–8.5 mm; Afrotropical Region].... Pleurochilophorus.
- Endophallus devoid of sclerite immediately associated with apical (posterior) part of the secondary gonopore, with a true spiculum or a spiculum and a comb. Frons gently curved, rounded, not separated from tylus by a notch. Hemelytra generally opaque. Body frequently not uniformly colored.............................................................11.
11. Endophallus including a subapical spiculum and a comb. [Secondary gonopore complete but thin. Body oblong to oval, total length 6–10 mm, green, brown or black bugs (Figure 3). Sulcus of vertex very thin, i.e. narrow and shallow, sometimes absent; Holopalearctic genus, with two species (one introduced) in the New World]............................. Adelphocoris.
- Endophallus including only a subapical spiculum, devoid of comb............................................. 12.
12. Pilosity of metafemora erect, shorter than width of metafemora. Dorsal pilosity reduced, short, recumbent, sometimes hemelytra almost glabrous. Body length 5–8 mm (Figures 29–33); Palearctic, with numerous species in the Mediterranean areas............................................................................................ .. Megacoelum.
- Pilosity of metafemora erect, distinctly longer than width of metafemora. Dorsal pilosity relatively long, erect, sparse, black or dark brown, particularly obvious on scutellum and hemelytra. Body length 6–8 mm (Figures 56–58); Europe, North Africa, Iraq, Russia .......................................................................... Pseudomegacoelum.
13. Body sub-oblong, outer sides (connexivium) of hemelytra slightly convex. Stiff setae of pronotal anterior corners present at
least in males (Waucori s). [First antennal segment relatively elongate, club-like apically. Primary apophysis of right paramere always with two pointed lobes. Middle-sized bugs, total length 6–8 mm]........................................14. - Body elongate, outer sides (connexivium) of hemelytra almost straight. Stiff setae of pronotal anterior corners absent....16.
14. Hemelytra always dull. Pronotum frequently orange, with a wide longitudinal black stripe medially (Figures 52–54). Endophallus devoid of phallic support, the secondary gonopore incomplete but with a pilose plate. No sclerite in or above dorsal wall; Australian and Oriental Regions....................................................... Poppiocapsidea.
- Hemelytra frequently reflective. Pronotal pattern and color different. Endophallus including a phallic support or a wrapped subapical sclerite, the secondary gonopore complete, devoid of pilose plate. Dorsal wall including or partially covering (and hiding) a pairs of sclerites..............................................................................15.
15. Phallic support elongate, sickle-shaped. Parieto-vaginal rings wide, thin, devoid of acute prolongation on their postero-outer margin. Hemelytral punctation simple, shallow and relatively wide. Body uniformly dull, orange brown (Figure 55); Australia ..................................................................................... Poppiomegacoelum.
- Phallic support if present convoluted, sometimes replaced by a wrapped subapical sclerite. Parieto-vaginal rings wide, thick, with an acute prolongation on their postero-outer margin. Hemelytral punctation double: one very reduced but dense, the second shallow but wider. Body usually not uniformly orange brown, reflective, yellow, orange and black (Figures 69–73); Iran Jaya, Papua New Guinea, Solomon Islands .......................................................... Waucoris.
16. Tertiary lobe of left paramere absent. [Body brown to dark brown, length 5.5–7 mm (Figures 1–2); Madagascar]................................................................................................... Adelphocoridea.
- Tertiary lobe of left paramere present.....................................................................17.
17. Anterior projection of parieto-vaginal rings present. Dorsal process of posterior wall present. Endophallus devoid of sclerite. Uniformly, stramineous, yellow, green, or yellow brown bugs sometimes with fine red or brown stripes (Figures 16–21)............................................................................................... Creontiades.
- Anterior projection of parieto-vaginal rings absent. Dorsal process of posterior wall absent. Endophallus always with a gonoporal sclerite, associated to the apical (posterior) part of the secondary gonopore................................... 18.
18. Endophallus including a true, subapical, spiculum, always devoid of phallic support arising basally to the secondary gonopore. Median process of posterior wall absent. Body length 8–11 mm. Hemelytra translucent, red brown, whitish or stramineous (Figure 8); Oriental Region.................................................................. Cheilocapsidea.
- Endophallus devoid of true spiculum, sometimes including a phallic support arising basally to the secondary gonopore. Median process of posterior wall present. Body length 7–8.4 mm. Hemelytra yellow and red (Fig. 35); Australia, Papua New Guinea ...................................................................................... Neopeplus.
description: Published as part of Chérot, F. & Malipatil, M. B., 2016, A review of Adelphocoris - Creontiades - Megacoelum complex (Hemiptera: Heteroptera: Miridae: Mirini), with descriptions of two new genera and four new species, pp. 151-206 in Zootaxa 4126 (2) on pages 196-197, DOI: 10.11646/zootaxa.4126.2.1, http://zenodo.org/record/262772