Cavelerius sweeti Slater & Miyamoto, 1963

Gao, Cuiqing & Zhou, Yu, 2021, Review of the genus Cavelerius (Heteroptera: Blissidae) with descriptions of three new species from China and Southeast Asia, Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 61 (1), pp. 113-132 : 122-125

Cavelerius sweeti Slater & Miyamoto, 1963

( Fig. 10 )

Cavelerius sweeti Slater & Miyamoto, 1963: 150 ; Sඅൺඍൾ*© & O’Dඈඇඇൾඅඅ

(1995: 48).

Type material examined. Pൺ*©ൺඍඒඉൾ: INDIA: ♀ [abdomen dissected], Dehra Dun [pr] / Rajpur [pr] // DONATION FROM / J. A. SLATER /

COLLECTION [pr] // Cavelerius [hw] / sweeti [hw] / PARATYPE [pr] / J. A. Slater [pr] & [hw] / S. Miyamoto [hw] [red label] ( AMNH). We examined the photos ( Fig. 10 ).

Diagnosis. Head, pronotum and abdomen black. First antennal segment pale yellow, second segment pale yellow except for black apical one-fifth, third and fourth segments black. Posterolateral lobes of pronotum slightly produced caudad. Hemelytra white; inner

vein, corial margins apically and claval commissure light yellowish brown, apical area of corium dark brown. Membrane white except for large central black spot reaching outer lateral margin of membrane and apical margin of corium. Fore femora brown, middle and hind legs light brown.

Distribution. Pakistan (Sඅൺඍൾ*© & Mංඒൺආඈඍඈ 1963), India (Uttarakhand) (Sඅൺඍൾ*© & Mංඒൺආඈඍඈ 1963).

Cavelerius tinctus (Distant, 1903) that is brown or pale brown. Corial apical margin brown.

( Figs 1b, c ; 11 ; 12 ) Large part of membrane with broad brown area, distinctly

Macropes tinctus Distant, 1903b: 26 ; Sඅൺඍൾ*© (1964: 499). contiguous to corial margin, close to or contiguous to

Cavelerius tinctus : Sඅൺඍൾ*© (1979:50); Sඅൺඍൾ*© & O’Dඈඇඇൾඅඅ (1995: 48). membranal lateral margins; base and small areas adjacent to apex of clavus and corium and apex of membrane pale

Type material examined. Sඒඇඍඒඉൾ: ♀, MYANMAR: Tenasserim / yellow. Legs yellow, hind tibiae paler.

Plapoo / Fea. Apr. 1887 [all pr] // Distant Coll. / 1911-383. [all pr] //

tinctus / Dist. [hw] // Syntype [red label with blue ring, pr] // Type [red Structure. Head broad, tip of clypeus extending forward

label with red ring, pr] // Macropes / tinctus / Distant, 1904 [all pr] // to apical one-third of first antennal segment. Pronotum

BMNH(E) / 1340312 [all pr] // NHMUK 013588110 [all pr].We examined almost quadrangular, with lateral margins slightly sinua-

the photos ( Fig. 11 ). te. Punctures of anterior lobe small and deep. Anterior

Additional material examined. CHINA: XංඓൺඇG: 6 JJ 2♀♀, XංඓൺඇǤ, and posterior lobe almost equal in width. Punctures of

Motuo, Beibeng county / 780–1100m / 13.viii.2003 / coll. Huaijun Xue,

Xinpu Wang [pr] ( NKUM). Yඎඇඇൺඇ: 1 J, Yඎඇඇൺඇ,Ruili Rare botanical posterior lobe scattered and inconspicuous. Posterolateral

/ Park, 31.vii.2006 / 1200m, coll. Zhonghua Fan [pr] ( NKUM); 2 ♀♀, lobes slightly produced caudad. Posterior margin of pro-

same place and date as above / 1000m, coll. Xu Zhang [pr] ( NKUM); notum slightly concave, with middle part almost straight

1 J, Yඎඇඇൺඇ, Longling, Banglazhang / 13.x.2002 / coll. Huaijun Xue, or slightly concave. Membrane mostly extends caudad

1300m [pr] ( NKUM). onto tergite VI. Abdomen wider than hemelytra; lateral

Redescription. Species of moderate size. Colouration. outline of abdomen parallel. Labium extending posteriad

Head, pronotum, scutellum and abdomen black. First an- onto anterior part of mesosternum.

tennal segment yellow, second antennal segment yellow Spiracles on laterotergite II about one-third as large as

except for brown to brownish black apex, third segment total width of laterotergite II there ( Fig. 12b ). Apical part

brown to brownish black, fourth segment black. Hemelytra of pygophoral dorsal opening oval, slightly narrower than

white to pale yellow. Inner margins and commissure of cla- basal part ( Fig. 12c ). Outer lobe of paramere finger-like,

vus brown and apical half of vein A1 on clavus brown. Vein long and tip obtuse; inner lobe of paramere broad and flat;

Cu brown except for basal one-third pale yellow. Majority blade of paramere distinctly curved, sickle-shaped, apex

of corium yellowish white except for small area at apex pointed ( Figs 12d–g ). Phallus shown in Figs 12h–k . Wings of sperm reservoir widest near base, about two times longer than width ( Fig. 12k ).

Measurements (n = 8; mm). Body length 5.64–7.72; maximum width 1.33–1.71. Head: length 0.50–0.71; width across eyes 0.90–1.05; interocular space 0.59–0.68; interocellar space 0.31–0.39; eye–ocellus space 0.13–0.18; eye length 0.20–0.24; eye width 0.18. Length of antennal segments I–IV: I – 0.22–0.24, II – 0.61–0.72, III – 0.55–0.68, IV – 0.80–0.89. Length of labrum 0.44; length of labial segments I–IV: I – 0.44–0.52, II – 0.47–0.61, III – 0.50– 0.66, IV – 0.41–0.46. Thorax: Pronotum, median length 1.02–1.27; width at anterior margin 1.24–1.47; width at posterior margin 1.28–1.51. Scutellar length 0.55–0.56, width 0.68–0.76. Length of hemelytra 3.17–3.48; length of corium 1.81–2.05; claval commissure 0.45–0.50.

Distribution. China (Xizang, Yunnan) (new country record), Myanmar (Dංඌඍൺඇඍ 1903b).

Remarks. According to Sඅൺඍൾ*© (1979), C. antennatus and C. tinctus show the first three antennal segments uniformly bright orange-yellow, but the apex of the second antennal segment and the third segment are brown to brownish black in C. tinctus ( Fig. 11 ).

Figures

Fig.10. Paratype of Cavelerius sweeti Slater & Miyamoto, 1963 and labels.a – paratype, dorsal view; b – labels (Photographed by Steve Thurston,AMNH).

Fig. 1. Cavelerius spp. a – C. antennatus Slater & Miyamoto, 1963, dorsal view; b–c – C. tinctus (Distant, 1903), dorsal and ventral view; d – C. minor Slater & Miyamoto, 1963, dorsal view; e–f – C. saccharivorus (Okajima, 1922), dorsal and ventral view.

Fig. 11. Syntype of Cavelerius tinctus (Distant, 1903) and labels. a – type, dorsal view; b – labels (Photographed by Ken Merrifield, BMNH).

Fig. 12. Cavelerius tinctus (Distant, 1903). a – male abdominal dorsum, dorsal view; b – basal part of male abdominal dorsum, enlarged; c – pygophore, posterodorsal view; d–g – left paramere, four different aspects; h–j – phallus, three different aspects; k – sperm reservoir and adjoining portion of phallus, dorsal view.