Buchananiella crassicornis Carayon

Yamada, Kazutaka & Hirowatari, Toshiya, 2007, A new Buchananiella Reuter (Hemiptera: Anthocoridae) from Indochina and the Malay Peninsula, with a note on B. crassicornis Carayon, Zootaxa 1398, pp. 29-36 : 35

Buchananiella crassicornis Carayon

( Figs. 3 , 6 , 13–15 )

Buchananiella crassicornis Carayon, 1958: 154 ; Muraleedharan and Ananthakrishnan 1974: 33; 1978: 66; Yamada and Hirowatari 2005: 73, 74.

Diagnosis. Recognized by the following characters: Head ( Fig. 3 ) blackish brown; anteocular portion slightly shorter than length of eye in dorsal view. Antenna ( Fig. 3 ) yellowish brown; segment II about 0.8 times as long as head width across eyes, apically tinged with dark brown. Rostrum ( Fig. 6 ) pale yellow; segments III basally darkened. Pronotum ( Fig. 3 ) shiny black. Hemelytra ( Fig. 3 ) pale brown; clavus, cuneus, apical 1/3 of embolium blackish brown; membrane uniformly smoky dark brown, with three parallel veins. Legs almost yellowish brown; fore and mid femora sometimes faintly darkened; hind femur blackish brown. Pygophore without parameroid process; paramere ( Figs. 13, 14 ) subrectangular, apically hooked. Omphalus ( Fig. 15 ) cylindrical, more elongate, extending toward anteriorly.

Measurements [ɗ (n=1) /Ψ (n=5)]. Body length 2.50/2.75–3.08; head length (excluding neck) 0.38/0.40– 0.42, head width across eyes 0.42/0.44–0.45; vertex width 0.20/0.19–0.21; width between ocelli 0.10/0.12– 0.14; length of antennal segments I–IV: 0.13/0.10–0.12, 0.34/0.34–0.36, 0.20/0.18–0.20, 0.24/0.22–0.25; length of last three rostral segments II–IV: 0.08/0.06–0.09, 0.23/0.25–0.27, 0.17/0.18–0.20; anterior pronotal width 0.36/0.36–0.38; mesal pronotal length 0.36/0.37–0.40; basal pronotal width 0.77/0.86–0.95; length of embolial margin 0.76/0.80–0.90; length of cuneal margin 0.40/0.50–0.52; maximum width across hemelytra 0.78/0.90–0.98.

Specimens examined. THAILAND: 1ɗ ( Figs. 13, 14 ) 2Ψ ( Fig. 3 , 15 ), Mae Sa, 400–450 m alt., Mae Rim, Chiang Mai, 13.viii.2001, T. Ishikawa; 3Ψ ( Fig. 6 ), same locality, 16–17.v.2002, T. Ishikawa.

Distribution. Côte–d’Ivoire, India, Thailand *, Japan (the Ryukyu Islands).

Comments. This species has been fragmentarily known from Côte–d’Ivoire, India, and Japan. Judging from previous distributional records, this is considered to be a tropical and subtropical species.

Specimens from Thailand have a rather larger body than those from Africa (1.78–1.94 in male, 2.00– 2.21 in female: Carayon 1958) and Japan (1.80–2.20 in male, 2.08–2.38 in female: Yamada & Hirowatari 2005).

Figures

FIGURES 1 – 3. Buchananiella spp. in dorsal view. 1, B. atrata n. sp., male, holotype, from Selangor, Malaysia. 2, ditto, female, paratype, from Johor, Malaysia. 3, B. crassicornis, female, from Chiang Mai, Thailand. Scale bars: 1.0 mm.

FIGURES 4 – 7. Head and pronotum (4), heads (5, 6) and ostiolar peritreme and evaporative area (7). 4, 5, 7, Buchananiella atrata n. sp. male. 6, B. crassicornis, female. 4, in dorsal view; 5, 6, in lateral view; 7, in left lateroventral view. Scale bars: 0.3 mm for 4 – 6; 0.1 mm for 7.

FIGURES 8 – 15. Male (8 – 11, 13, 14) and female (12, 15) genitalia of Buchananiella atrata n. sp. (8 – 12) and B. crassicornis (13 – 15). 8, Pygophore; 9 – 11, 13, 14, parameres; 12, 15, female genital segments. 8, 9, 13, in dorsal view; 11, in posterior view; 12, 13, in ventral view. 8 – 11, holotype (glass slide No. OPU – KY 150); 12, paratype. Scale bars: 0.1 mm for 8, 12, 15; 0.05 mm for 9, 11, 13. Arrows indicate omphalus.