Delacampius parvulus, Stehlík & Jindra, 2008

Stehlík, Jaroslav L. & Jindra, Zdeněk, 2008, New taxa of the Largidae and Pyrrhocoridae (Hemiptera: Heteroptera) from the Oriental Region, Acta Entomologica Musei Nationalis Pragae 48 (2), pp. 611-648 : 614-615

Delacampius parvulus sp. nov.

( Figs. 1-2 )

Type material. HOLOTYPE: J (brachypterous), THAILAND: PHETCHABURI PROVINCE: Kaeng Krachan National Park , 300-400 m a.s.l., 17.xi.1985, D. Burckhardt & I. Löbl lgt. ( MHNG).

Description. Colouration ( Fig. 1 ). Head, labium, antennomeres 1-3, antennomere 4 in ca. apical quarter, pronotum (except of lateral margins), scutellum, clavus, mesotergites, and legs brownish black; sternum and zygosterna blackish. Lateral pronotal margin and hypocostal lamina reddish, ventral and dorsal laterotergites vividly red, corium whitish. Corium with prominent, nearly triangular black spot with upper margin skewed anteriorly towards outer margin of corium and delimited laterally by radial vein and medially by cubital vein.

Structure. Body very small. Head in front of eyes more elongated than in other congeners; antennomere 4 stouter than antennomere 3. Callar lobe strongly gibbous, with shallow impressions in distal half; pronotal lobe flat; lateral margin between callar and pronotal lobe strongly concave; lateral margin of pronotal lobe sharp, with inconspicuous strigil. Costal margin of hemelytra very sharp with distinct strigil in form of very small, regular denticles distributed along its entire length. Corium surpassing base of mesotergite IV; lateral margins of hemelytra nearly straight; posterior margin horizontally truncated, without any rudiment of membrane; radial vein elevated.

Pygophore ( Fig. 2 ) similar as in D. alboarcuatus sp. nov.; its ventral two-thirds more strongly gibbous in lateral view, not divided by furrow.

Punctation. Pronotal lobe very coarsely punctate, punctation of scutellum and clavus less distinct. Corium with rows of black punctures along cubital vein; costal margin with coarse but colourless punctures; rest of corial surface with smaller, scattered black punctures.

Pilosity. Antennomeres 1-3 with coarse black pubescence; rest of body with longer, erect, white pubescence, only on mesotergites slightly shorter and more adpressed.

Measurements (all in mm). Male (holotype, brachypterous). Body length 5.26; head: length 0.86, width (including eyes) 1.13, interocular width 0.76; lengths of antennomeres: 1 – 0.86, 2 – 0.86, 3 – 0.51, 4 – 1.08; pronotum: length 1.03, width 1.67; scutellum: length 0.73, width 0.97; corium: length 1.57, width 0.97.

Differential diagnosis. See above for differences from the closely related D. alboarcuatus sp. nov.

Etymology. The species epithet is the Latin adjective parvulus (= minute), referring to the small size of this species.

Distribution. Southern Thailand, Phetchaburi province.

Figures

Figs. 1-6. 1-2 – Delacampius parvulus sp. nov. (holotype, J, 5.26 mm): 1 – habitus, 2 – pygophore, dorsal view; 3 – D. alboarcuatus sp. nov. (holotype, J, 6.97 mm); 4 – D. siberutensis sp. nov. (J, 7.50 mm); 5 – Iphita fasciata sp. nov. (holotype, ♀, 16.47 mm); 6 – I. fimbriata (Stål, 1863) (♀, 14.50 mm). Photo: L. Dembický (1, 3-6) and J. Kabíček (2).