Macrodaruma brevinaso, Constant & Pham, 2014

Constant, Jérôme & Pham, Hong Thai, 2014, A new species of Macrodaruma Fennah, 1978 from Northern Vietnam (Hemiptera: Fulgoromorpha: Issidae), Belgian Journal of Entomology 22, pp. 1-8 : 1-8

Macrodaruma brevinaso sp. nov.

Figs 1 A–E , 3 A–E

ETYMOLOGY. The species name derives from the Latin words brevus (adj.) meaning short, and naso meaning nose. It refers to the shorter vertex compared to the other species, M. pertinax Fennah, 1978 .

TYPE MATERIAL EXAMINED: Holotype ♂ (dissected, right hind wing mounted): [Coll. I. R. Sc.N.B., Vietnam, Tam Dao N. P., 21°31’N 105°33’E, 25-30.VI.2011 day collecting, Leg. J. Constant & J. Bresseel, I.G.: 31.993] ( RBINS)

DIAGNOSIS. The species is easily recognized by the frons and vertex both elongate, but less so than in M. pertinax Fennah, 1978 .

DESCRIPTION. LT: ♂ (n = 1): 7.7 mm.

Head: mainly olivaceous-yellow with short cephalic process ( Figs 1 A, B ). Vertex elongate and narrow, deeply grooved ( Fig. 1 D ) with sides elevated and laminate ( Fig. 1 B ); black-brown markings near apex ( Fig. 1 D ). Genae with horizontal black line from uper margin of eye to apex of head ( Fig. 1 B ). Frons elongate with slightly elevated median red line extending to apex of clypeus; sides of frons black on apical half ( Fig. 1 E ); apex of frons and of red line turning to black ( Fig. 1 E ). Scape short, ring-shaped; pedicel bulbous ( Fig. 1 E ). Ratio LV/BV = 1.7; LF/BF = 1.96.

Thorax: olivaceous-yellow ( Figs 1 B, D, E ). Pronotum very short with posterior margin and discal carinae laminate ( Fig. 1 D ); disc hollowed with median groove on anterior half ( Fig. 1 D ); centre of disc and broad line along dorsal margin of lateral lobes brown ( Figs 1 B, D, E ). Mesonotum short, smooth with transverse bisinuate carina along anterior margin ( Fig. 1 D ). Tegulae brown-black ( Figs 1 B, D ).

Tegmina: ( Figs 1 A, B ) olivaceous-yellow, broadly semicircular, subcoriaceous. Venation reticulate with main longitudinal veins barely distinct basally and numerous cross-veinlets. Costal margin very narrowly black along basal third. Apical margin bordered with narrow black-brown line. Black-brown spot near sutural margin at level of nodal line.

Hind wings: ( Fig. 1 C ) brown, unilobed, with veins darker, slightly shorter than tegmina. Venation reticulate with main longitudinal veins distinct basally and numerous cross-veinlets. Costal margin strongly sinuate.

Legs: ( Figs 1 A, B ) elongate and slender, olivaceous yellow. I and II with numerous small brown dots and with longitudinal brown line on tibiae ventrally. Tibiae III with 2 lateral spines on apical 1/3 and 6 apical spines.

Genitalia ♂: pygofer higher than broad and with posterior margin sinuate in lateral view, slightly broader in middle ( Fig. 3 A ). Gonostyli subtriangular in lateral view ( Fig. 3 A ); dorsal process spoonshaped with latero-basal hook-shaped spine directed ventro-anteriorly ( Fig. 3 A ). Anal tube 1.25 times longer than broad, dorso-ventrally flattened with sides broadly rounded and apex concave ( Figs 3 A, B ); postero-lateral angles slightly projecting in dorsal view ( Fig. 3 B ). Dorsal lobe of phallobase with basal hook-shaped processes baso-laterally ( Fig. 3 C ); strongly inflated dorsally and with apical folded overlaping laminae ( Figs 3 C, D ). Ventral lobe of phallobase spatulate; bifid with minute tubercles apically ( Figs 3 D, E ).

BIOLOGY. M. brevinaso sp. nov. was collected on lower vegetation, in moist evergreen low mountain forest together with specimens of M. pertinax Fennah, 1978 . Typical biotope for those species is illustrated in GNEZDILOV & CONSTANT (2012).

Note: it is possible that the main colour of living specimens is green rather than olivaceous-yellow as was shown for M. pertinax by GNEZDILOV & CONSTANT (2012).

Figures

Figs 3 A–E. Macrodaruma brevinaso sp. nov., genitalia ♂. A, pygofer, anal tube and gonostyli, left lateral view. B, anal tube, dorsal view. C, phallic complex, left lateral view. D, phallic complex, dorsal view of apical half. E, phallic complex, postero-ventral view. An: anal tube; G: gonostyli; Py: pygofer. Scale 1mm.

Figs 1–2. 1. Macrodaruma brevinaso sp. nov., holotype, total length: 7.7 mm. 2. Macrodaruma pertinax Fennah, 1978, total length: 8.5 mm. A, habitus, dorsal view. B, habitus, right lateral view. C, right hind wing. D, head and thorax, dorsal view. E, frons, normal view.