Parischnogaster curviclypeus Selis, 2018

Selis, Marco, 2018, Notes on the subfamily Stenogastrinae (Hymenoptera: Vespidae) in the Philippine Islands, with description of nine new species, Zootaxa 4514 (3), pp. 383-410 : 397-398

Parischnogaster curviclypeus Selis , sp. nov.

( Figs. 38–43 )

Diagnosis. The male of this species can be recognized by having: T2 with long basal petiole, clypeus with basal half strongly bulging and apical half depressed, third segment of mid tarsus with indistinct angle on anterior margin.

Material examined. HOLOTYPE, ♂ labeled “ Philippines, Mindoro , Baco / V.2015 / Leg. local collector // Parischnogaster curviclypeus / Selis, sp. nov. / HOLOTYPUS ♂ / Det. Marco Selis 2018” ( MSNVE).

Description. Male. Body length 10.7 mm; fore wing length 7.8 mm.

Head 1.3× as wide as long in frontal view ( Fig. 40 ). Clypeus 1.2× as wide as long, pointed apically, in lateral view with a strong bulge in dorsal half and then depressed ventrally ( Fig. 41 ), free apical margins crenate. Distance between posterior ocelli larger than ocellar diameter. Mandibles tridentate, inner tooth very short. Antenna clavate, expanding apically, antennal scape 2.5× as long as its apical width, F1 2.6× as long as its apical width, F2–F3 slightly longer than wide, F4–F7 about as long as wide, F8–F10 wider than long, F11 bullet shaped, 1.2× as long as its basal width. Temples very short in dorsal view. Vertex distinctly depressed behind posterior ocelli.

Mesoscutum as long as width between tegulae, strongly convex in lateral view, notaulices present as shallow furrows, parapsidal sulci clearly marked and long. Scutellum weakly convex. Metanotum nearly flattened, entirely vertical. Propodeum weakly convex dorsally in lateral view, longitudinal median furrow deep for entire length ( Fig. 42 ). Lateral faces of mesosoma weakly depressed posteriorly.

T1 8× as long as its maximum width, in lateral view almost linear from base to apex except weak apical convexity, in dorsal view distinctly expanded apically. T2 with long petiole at base, petiole 1.7× as long as wide. S7 with apex roundly angled laterally, horizontally bent, with median longitudinal depression.

Mid femur basally bulging below. Anterior lobe of segment 2 of mid tarsus expanded and pointed apically, with reduced apical spines. Anterior lobe of segment 3 of mid tarsus with indistinct basal angle ( Fig. 43 ).

Clypeus densely punctured on basal bulge, apical depression with sparser punctures. Frons and vertex densely reticulate. Pronotum with small flat bottomed punctures, interspaces forming reticulation, posteroventral border covered by irregular striae up to pronotal lobe. Mesoscutum densely reticulate. Scutellum and metanotum with fine dense punctures. Posterior face of propodeum obliquely striate, striae running from middle line to lateral faces where they continue. Dorsal part of mesepisternum transversely striate, ventral part dull and microreticulate. Metaepisternum smooth with some transverse striae. Metasoma smooth with dense micropunctures. Clypeus with dense silvery pubescence, frons up to anterior ocellus with dense golden pubescence. Mesosoma with sparse short golden setae, lateral depression of metepisternum and propodeum with dense gold-reddish setae. T1 with lateral long white setae on basal third, rest of metasoma with dense very short whitish setae, some longer brownish setae on S3–S6 and on apical margin of S7.

Color. Black; following parts yellow: mandible, anterior face of scape, dorsal face of pronotum, long lateral line and submedian spot on pronotal collar, long triangular markings between notauli, rectangular spot on posterior margin of mesoscutum, large transverse spots on scutellum, posteriorly incised band on anterior half of metanotum, posterior face of propodeum except median furrow and subquadrate basal spot, triangular spot on mesepisternum below base of wing, lunate mark below transverse furrow, posterior margin of dorsal plate of metaepisternum, thin lateral lines on anterior half of apical expansion of T1, lateral triangular markings on petiole of T2, basolateral spots on T3, basal band on T4–T6, lateral spots on S2–S4, lateral spots on all coxae, apical third of fore femur, apical spot on mid and hind femora, outer face of fore and mid tibia, basal spot on hind tibia, basal half of fore basitarsus; inferior face of flagellum ferruginous.

Female. Unknown.

Distribution. Philippine Islands: Mindoro.

Etymology. The specific name of this species is in reference to the strongly curved clypeus of the male.

Figures

FIGURES 38–43. Parischnogaster curviclypeus Selis, sp. nov., ♂. 38, Habitus in dorsal view. 39, Habitus in lateral view. 40, Head in frontal view. 41, Head in lateral view. 42, Propodeum in posterodorsal view. 43, Mid tarsus in dorsal view.