Pachyrhynchus elenae, Rukmane, 2016

Rukmane, Anita, 2016, Six New Species Of The Genus Pachyrhynchus Germar, 1824 (Coleoptera: Curculionidae) From The Philippines, Acta Biologica Universitatis Daugavpiliensis 16 (1), pp. 77-89 : 82-84

Pachyrhynchus elenae sp. n. ( Fig. 4 )

Type material. Holotype, male: ‘’ Philippines, Mindanao Isl., Cotabato, Mt. Apo, I. 2015, local collector leg. ‘’ (typed on white card); [ex. prof A. Barševskis coll.] (typed on white card); HOLOTYPE / Pachyrhynchus elenae / Rukmane 2016 / Det. Rukmane 2016 (typed on red card), ( DUBC).

Distribution: Philippines, Mindanao Island.

Description. Measurements: LB: 16.8; LE: 9.0; WE: 7.0; LP: 5.1; WP: 5.3; LR: 2.4; WR: 2.5.

Habitus dorsally as in Fig. 4A ; laterally as in Fig. 4B .

Body and legs black; body surface with pale greenish, shiny scale spots. Head black, massive, latteraly under eyes, on genae and on lateral side of rostrum with wide green scales. Eyes not convex, black. Rostum with band of transverse scales on apical bulge, with deep transverse medial depression. Antenna black, antennal scape short, remaining antenomeres with short sparse pubescence and long setae, apical antennomere club-shaped.

Pronotum massive, subspherical, widest before middle, with very fine sparse punctation, in median portion with transverse line which circumscribe latteraly two bare black spots and one longitudinal line of pale scales. Longitudinal line extending straigth to basal margin of pronotum and forming triangular of pale green scales.

Elyrta with several longitudinal and median transverse line of pale scales crossing longitudinal lines; basal part of each elytron with two or three short lines and four long lines, extending to apical margin of elytron, four short lines at apical part of each elytron.

Legs wide, with strong clavate femori. Tibiae strongly incurved apically. Middle femori covered with short setae and scales along posterior margins. Tibiae with sparse pubescence and long setae.

Scutellum small, rounded apically.

Aedeagus elongate, in lateral view curved. Lamella strongly elongalte, subtriangular, slightly rounded apically ( Fig. 4E, F ).

Male unknown.

Differential diagnosis. Pachyrhynchus elenae sp. n. is similar in general apperance to P. phaleratus Waterhouse, 1841 ( Fig. 4C, D ). The new species is easily distinguished from P. phaleratus by the shape of aedeagus, which is longer and less curved lateraly and by the bigger number of longitudinal lines on each elytron ( Fig. 4G, H ). Pronotum of P. elenae sp. n. widest before the midian part (pronotum of P. phaleratus widest in the middle).

Etymology. This species is named after my mother, Elena Zubko (Daugavpils, Latvia) in appreciation of support.

Figures

Fig. 4. A, B: Pachyrhynchus elenae sp. n. habitus dorsal and lateral view, E, F: aedeagus dorsal and lateral wievs; C, D: Pachyrhynchus phaleratus Waterhouse 1841 habitus dorsal and lateral view, G, H: aedeagus dorsal and lateral views.