Nothocyphon nungatta, Zwick, Peter, 2015

Zwick, Peter, 2015, Australian Marsh Beetles (Coleoptera: Scirtidae). 7. Genus Nothocyphon, new genus, Zootaxa 3981 (3), pp. 301-359 : 323

Nothocyphon nungatta , n. sp.

( Fig. 49 )

Type material: 1 ♂ holotype, 1 possibly conspecific ♀ (no type status) originally mounted on one card: NSW nr Nungatta Creek [~ 37.19S 149.43E] 58 88083N 557 20893E [sic!] 13.2.0 0 \ J&R Miller ( SAMA).

Habitus. Elongate oval, BL 2.8mm, BL/BW ~1.7. Granular punctures on head fine, a little larger on pronotum, spaced, integument shining. Normal elytral punctures fine and dense, although distinctly larger than on pronotum. Dorsal face dark brown, head darkest. Antennal flagellum infuscate, flagellar segments barely 2x as long as wide at apex. Pilosity dark, semi-erect.

Male. Segments 8 and 9 typical of the group, unmodified, lobes of S9 visible under the penis. Pala longer than half total length of penis, the lateral sclerites lean against each other but diverge again slightly anteriorly. The parameroids are simple flat lobes a little longer than the trigonium. Laterally they are intimately connected with surrounding membranes. The trigonium narrows caudally, it is tongue-shaped, the apex is bluntly rounded and armed with few small denticles. The tegmen (torn on one side) is a narrow sclerite band laterally supporting large complex parameres. The curved rod-like base divides into a medial lobe with huge teeth separated by deep rounded notches; the apex of this portion seems to taper dorsally from the penis. Near the forking point the basal rod supports a rounded unarmed medial process and a curved lateral one with an apical row of stout teeth (mp in Fig. 49 ). The outer paramere lobe is membranous except for a small distal area supporting a medially directed short process with a crown of irregular sharp teeth ( Fig. 49 , lp).

Female (presumed). Resembles the male. Abdominal sternites unmodified, the rods of S8 anteriorly separate. The ovipositor is of the standard build, bursellar sclerite or prehensor not found.

Note. Structural details of the parameres remain unknown, the complex folding of the two partly overlapping lobes was not disentangled.

Etymology. Named after the type locality; a noun in apposition.

Figures

FIGURES 48 – 51. Nothocyphon lanceolatus - group, males. N. biserratus: 48, penis and parameres. — N. nungatta, holotype: 49, penis, parameres and S 9, superimposed, with enlarged details of armature on parameres. — N. taeniatus: 50, terminalia of paratype, ventral; 51, segment 9 and genitalia of holotype, superimposed. All to the same scale, except the insets in 49 which are to a different scale, the same for both. Apodemes of S 9 shown in black, sclerotized medio-ventral lobe of paramere (mv) stippled. Additional abbreviations: c, a lateral crest delimiting the window; dl, dorsolateral lobe of paramere; lp, lateral process; mp, medial process; p, projection from the window; w, window-like opening in front of the trigonium base.