Nothocyphon amphora

Zwick, Peter, 2015, Australian Marsh Beetles (Coleoptera: Scirtidae). 7. Genus Nothocyphon, new genus, Zootaxa 3981 (3), pp. 301-359 : 332

The amphora -group

T9 strongly reduced, in preparations often barely perceptible. The anteriorly truncate penis resembles an amphora , with handles formed by the abruptly outcurving parameroids (e.g., Figs. 83, 85 : pb). The trigonium is basally wide, then restricted to a long bottleneck, the tip mostly again wider. The flat band-like parameroids are shorter than the apparently rigid trigonium which is not visibly articulated with the pala. There is a bracket-like transverse sclerite of uncertain homology, possibly the tegmen. The parameres are independent from it, separate, each with a basal rod and a caudal plate of variable form, armed with spines. Females (known only of N. armstrongi ): S7 with two areas with micropores and fine canals ( Fig. 89 ). The apodemes of S8 are anteriorly connected by a ring (not shown). Prehensor with two large strongly spinose sclerites ( Fig. 90 ).

The few species live in the southeast of Australia and were rarely collected.

Figures

FIGURES 82 – 86. Nothocyphon amphora - group, males, penis, parameres and S 9, superimposed: 82, N. isolaeregis. — 83, N. amphora. — 84, N. pacificus, the holotype; to the right, paramere of the paratype. — 85, N. alces. — 86, N. isolaeregis, T 8 and S 8. 82 − 85 to the same scale. Abbreviations: pb, paramere bases; T 9, apodeme of T 9.

FIGURES 87 – 90. Nothocyphon amphora - group, N. armstrongi. Male: 87, penis, parameres and S 9 of the male holotype; 88, the same of a paratype. Female: 89, S 7, with enlarged detail of porous area; 90, prehensor, with enlarged detail of one of the toothed ridges. 87, 88, 90 to the same scale.