Silhouettanus tinnulus, Hill, Lionel, 2014

Hill, Lionel, 2014, Revision of Silhouettanus with description of nine new species (Hemiptera: Heteroptera: Schizopteridae), Zootaxa 3815 (3), pp. 353-385 : 374

Silhouettanus tinnulus sp. n.

( Figs 11–13 , dimensions in Table 1 )

Type material. Holotype: T189835, mac. ♂, NEQ, Bell Peak North, 10km E Gordonvale, 900–1000m, 13 Oct 1982, Monteith, Yeates and Thompson, pyrethrum knockdown in rainforest, on four slides, in QM.

Description. Brown with one pale band (base of basal cell and distal part of clavus pale cream but distal part of membrane not pale). L4 long, ratio labial segmental lengths 30:22:18:48. Metanotum (metascutellum) almost twice as long as other species described here ( Fig. 11B ). Costal lobe wide; divergence of R+M from Sc basal; cell R <discal cell, divergence of M from R is distal to basal cell, less than one third of area of cell R is distal to apex of discal cell; vein setae medium; basal angle of trapezoidal cell more acute than other species described here; 1V joining Cu opposite tornus; density of general papillae in hexagonal mosaic of wings high and partially obliterating hexagonal pattern. T8 not produced at either end; left anophoric process long, almost straight, projecting posteriorly almost to margin of capsule; right anophoric process is long, curved strut embracing genital capsule laterally; left paramere unresolved, possibly with large distal lobe; right paramere probably short, without elongate distal lobe; one conjunctival sclerite possibly bearing rugose, lobate process; second conjunctival sclerite possibly with short spine (spine alternatively originating from base of vesica); vesica one sclerotized coil.

Notes. Several macrosetae occur near the base of the costal lobe and may correspond to the cluster of spicules in S. alboclavatus that probably correspond to the ‘rasp’ mentioned by Emsley (1969, p. 9).

Etymology. Latin for ringing, alluding to type locality; adjective.

Figures

FIGURE 11. A – B, Silhouettanus tinnulus male; A, left lateral, inflated by ethanol; B, thorax and abdomen, doral, inflated by ethanol. Abbreviations: AC, anteclypeus; B, bucculae; C, cervicum; fw, fore wing; hw, hind wing; lap, left anophoric appendage; L 2, labial segment 2; mn, metascutellum (metanotum); msp, metepimeral spine; rap, right anophoric appendage.

FIGURE 12. A – G, Silhouettanus tinnulus male; A, dorsal; B, head and pronotum; C, head and prosternum; D, head, ventral; E, prothorax, anterior; F, pterothorax, rightanterolateral, sketch; G, pterothorax, ventral. Abbreviations: m, mesosternal process; me, metendosternite; ms, mesosternal sulcus; msp, metepimeral spine.

FIGURE 13. A – J, Silhouettanus tinnulus male; A, anteclypeus, labrum and labium, dorsal; B, right fore tibia and tarsus; C, hind claw; D, fore wing, dorsal; E, abdomen, ventral, inflated by ethanol; F, right mid coxa and trochanter, anterior; G, right hind tibial apex and tarsus; H, right hind coxa, anterior; I, right fore coxa and trochanter, anterior; J, T 8 and genital capsule, dorsal, slide. Abbreviations: a, anophore; AC, anteclypeus; lap, left anophoric process; lp, left paramere; LR, labrum; L 1 - 4, labial segments 1 - 4; rap, right anophoric process; rp, right paramere; v, vesica.