Silhouettanus lintrarius, Hill, Lionel, 2014

Hill, Lionel, 2014, Revision of Silhouettanus with description of nine new species (Hemiptera: Heteroptera: Schizopteridae), Zootaxa 3815 (3), pp. 353-385 : 365-369

Silhouettanus lintrarius sp. n.

( Figs 6 H–J, dimensions in Table 1 )

Type material. Holotype: T189828, mac. ♂, SEQ, 26º10´S 151º58´E, Boat Mountain EP [Conservation Park], 580m, 14 Dec 1994, Monteith and Thompson, pyrethrum knockdown, left fore wing and genitalia on two slides, remainder in vial, in QM.

Description. Brown without pale bands. Ratio of lengths of labial segments unknown. Costal lobe wide; R+M diverges from Sc basally so that subcostal cell is elongate; cell R <discal cell, divergence of M from R distal to basal cell, less than half area of cell R is distal to apex of discal cell; 1V joins Cu opposite tornus; vein setae medium. T8 not produced at either end; left anophoric process with an incompletely spiraled spine projecting posteriorly halfway to margin of genital capsule; right anophoric process not evident in slide mount; left paramere with bulbous base and short, rounded distal lobe; right paramere with irregular bulbous base extending halfway and a broadly spinous, weakly curved distal lobe; processes of conjunctival sclerites not resolved; vesica elongate, with sclerotoized basal flange (helicoid sclerite?) and several, slender less sclerotized loops.

Notes. Boat Mountain is a flat-topped ridge covered in dry rainforest and open eucalypt woodland. Most of the vegetation was originally hoop pine, Araucaria cunninghamii rainforest but now is a mixture of softwood scrub and vine thicket following logging. This species is distinguished from S. monteithi , which occurs only 4km away, by shorter left paramere and absence of right anophoric process. It is possible that observation of these two characters was flawed by artefacts of slide preparation. Both possess a multicoiled vesica.

Etymology. Latin for boatman, alluding to the type locality; noun in apposition.

Figures

FIGURE 6. A – G, Silhouettanus insuloparvus male; A, labium and antennal bases; B, antennomeres 1 – 2; C, metendosternite, ventral; D, right midleg; E, pterosternum; F, metepimeral spur, ventral; G, T 7, slide, ventral; H – J, S. lintrarius; H, fore wing dorsal; I, T 8, genital capsule with aedeagus half extracted, slide, dorsal; J, remainder of vesica. Abbreviations: lap, left anophoric process; lp, left paramere; m, metasternal process; ms, mesosternal sulcus; rp, right paramere; v, vesica; II, midcoxal cavity.