Kamabrachys danielsi Constant 2023, gen. et sp. nov.

Kamabrachys danielsi gen. et sp. nov.

urn:lsid:zoobank.org:act: 1BD99E08-6901-43C7-83A7-5D96FA0A1BE9

Figs 5A, 22–27

Diagnosis

The species can be recognized by the following combination of characters:

(1) posterior margin of the lateroventral lobes of the pygofer (lvl) oblique and slightly sinuate in lateral view (Fig. 24A) and strongly tapering posterad in ventral view (Fig. 24C), inner margin of lobes concave in ventral view (Fig. 24C), ventral margin rounded in caudal view (Fig. 24E);

(2) posterior margin of laterodorsal process of gonostylus (ldg) roundly emarginate, leaving a widely open angle between laterodorsal process and ventral process of gonostylus (vp) in lateral view (Fig. 24A);

(3) crest of furcate process of periandrium (cfp) only along distal portion and not merging basally (Fig. 26D), in lateral view, tapering in distal portion (Fig. 26E);

(4) laterodorsal process of periandrium (ldp) tapering in distal portion, sinuate, twisted and curved laterodorsad, slightly shorter than lateroventral process (lvp) (Fig. 26D–E);

(5) lateroventral process of periandrium (lvp) dorsoventrally flattened only in basal portion and strongly curved laterad and tapering distally (Fig. 26D–F);

(6) apicodorsal process of aedeagus (adp) weakly sinuate, weakly dilated then tapering distally and shorter than apicoventral process (avp) (Fig. 26A–C);

(7) posterior wing with weakly marked whitish marking along sutural margin (Fig. 22E).

Etymology

The species is dedicated to Greg Daniels who participated in the collecting of a large part of the type material.

Type material

Holotype AUSTRALIA • ♂; [Queensland], 3 km NW of Archer River Crossing; 13°24′ S, 142°55′ E; 9 Apr. 1989; G. and A. Daniels leg.; “ 3 km NW Archer River x-ing, Qld, 13°24’S 142°55’E, 9 Apr 1989, G. and A. Daniels”, “UQIC Reg. #43799”; QM.

Paratypes AUSTRALIA • 1 ♀, photographed; [Queensland], 6 km NE of road junction, Claudie River district; [12°43′ S, 143°18′ E]; 27 Jun. 1982; G. Daniels and M.A. Schneider leg.; “6km NE road junction Claudie Riv. district, Qld, 27 Jun 1982, G. Daniels M.A. Schneider”, “UQIC Reg. #43968”; QM • 1 ♀; [Queensland], 6 km NE of road junction Claudie River district; 12°43′ S, 143°18′ E; 6Jul. 1982; G. Daniels and M.A. Schneider leg.; “6km NE road junction Claudie Riv. district, Qld, 6 July 1982, G. Daniels M.A. Schneider”, “UQIC Reg. #43949”; RBINS • 1 ♀; [Queensland], 30 km W of Fairview, Cape York Peninsula; 15°29′58″ S, 143°59′50″ E; 10–11 Jul. 1982; M.A. Schneider and G. Daniels leg.; “30km W of ‘Fairview’, Cape York Pen., Qld, 10-11 July 1982, M.A. Schneider, G. Daniels”, “UQIC Reg. #43950”; QM • 1 ♀; [Queensland], Windmill, Killarney-Dixie Road, 12 km NNW of Killarney [Homestead]; 15°19′34″ S, 143°26′56″ E; 18 Jul. 2015; [altitude] 135 m; Melaleuca / Eucalyptus woodland; Daniels, Carr and Greene leg.; “Qld, 15.326°Sx143.449°E, Windmill, Killarney-Dixie Rd, 12km NNW Killarney HS, 18 Jul. 2015. 135m. 38380, Daniels, Carr & Greene; Melaleuca / euc woodland.”; QM • 1 ♂, 1 ♀; [Queensland], Claudie River; [12°49′22″ S, 143°20′47″ E]; [Nov. 1912–Feb. 1913]; J.A. Kershaw leg.; “Claudie R., N. Q., Coll. J. A. Kershaw, 11/12-2/13.”; MVMA • 1 ♀; [Queensland], Torres Strait, Prince of Wales Island; [10°40′32″ S, 142°11′18″ E]; 28 Jun. 1969; Neboiss leg.; “Prince of Wales Isl., Torres Strait, 28-6-1969, Neboiss”; MVMA • 1 ♂; same locality as for preceding; 29 May 1969; Neboiss leg.; “ Prince of Wales Isl., Torres Strait, 29 May 1969, Neboiss”; RBINS • 1 ♀; [Queensland], Claudie River; [12°49′22″ S, 143°20′47″ E]; [no date]; A. and F.R. Zietz leg.; “Claudie R., A. & F.R. Zietz “; SAM • 1 ♂, 1 ♀; [Queensland], Split Rock, 13 km SE of Laura; [15°38′42″ S, 144°30′27″ E]; 24 May 1993; escarpment with open woodland; B. and M. Baehr leg.; “Australien-NQlnd, Split Rock, 13 km se Laura, Felsen mit offenem Woodland, 24.5.1993, leg. B. & M. Baehr”; ZSM • 1 ♂, 1 ♀; same collection data as for preceding; RBINS • 1 ♂, 1 ♀; [Queensland], 1–5 km S of Cape York; [10°42′40″ S, 142°31′46″ E]; 19–20 May 1993; open woodland; B. and M. Baehr leg.; “Australien-NQlnd, 1-5 km s. Cape York, offenes Woodland, 19-20.5.1993, leg. B. & M. Baehr”; ZSM • 1 ♀; Queensland, 13 km W of Musgrave; 14°48′ S, 143°23′ E; 26 Apr. 1989; G. and A. Daniels leg.; “13 km W Musgrave, Qld, 14°48’S 143°23’E, 26 Apr 1989, G. and A. Daniels”, “UQIC Reg. #43779”; QM • 1 ♀; Queensland, Lockerbie Scrub, Cape York; [10°48′07″ S; 142°28′31″ E]; 14–18 Apr. 1973; G.B. Monteith leg.; “Lockerbie Scrub, Cape York, N. Qld., 14-18.iv.1973, G. B. Monteith”; QM.

Description

MEASUREMENTS AND RATIOS. LT: ♂ (n = 6): 10.69 mm (10.22–11.01), ♀ (n = 10): 11.40 mm (10.75–11.93); BV/LV: ♂ (n = 1): 3.54, ♀ (n = 1): 3.16; BF/LF: ♂ (n = 1): 1.49, ♀ (n = 1): 1.35; LP+LM/BT: ♂ (n = 1): 0.80, ♀ (n = 1): 0.79; LM/LP: ♂ (n = 1): 3.03, ♀ (n = 1): 3.21; LTg/BTg: ♂ (n = 1): 2.71, ♀ (n = 1): 2.69; LW/BW: ♂ (n = 1): 1.57, ♀ (n = 1): 1.68.

HEAD (Figs 22A–D, 23A–D). Slightly narrower than thorax. Vertex brown irregularly, rather poorly variegated with black to moderately variegated with black in dark specimens; about 3.2–3.5 times as broad as long, concave with all margins slightly carinate; anterior and posterior margins rounded, nearly parallel. Frons brown irregularly, rather densely variegated with black, more densely black than vertex and mostly black in dark specimens; darker along lateral angles and dorsal margin; dorsal angles marked with a small, yellow-brown subtriangular marking; paler median band at level of base of eyes, three paler spots in a transverse row at level of middle of eye and a narrow paler curved band parallel to dorsal margin; about 1.3–1.5 times as broad as long, slightly convex, slightly rugulose with peridiscal carina slightly marked; upper margin of frons slightly rounded in perpendicular view of frons; lateral margin incurved above lateral projection of frons, slightly rounded to slightly sinuate under the projection. Clypeus brown to reddish brown with median line and regular oblique lines on each side of postclypeus dark brown to black, anteclypeus brown with sides black along outer margin and with median pale reddish-brown line on carina; clypeus reaching mesocoxae, elongate, with median carina on anteclypeus prolongated with obsolete carina on postclypeus; base of clypeus rounded. Labium dark brown, reaching metacoxae, with apical segment as long as broad, acuminate, shorter and slightly more slender than penultimate. Genae pale yellow-brown. Ocelli absent. Antennae brown, not surpassing eye, not visible from above; scape about as long as broad, pedicel subcylindrical, elongate, narrowing towards apex.

THORAX (Figs 22A, C, 23A, C). About 1.25 times as broad as combined length of pro- and mesonotum. Pronotum brown irregularly variegated with black, mostly like vertex; disc weakly wrinkled, carina parallel to anterior margin and 2 obsolete impressed points on disc usually included in a dark marking; slightly excavate behind middle portion of anterior margin; paranotal lobes pale to dark brown. Mesonotum brown irregularly variegated with black, more densely black and generally darker than pronotum, usually with poorly defined black marking in lateral fields; disc weakly wrinkled, median and peridiscal carinae weakly marked; median carina stopped before scutellum. Tegulae bicolour with ventral half black and dorsal half pale brown.

TEGMINA (Figs 22A, C, 23A, C). Pale brown irregularly variegated with black markings; distal portion darker with very small white apical spot; anteapical transverse white line, sometimes reduced to 2 white triangles along margins; usually a squarish black marking in middle of clavus reaching sutural margin or limited to A1vein, rarely or nearly absent, or expanded into a complete transverse band in dark specimens; dark specimens often with second irregular transverse black band at about half-length, more developed along costal margin and often not reaching sutural margin. Flat, elongate, about 2.7 times as long as broad; costal margin weakly rounded along basal fifth, then straight or very weakly rounded to nodal line; apex rounded.

VENATION. Veins ScP+RA and RP separated close to base; first fork of MP very basal, at the level of ScP+RA–RP separation; first fork of CuA slightly before apex of clavus; clavus closed; Pcu and A1 fused at about ¾ of clavus length; Pcu+A1 reaching apical angle of clavus; numerous cells along posterior half of costal margin; numerous cross-veins on apical third delimitating small elongate cells.

POSTERIOR WINGS (Figs 22E, 23E). Basal half yellow-orange narrowly marked with red basally, distal portion and band along posterior margin blackish brown; sometimes a brownish marking extending towards base along vein MP; anal lobe grey-brown; whitish marking along sutural margin between A1 and cubital fold. Well developed, as broad as tegmina, about 1.7–1.8 times as long as broad, rounded apically; anal area well developed; sutural margin weakly trilobous; not reaching apex of tegmina at rest. All main veins visible from base, forked at or after nodal line and forming a few closed cells; few transverse veinlets delimiting elongate cells on apical ¼; veins A1 and A2 sometimes with 2 terminals.

LEGS (Figs 22A–D, F, 23A–D, F). Pro- and mesofemora reddish turning to brown on distal ⅓, mostly brown in dark specimens; pro- and mesotibiae brown with margins darker, mostly dark brown in dark specimens; pro- and mesotarsi slightly paler than corresponding tibia but darker apically; posterior legs brown with apex of tibial and tarsal spines darker. Pro- and mesofemora and tibiae dorsoventrally flattened, elongate and slender; metatibiae with 3 lateral and 10 apical spines; first metatarsomere ventrally with grey pad of microsetae at internoapical angle and two rows of 5 spines. Metatibiotarsal formula: (3) 10/4/0.

MALE TERMINALIA (Figs 24–26). Pygofer (Py) rather short, as high as long and oblique in lateral view (Fig. 24A), about 2.0 times as wide as high in caudal view (Fig. 24E); basal apodeme (bap) slightly elongate, well developed and sclerotized, sinuate in dorsal view (Fig. 24A–C); dorsal portion narrow (Fig. 24A–B); lateroventral lobe (lvl) projecting posterolaterally and rounded but tapering towards the anterior and posterior in dorsal view, more strongly posteriorly (Fig. 24B); in ventral view, tapering and moderately narrowly rounded anteriorly and narrowly rounded posteriorly, rather broadly rounded laterally and with inner margin concave (Fig. 24C); in lateral view mostly obliquely truncate posteriorly, with posterior margin slightly sinuate along upper ⅔ and ventral ⅓ strongly projecting posterad and narrowly rounded, anteroventral angle more or less rounded (Fig. 24A); ventral portion separated from lateroventral lobe by a well-marked, rather narrow depression (Fig. 24C, E); ventral lamina (vlp) about 2.9 times as broad as long with anterior and posterior margins subparallel in ventral view, posterior margin slightly bisinuate with posterolateral angles rounded and moderately projecting posterad (Fig. 24C). Anal tube (An) nearly as long as broad, dorsoventrally flattened (Fig. 24A), oval with base and apex more strongly rounded than side margins; side margins tapering towards apex; apical margin indented in middle (Fig. 24B); paraprocts (pa) at basal ¼, well developed. Gonostyli (G) 1.3 times as broad as long in ventral view (Fig. 24C); ventral process (vp) in ventral view subtriangular, rather short with lateral margin weakly excavate, then rounded apically (Fig. 24C); laterodorsal process (ldg) partly visible in ventral view (Fig. 24C), sinuate in caudal view with mediolateral angle (mla) well-marked (Fig. 24E), mediolateral angle moderately projecting laterally (Fig. 24A, D), posterior margin deeply, roundly emarginate on ventral half in lateral view (Fig. 24A); dorsal hook (dhg) subtriangular in lateral view, with anterior margin weakly concave and posterior margin oblique (Fig. 24A), apically curved laterad (Fig. 24B), sinuate in caudal view (Fig. 24E). Connective (cv) strongly developed, about 1.5 times as long as aedeagus s. lat., with anterior pair of lateral apodemes forming a broad lateral lamina directed posterolaterad and rather broadly rounded apically; posterior pair of apodemes ribbon-like, well developed laterally and sinuate (Fig. 25A–D). Aedeagus s. lat. moderately upcurved with periandrium reaching more or less level of apex of aedeagus s. str. posteriorly (Fig. 25E–I).Aedeagus s. str. (Fig. 26A– C) with apical processes about 8.4 times as long as broad at mid-length; apicoventral process (avp) smoothly tapering towards the posterior and narrowly rounded apically, weakly curved laterad at mid-length in ventral view; apicodorsal process (adp) in dorsal view (Fig. 26A) weakly sinuate, rather weakly inflated, elongate, not very abruptly tapering towards apex in an elongate blunt point, and shorter than apicoventral process. Dorsal periandrium (Fig. 26D–F) with laterodorsal processes (ldp) rather regularly tapering from base to acutely pointed apex, sinuate in dorsal view with apex upcurved, pointing dorsad in lateral view; lateroventral processes (lvp) dorsoventrally flattened on basal ⅔, broadening from base to first ⅓, then gently tapering, curved laterad at distal ¾ towards acutely pointed apex, projecting posterolaterally slightly beyond laterodorsal processes; basomedian processes (bmp) apically roundly blunt in dorsal view and with sides parallel in ventral view; median furcate process (mfp) with furca nearly as long as shaft (Fig. 25I) and moderately upcurved in lateral view (Fig. 26E), dorsal crest (cfp) on apical half of arms of furca, slightly reflexed in dorsal view (Fig. 26D), crest abruptly broadening basally then regularly tapering towards blunt apex and with dorsal margin slightly irregular in lateral view (Fig. 26E), inner and outer lateral walls of furca granulose (Fig. 26D).

FEMALE TERMINALIA (Fig. 27). Abdominal sternite VI (As VI) with sides upcurving in posteroventral view (Fig. 27C); posterior margin in ventral view (Fig. 27B)projecting posteriorly on sides; median subquadrate emargination wide, wider basally (Fig. 27C); subtriangular processes rather elongate, apically rounded and directed mesad and posterodorsad (Fig. 27B–C); emargination between subtriangular processes and lateral projection rather deeply rounded (Fig. 27B–C); processes of furca of sternite VI (FAs VI) pointed, diverging, rather weakly developed and strongly curved posterodorsad (Fig. 27B–C). Inner portion of gonocoxa VIII (Gx VIII) rather strongly curved dorsad (Fig. 27C); posterior margin of gonapophysis (Gy VIII) projecting rather strongly posterad and apically rounded (Fig. 27A–B). Lateroventral excavate membranous fold of gonocoxae VIII between sternite VI and gonapophysis VIII in posteroventral view rather widely open (Fig. 27C). Inner portion of gonapophysis VIII, subtriangular processes and adjacent part of posterior margin of sternite VI, and processes of furca of sternite VI (FAs VI) densely covered in short strong setae (Fig. 27B–C). Gonoplacs (Gp) unilobed, large and semicircular, mostly hiding the anal tube (Fig. 27D). Gonocoxal bases IX (Gb IX) projecting laterally (Fig. 27B–C). Gonapophysis IX (Gy IX) flattened laterally, strongly reflexed posterodorsad and strongly tapering apically (Fig. 27B, D). Anal tube (An) elongate and narrow, curved posteroventrad, v-shaped in cross section beyond anus, lanceolate in dorsal view (Fig. 27A, C).

SEXUAL DIMORPHISM. Female 6–7% larger than male.

Distribution and biology

The species is currently recorded from the northern portion of Cape York Peninsula, in the area north of the latitude of Cape Tribulation, and on Prince of Wales Island in the Torres Strait (Fig. 5A). Bioregion: Cape York Peninsula.

The examined specimens were collected in all months between April and July, and in November. The habitats indicated on the labels are “open woodland” and “ Eucalyptus / Melaleuca woodland” but no specific host plant was recorded.