Charagochilus flavipes (Distant, 1904) Gapon, D. A., 2014

Gapon, D. A., 2014, Revision of the genus Polymerus (Heteroptera: Miridae) in the Eastern Hemisphere. Part 1: Subgenera Polymerus, Pachycentrum subgen. nov. and new genus Dichelocentrum gen. nov., Zootaxa 3787 (1), pp. 1-87 : 52-53

1. Charagochilus flavipes (Distant, 1904) comb. nov.

( Figs 19 H ; 20 D, E ; 21 C, D ; 25 C, D ; 41 A )

Poeciloscytus flavipes Distant, 1904a: 274 .

Polymerus flavipes Carvalho, 1959: 236 .

Material examined. Australia, Queensland, Townsville , 19 Feb. 1902, F.P. Dodd, 2 males *, 1 female * ( BMNH). First description of male and female terminalia. Right paramere is not studied .

Left paramere ( Fig. 20 D, E ). Sensory process large, broadly triangular from posterior view. Hypophysis from lateral view strongly dilated, its inferior margin strongly convex, anterio-inferior angle rectangular, superior margin rather strongly convex in posterior part, concave before apex, the latter pointed, slightly curved interiad.

Theca with apical margin having only one large triangular sclerotised blade.

Vesica ( Fig. 21 C, D ). Secondary gonopore rather small, lies at left wall of vesica, with complete ring of concentrically curved spinulae. Anterior branch of anterior right lobe of vesica moderately long, directed anteriad, with obtuse apex. Inferior surface of the latter with small membranous rounded tubercle. Anterior spicule as in Ch. pallidicollis , short, rather wide, directed upwards and to right, with obtuse apex and membranous anterior wall. Right branch of anterior right lobe looks like wide, weakly convex lump. Posterior part of vesica large, elongated along longitudinal axis of aedeagus, expanded in basal part and tapering upwards. Medial right lobe short and broad, not branched. Its apex wide, directed anteriad, to left and curved downwards, hanging over secondary gonopore. Short distal end of posterior branch of baso-apical sclerotised band lies on concave right wall of medial right lobe. Superior surface of medial right lobe with wide medial spicule directed posteriad. Anterior margin of spicule base slightly bent upwards, serrated. Apex of spicule dilated, roundish, at right side forms elevated plate curved spirally counterclockwise. Short acicular posterior spicule directed anteriad lying behind medial right lobe. Anterior and posterior left lobes absent. Apex of posterior part of vesica looks as two small tubercles. Anterior one narrowed basally, with rounded dilated apex, curved to right and slightly downwards. Posterior tubercle smaller, slightly elongated, curved to right. Posterior right lobe vestigial, with two short branches. Anterior branch looks like small conical tubercles directed upwards and located just below and slightly anteriorly of anterior tubercle of posterior vesical apex. Very small posterior branch of posterior right lobe lies behind base of anterior branch, under tubercles of posterior vesical apex and directed to right and slightly posteriad. Left wall of posterior part of vesica with sclerotised left carina, rather wide and high, serrated anteriorly, and continuing posteriad as wide rugose sclerotised band. Posterior part of this band branches like inverted Y. One of its branches narrow, serrated, extends upwards till superior surface of anterior tubercle on posterior vesical apex. Second branch wide, narrowing posteriad, its ends lies on posterior wall of vesica. Posterior wall of vesica membranous; right posterior wall in base with small sclerotised tubercle covered with microtrichia. Small, weak sclerotised triangular field lies before this tubercle. Left posterior wall of vesica in base with rather large rounded and strongly foveate sclerite with four concentric fine ridges.

Gynatrium ( Fig. 25 C, D ). Ventral labiate plate forms short horizontal fold directed posteriad in the cavity of gynatrium. Dorsal labiate plate with large roundish, slightly convex area in middle. Sclerotised band connecting round sclerites rather narrow, interrupted in middle. Its internal ends lye on each side of convex area mentioned above. External margins of ring sclerites without triangular plates. Tectal sclerites separate, wide and rather short. Their internal margins almost straight, strongly connivent. Posterior margins of tectal sclerites not curved upwards, with small triangular prominences. Dorsal sac absent. Inner horizontal and transverse folds absent. Lateral oviducts directed posteriad or laterad, their bases lye near posterior margin of gynatrial roof. Medial lobe absent. Posterior margin of roof with slightly convex lateral parts. Interramal sclerite typical for Charagochilus , with small triangular protrusion in middle of dorsal margin and with large trapezoidal notch on ventral one. Anterior walls of internal lobes membranous, dorsal margin of their openings with narrow sclerotised edging laterally. Medial process, dorsal structure and lateral lobes entirely absent. Anterior and posterior vestibular sclerites absent.

Taxonomic notes. This species is transferred into the genus Charagochilus based on the following characters: collum about 1.5 times as long as width of first antennal segment ( Fig. 41 A ); punctures on the pronotum deep and rather large; short, not strongly pointed preocular part of head; claw without denticle; left paramere with flattened laterally, dolabriform hypophysis; apical margin of theca with single blade; vesica the left serrate carina, medial right lobe bearing lamellar spicule, with the posterior spicule lies between bases of medial right and posterior right lobes; without anterior and posterior left lobes; secondary gonopore with complete ring of concentrically curved spinulae; gynatrium without the inner horizontal fold, transverse fold, dorsal sac, medial lobe and medial process; and ring sclerites without triangular plates on the external margins.

Figures

FIGURE 19. Structure of tarsus and pretarsus. A–K, tarsus; L– P, claw. A, Polymerus unifasciatus; B, P. carpathicus; C, P. holosericeus; D, Charagochilus gyllenhalii; E, Ch. spiralifer; F, Ch. angusticollis; G, Ch. pallidicollis; H, Ch. flavipes comb. nov.; I, Ch. bimaculatus comb. nov.; J, Ch. obscuratus comb. nov.; K, Ch. consanguineus comb. nov.; L, P. carpathicus; M, Dichelocentrum ornatifrons comb. nov.; N, Proboscidocoris nitidus; O, Pr. feanus; P, Pr. solitus comb. nov. Scale bare: 0.28 mm

FIGURE 20. Parameres of Charagochilus species. Right (A, F, I, L, O) and left (B–E, G, H, J, K, M, N, P, Q) parameres. A- C, Ch. spiralifer; D, E, Ch. flavipes; F–H, Ch. bimaculatus; I–K, Ch. obscuratus; L–N, Ch. consanguineus comb. nov.; O–Q, Ch. aureus comb. nov. Left (B, D, G, J, M, P) and posterior (C, E, H, K, N, Q) view. Scale bare: 0.14 mm.

FIGURE 21. Vesica of Charagochilus species. A, B, Ch. spiralifer; C, D, Ch. flavipes comb. nov. Left (A, C) and right (B, D) view. ab.bab—anterior branch of baso-apical sclerotized band; arl—anterior right lobe; as—anterior spicule; lsc—left serrate carina; mrl—medial right lobe; ms—medial spicule; pa—posterior apex of vesica; pb.bab—posterior branch of baso-apical sclerotized band; prl—posterior right lobe; ps—posterior spicule. Scale bare: 0.14 mm.

FIGURE 25. Inner female genitalia of Charagochilus species. A, B, Ch. spiralifer; C, D, Ch. flavipes comb. nov. Gynatrium, dorsal view (A, C), posterior wall of gynatrium(B, D), ventral view. ts—tectal sclerites. Scale bare: 0.14 mm.

FIGURE 41. Charagochilus species, head and thorax. A, Ch. flavipes comb. nov.; B, Ch. bimaculatus comb. nov.; C, Ch. obscuratus comb. nov.; D, Ch. madagascariensis comb. nov.; E, Ch. consanguineus comb. nov.; F, Ch. aureus comb. nov.