Chryxus tomentosus Champion, 1899

Gil-Santana, Helcio R., Leavengood Jr., John M., Berenger, Jean-Michel, Martins, David dos Santos & Oliveira, Jader, 2022, A new species of Chryxus Champion, with taxonomic notes on other species of the genus (Hemiptera, Heteroptera, Reduviidae, Chryxinae), ZooKeys 1104, pp. 159-175 : 159

Chryxus tomentosus Champion, 1899

Figs 1 , 29-32

Note.

Besides the two male syntypes from Panama ( Champion 1899), only two other specimens (sex not mentioned) of C. tomentosus were recorded in the literature: one as being collected in Guyana ( Usinger 1952) and the other in Panama ( Lucas et al. 2016).

Non-type material examined.

French Guiana. Itoupé, 400 m.a.s.l., window trap n°1, 1 female, 31.iii.2010; Saül, window trap, 6 females, 10.xii.2010, 20.xii.2010, 07.iii.2011, 07.iii.2011, 22.iii.2011, 22.iii.2011, SLAM bas (Sea, Land and Air Malaise trap) (SLAM Trap-Standard BugDorm Store), 4 females, 21.iii.2012, 03.vii.2012, 31.x.2012, 27.xi.2012; Saül Belvédère, window trap, 6 females, 09.ix.2010, 17.ix.2010, 06.x.2010, 5.xi.2010, 20.xii.2010, 24.i.2011, SEAG leg. (J-MB).

Morphological remarks.

Measurements (mm): total length to tip of hemelytra: 4.75 to 5.2; Pronotum length: 1.25; hind lobe maximum width: 1.75; abdomen maximum width: 2.0. Coloration (Figs 29 , 30 ): head blackish; apical half of first, second and third visible labial segments pale brownish. Scape and pedicel pale orange to yellowish; flagellomeres darkened, except paler basal portion of basiflagellomere. Thorax blackish; legs pale orange to orange yellowish. Hemelytra: corium yellowish with somewhat less than distal half blackish; clavus blackish and pale yellowish on approximately basal and distal halves, respectively; membrane pale whitish with a large blackish spot occupying almost entirely discal cell, except basal portion of discal cell, and another blackish spot in the distal region, which may be partially contiguous to the spot of discal cell. Abdomen. Connexivum pale yellow to whitish with distal markings which are larger on the ventral portion of each segment. Sternites generally blackish with some brownish stripes on segments IV-VII. All specimens show the same coloration as described above, except one specimen from Mont Itoupé with antennae, distal portion of femora, tibiae and clavus entirely black (Fig. 31 ). Structure (Figs 29-31 ). Pronotum. Fore lobe: lateral angles largely prominent; shallow faintly defined oblique furrows present along its surface; median sulcus formed by a series of foveae, which may present separately or partially fused along the sulcus and are more or less progressively smaller towards distal portion; median sulcus running from just before transverse sulcus (which is interrupted by the proximal fovea), to somewhat far from posterior margin of pronotum. Transverse furrow narrow. Scutellum with its apex elevated and somewhat thickened. Hind tibiae straight. Connexivum with a continuous uniform margin. Female genitalia. Posterior view (Fig. 32 ): dark blackish, gonapophysis IX paler. Syntergite IX/X large, horizontal, as inverted subtrapezoidal; gonocoxa VIII elongate, moderately enlarged at median portion; gonapophysis VIII pointed laterally at median portion; gonapophysis IX subclaviform.

Distribution

(Fig. 1 ). French Guiana (new record), Guyana, and Panama.

Figures

Figure 1. A general map of South America and a small portion of Central America (Panama, purple color) showing occurrence points of species of Chryxus: C. bahianus (red circles) in the States of Bahia and Espirito Santo of Brazil (pale green color); C. garcetebarretti sp. nov. (blue square) in Paraguay (pink color), and C. tomentosus (yellow triangles) in French Guiana (blue color), Guyana (orange) (marked randomly in the middle of the country; exactly location not recorded), and Panama (purple).

Figures 29 - 32. Chryxus tomentosus Champion, 1899, females from French Guiana 29 dorsal view 30 ventral view 31 specimen from Mont Itoupe, dorsal view 32 external genitalia, posterior view, SEM image. Abbreviations: sy IX / X syntergite IX / X, gc VIII gonocoxa VIII, gp VIII gonapophysis VIII, gp IX gonapophysis IX. Scale bars: 1.0 mm (29 - 31).