Canthophorus mixtus Asanova 1964
Creators: name: Gapon, Dmitry A.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cydnidae
Canthophorus
Canthophorus mixtus

description: Canthophorus mixtus Asanova, 1964 (Figures 3 I –3 K, 5 C, 6 T, 6 U, 7 K –7 S, 8 O –8 U, 11 A – 11 C, 12 F)
Canthophorus mixtus Asanova 1964: 140 [holotype: male, Kazakhstan, Karaganda Prov., 40 km S of Zhana-Ark [Atasu], Koksengir Uplands; lost].
Description
Lateral margin of pronotum and corium with yellowish narrow stripe; anterior angles of ventrites and connexival laterotergites with yellowish spots. Metapleural evaporatorium with long and curved peritreme. Membrane brownish, opaque.
Pygophore slightly longer than wide, almost as in C. melanopterus, but with less deeply concave lateral walls and slightly shorter, not concave dorsal infolding.
Paramere (Figures 3 I –3 K). Sensory process rather long, broadly or rather sharply rounded at apex. In specimen from Gyumri, hypophysis strongly curved inwards and sensory process more strongly bent dorsad (Figure 3 J).
Aedeagus (Figure 5 C). Ventral lobe of conjunctiva rather long, slightly protruding beyond apical margin of theca; in ventral view, apically not widened, almost rectangular, at sides of apex with two denticles directed distad and with triangular depression between them (Figure 6 T); in lateral view, lobe rather narrow (Figure 6 U). Apical part of conjunctiva slightly shorter than in C. dubius and C. melanopterus. Apical lobes rather long, directed dorsolaterad and curved posteriad. Vesica long, without lateral branch. Dorsolateral lobes rather short, straight, directed dorsolaterad and slightly posteriad, with spaced bases and rectangularly rounded apices in lateral view. Anterior walls of dorsolateral lobes subapically with weakly sclerotised areas. Spicule extending from posterior end of basal plate, longer then in all previous species and directed anteromediad by apices. Each spicule at base sharply curved in a C-shape, in distal part smoothly or rather sharply arcuately curved, gradually tapering to pointed, more or less straight or sometimes distinctly curved outwards apex (Figure 7 K – 7 S). Single denticle on anterior end of spicule basal plate short, triangular, pointed and directed anterolaterad.
Gynatrium (Figure 11 A). Posterior pouches of gynatrial sac lying anterior to its posterior margin, rarely right on margin, very long and narrow, 4–6 times as long as wide, of the same width almost all over, at extreme apices rounded and slightly widened (Figure 12 F). Basally pouches directed laterad, in middle sharply curved posteriad. Very rarely (in specimens from Azerbaijan, Kars and Altay Territory, Kamen’-na-Obi) pouches entirely straight (Figure 11 B); in one of the specimens examined (Bashkortostan, Aksenovo), left pouch curved while right one straight. Sometimes inner surfaces of pouches at apex or at place of bend irregularly sclerotised [probably, these areas of sclerotisation are the result of injuring the walls of the posterior pouches by the aedeagal spicules during copulation]. Anterior part of gynatrial sac usually rather large, only slightly smaller than in C. dubius and C. melanopterus. Proximal part of spermathecal duct slightly longer than in these species, but shorter than half of median part as well as distal part of duct; less often median part shortened and proximal part as long as half of its lengths. Proximal tubular part of spermathecal capsule 2–3 times as long as transverse diameter of distal spherical part. First rami usually rather strongly widened anteriorly and more or less rectangularly rounded (Figure 8 O –8 Q) at anterior ends, less often evenly or acutely rounded (Figure 8 R, 8 S) or triangular, with elongated inner angle (Figure 8 T, 8 U).
Remarks
The holotype and allotype of C. mixtus are absent in the ZISP collection; probably, Asanova left them in the Institute of Zoology in Alma-Ata, and by now they are lost (at least I have not received any response from Alma-Ata to my inquiries about the types). Data on the type series in the paper of Asanova (1964) are inaccurate; viewing the ZISP collection showed that she usually adduced only one of similar labels, and made many mistakes in dates and numbers of specimens. A significant part of the paratypes is currently missing in the ZISP collection.
description: Published as part of Gapon, Dmitry A., 2018, Morphology of male and female terminalia and taxonomic revision of the burrower bugs genus Canthophorus (Heteroptera: Cydnidae), pp. 183-228 in Annales de la Société entomologique de France (N. S.) (N. S.) 54 (3) on page 35, DOI: 10.1080/00379271.2018.1467788, http://zenodo.org/record/14927017