Calacanthia grandis Cobben, 1985

Vinokurov, Nikolay N., 2015, A new species and new data on distribution of the shore bugs of China (Hemiptera: Heteroptera: Saldidae), Acta Entomologica Musei Nationalis Pragae 55 (2), pp. 569-584 : 571-572

Calacanthia grandis Cobben, 1985

( Figs 2–7 )

Material examined. CHINA: SICHUAN: E Danba, E Suopo, 30°52′53″N 102°02′51″E, 4343 m a.s.l., 14.viii.2004, 1 J 1 ♀, I. Belousov & I. Kabak lgt. ( ZISP) ; SW of Jiabi , 31°27′54″N, 102°41′38″E, 3780 m a.s.l., 9.viii.2007, 2 JJ (1 J teneral), 1 5 th instar larva, I. Belousov & I. Kabak lgt. ( ZISP) ; Kangding, NNE Yalaxiang, Shuangyanwo , 30°13′46″N 101°59′30″E, 4170 m, 7.vii.2013, 1 ♀, I. Belousov & I. Kabak lgt. ( ZISP) .

Additions to the description and variability. In the examined adults coloration and vestiture are similar to those of the holotype. Females are larger than the holotype of C. grandis : body length 8.0–8.5 mm and width 3.7–3.8 mm ( Fig. 2 ). Males are shorter than females: body length 6.5 mm, width 3.0 mm. (For detailed measurements of these specimens refer to Table 1). Distribution of pale spots on corium of two females and one male are almost identical to those of the holotype, the clavus near the apex having a small triangular pale spot ( Fig. 7 ). Membrane is almost entirely black, veins black, cells with pale spots near apex, and small spots in middle brown. An unusually dark male from Jiabi has an entirely black clavus, and the corium is provided with only three pale spots: one on apex of exocorium and two on endocorium near RM-vein, at middle and close to apex.

Description of male genitalia. Paramere with high and narrowed processus sensualis bearing long thin setae, base of processus hamatus thick and gradually narrowed towards end ( Fig. 3 ). Parandria as in Fig. 4 , median endosomal sclerite wide ( Figs 5, 6 ).

Description of 5 th instar larva. Body black, dull shiny. Head, pronotum and wing buds with scarce, short, black setae. Antennae thin, black, covered with adpressed long straight setae and scarce black erect setae; segment II short, 1.3 times as long as segment III; segments III and IV almost equal in length to corresponding antennal segments of adults. Labium long, brownish-black, surpassing hind coxae. Legs blackish-brown. Fore femora with a row of long erect spines ventrally. All tibiae with short semi-adpressed straight stiff black setae and scarce, long, erect, black bristles equal in length to thickness of tibia; these bristles located on ventral surface of front tibiae and on dorsal surface of middle and hind tibiae. Abdomen with scarce, long, black erect setae and with black stiff bristles along lateral margins of abdominal segments. Body length 4.5 mm, body width 2.5 mm (for detailed measurements see Table 1).

Habitat. Recently, three additional males, two females and one 5 th instar larva of this species were collected in Sichuan at the altitudes of about 4000 m a.s.l. on forest river banks and in lower alpine zone habitats (I. Kabak, pers. comm.).

Note. COBBEN (1985) described this species, the largest representative of the genus Calacanthia Reuter 1891 , from a single female sampled in Sichuan Province, China. The holotype of C. grandis is retained in the ZISP collection and badly damaged, with all appendages missing.

Figures

Figs 1–8. 1 – Chiloxanthus kozlovi (Kiritshenko, 1912), female (Sichuan). 2–7 – Calacanthia grandis Cobben, 1985; 2 – female (Gansu); 3 – paramere; 4 – parandria; 5–6 – medial endosomal sclerite (5 – lateral view, 6 – ventral view); 7 – female, holotype, forewing (after COBBEN 1985). 8 – Macrosaldula bogdashana Luo & Vinokurov, 2011, female (Xinjiang).