Parathyginus kurandae ( Distant, 1918 )

Malipatil, M. B., 2021, Revision of Australian Parathyginus with description of two new species, along with first detailed description of aedeagus in the family Heterogastridae (Hemiptera: Heteroptera: Lygaeoidea), Zootaxa 5016 (4), pp. 503-522 : 510

Parathyginus kurandae ( Distant, 1918)

( Figs. 21–28 )

Dinomachus kurandae Distant, 1918: 488 (original description).

Parathyginus kurandae: Scudder, 1957: 168 (generic position). Slater, 1964: 770 (catalogue, distribution). Cassis & Gross, 2002: 207 (catalogue, distribution).

Parathyginus kurandae: Dellapé & Henry, 2020 : Lygaeoidea Species File. Version 5.0/5.0. Available from: urn:lsid:Lygaeoidea. speciesfile.org:TaxonName: 489784 (accessed 1/01/2021).

Type specimen examined: [Note only images but no specimens examined]

“Type”, “sex?”, “Kuranda, Qld, April.04, F.P. Dodd”, “ Dinomachus kurandae Dist. Type (in Distant’s handwriting)”, “ Dinomachus kurandae Distant 1918 , G.G.E. Scudder 1974, LECTOTYPE ”, in NHM. [Note: Although G.G.E. Scudder designated and labelled the above lectotype, it appears his action was never published].

Other specimens examined: QUEENSLAND: 1 male, Bulburin State Forest , 9 km E Many Peaks, 600 m, pyrethrin rainforest, 17.ix.1989, G.B. Monteith ; 1 male, 1 female, Canungra Creek , 4 ml (ca 6 km) S Canungra, 3.ii.1973, G.B. Monteith ; 4 female, The Knobby via Glamorgan Vale , 27.30S 152.35E, 240 m, pyrethrum trees 7242, 16.ix.1998, G. Monteith & P. Bouchard ; 1 male, Boombana Nat Pk site 1, 27.24S 152.47.4E, 440 m, pyrethrum rainforest 51988, 21.iv.2004, C.J. Burwell; all in QM .

Redescription. Colour. ( Figs. 21–25 ). Head black with a basal spot between ocelli and apex of tylus ochraceous; antennae pale ochraceous, apical 1/3 of second, apical nearly 2/3 of third and apical ½ of fourth pale castaneous. Pronotum with thick, coarse and dark punctures; a slender central longitudinal carina, and two similar but oblique carinas on posterior lobe dull ochraceous. Scutellum with central longitudinal carination on posterior half which apically bifurcates on each side, ochraceous. Corium ochraceous, coarsely, thickly, and darkly punctate, lateral margins very narrowly ochraceous, apical angles ochraceous with black area preceding and along apical margin; membrane bronzy brown. Legs very pale ochraceous, patches of fore and subapical ringlike areas of mid and hind femora, three annulations on all tibiae and apices of tarsal segments castaneous. Abdominal colour generally as in P. signifer .

Body (measurements are of male, followed by those of female in parentheses). Length including wings 6.54 (7.80); maximum width across abdomen 1.74 (2.28).

Head. Length 0.95 (1.06); width across eyes 1.40 (1.56); interocular space 0.79 (0.95); interocellar space 0.38 (0.45); eye-ocellar space 0.14 (0.12); eye length 0.41 (0.45); eye width 0.30 (0.34). Length of antennal segments: I 0.64 (0.63), II 1.40 (1.36), III 0.95 (0.98), IV 1.05 (1.00). Labium extending to between middle and hind coxae, 1 st segment reaching base of head, lengths of segments: I 0.78 (0.98), II 0.95 (0.95), III 0.90 (0.76), IV 0.57 (0.58).

Thorax Median length of pronotum 1.10 (1.29); width at anterior margin 0.95 (1.18); width at posterior margin 1.71 (2.12). Scutellum very coarsely and darkly punctate, length 1.33 (1.59), width 0.98 (1.21). Length of hemelytra 4.36 (4.90); length of corium 2.85 (3.74); claval commissure 0.41 (0.45). Tibiae of all legs with three almost equidistant castaneous rings, latter variable in intensity and definition.

Abdomen Inner laterotergites present in both sexes as very narrow sclerites between segments III to VI. In male, posterolateral angles of segments V and VI produced to finely pointed spinules.

Male genitalia Pygophore as in P. signifer . Paramere ( Fig. 26 ) blade gradually pointed to apex, but not angular or with a subapical dent on outer surface, and lacking tooth on inner surface. Aedeagus as in P. signifer , except ejaculatory reservoir more developed as a triangular shaped sclerotized structure ( Fig. 27 , er).

Female genitalia. Spermatheca as in Fig. 28 , (sp).

Distribution. Australia (Queensland).

Comments. This species can be readily distinguished from other Australian species by the three almost equidistant castaneous annulations on all the tibiae ( Figs. 23, 25 ), and other characters in the key.

Most of the non-type specimens examined were collected by pyrethrum knockdown from rainforest trees at altitudes ranging between 240 m – 600 m.

Figures

FIGURES 21–25. Parathyginus kurandae: 21, Type, body dorsal view and labels; 22, 23, male body, dorsal and lateral views; 24, 25, female body, dorsal and lateral views.

FIGURES 26–28. Parathyginus kurandae: 26, 27, male—26, right paramere, dorsal view; 27, endosoma. 28, female, spermatheca. Abbreviations: er, ejaculatory reservoir; sd, seminal duct; sp, spermatheca; ve, vesica.