Byrsinus australis, Lis, 2001

Lis, Jerzy A., 2001, A REVIEW OF THE GENUS BYRSINUS FIBBER, 1860 (HEMIPTERA: HETEROPTERA: CYDNIDAE) IN AUSTRALIA, WITH A KEY TO AUSTRALO-PACIFIC SPECIES, Annales Zoologici 51, No. 2, pp. 197-203 : 198-199

Byrsinus australis sp. nov.

( Figs 1, 7, 8, 13)

. lnagnosis. This new species is allied lo B. ocf1:ratetl.'; in its general babitus and body vestiture, but differs from the latter in the shape of bucculae (H. australis - bucculac narrow posteriotly - Fig. 7, B. ochracei,l, - bucculae very broad posteriorly- Fig. 6), and prosternal car-inae (B. austral-is, prosternal carinae low - Fig. 7, B. ochraceil<;, prosternal carinae b.igh - Vig. 6). Moreover, botb these species differ also in the shape of male paramere (Fig'S 8, 10), and the opening of pygophol'e (Figs 13, 15).

Des<:riptwn. Body elongately ovate ( Fig. 1), about 1.59-l.73 times longer than wide (body length: 3.97-4.44, body ·width: 2.41-2.73). Dorsal surface brown to dark brown, l1ead usually darker than pronotum, sometimes even blackish brown.

Head dorsally with numerous small, more or less colourless punctures; clypeus almost as long as paraclypci, slightly tapering apically, impunclate or with a few colourless hardly visible punctures, and a pair of subapical setigerous punctures bearing long hair-like setae; paraclypeus with a submarginal row of 10--14 setigerous ptmclures bearing long hair-like setae, peglike setae absent; eyes brown to reddish brown, each with a long apical seta, ocular index about 3.3-4.3; ocelli small, yellowish brown to reddish browu, ocellar index about 6.6-9.8; distance between ocelli about 9-17 times a distance of ocellus from eye; antennae yellowish brnwn to brown, its 3rd segment 0.8-1.0 times as long as the 2nd segment; bucculae narI'ow posteriorly ([<'ig. 7), striated and wrinkled; anterior half of gular plate impunctatc or with a few hardly visible colourless punctures; rostrum yellowish brown lo brown, reaching or almost reaching mid coxac.

Ptonolum broad, more or less densely punctured, except for smooth calla) areas; umbones slightly swollen; anterior margin angularly concave ccntTally; lateral margins of pronolal disc with 40-60 very long hai.I·-like setae.

Scutellum densely punctured, except for its extreme apex and antero-lateral angles, punctures usually brown to dark brown, as Large as those on pronolum; basal half of scutcllar disc slightly convex.

Corium with dark punctures slightly larger than those on scutellum; clavus with one complete and hvo partial rows of punctures; mesocorium,vith two rows of punctures paralleling clavo-corial suture, remaining surface of mesocorial disc almost evenly punctw·ed; costa with about 20-35 vety long ha.it-like set.ae; membrane semihyaline, extending beyond the tip of abdomen.

Propleuron impunctate, with a few wrinkles close to coxae; prosternal carinae low, only slig'htly elevated (Fig. 7); meso- and metaplew-al evaporatoria typical of the genus, lateral parts of meso- and metapleuron usually with wrinkles and punctures.

Hind tibiae slightly curved apically, its dorsal side somewhat flattened and bearing numerous long hair-like setae.

Abdominal slerna densely punctured, segments covered with numerous long hair-like setae. Male pygopbore with the opening as in Fig. 13, para.mere as in Fig. 8.

Types. Holotype male: AUSTRALIA: South Australia: S. Aust., at light, Levi Crk., 8 km NW Big Perry Spring , 28°19.2' 136°16.1', 7 Dec. 1974, J. A. Herridge ( SAMA) ; Paratypes: South Australia: 1 male 4 females, same data as the Holotype ( SAMA, DBUO) ; 7 females, at light, iu creek bed, Farina, Sth. Aust ., 27 Oct. 1970, G. Gross & E. G..Matthews ( SAMA, DBUO) ; 1 female, Eladunna Sta.lion, Birdsville track, Oct. 1972, K & B. Oldfield ( WAMP) ; 1 female, Etadunna Station, Birdsvillc track, 3 Oct. 1972, M. Archer & K. Oldfield ( WAMP) ; 1 female, S. Aust., Mt. Remarkable N.P., 17 January 1982, al light, E. G. Matthews, Mambray Crk. ( SAMA) ; 1 male, S. Aust., Clifton Hills OS (ruin), 26°31'S 139"26'E, at light, 21 st Nov. 1993, J. A. Forrest, D. Hirst ( SAMA) ; 1 male, S. Aust., William Ck., Hacecoursc , al light, 5 Dec. 1974, J. A. Herridge, A. Kowarko ( SAM. A) ; 1 male, 29.49S 134.54E, S. A., 91km S by E of Goober Pedy , 22 Nov. 1971, T A. Weil' ( ANIC) ; New South Wales: 1 female, Broken Hill, at light, 11 Nov. 1976, G. E Gross ( SAMA) ; 1 female, ,, The Cubas ", via Boolig'a.l , approx. 30ml. west., 11 Feb. 1965, A.W Forbes (SAlVIA) .

Etymology. The species name is given after terra typica.

. Distribution. New South Wales, South AustraUa.