Inoma silveirae, Cassis & Symonds, 2008

Cassis, Gerasimos & Symonds, Celia, 2008, Systematics, biogeography and host associations of the lace bug genus Inoma (Hemiptera: Heteroptera: Tingidae), Acta Entomologica Musei Nationalis Pragae 48 (2), pp. 433-484 : 463-466

publication ID	https://doi.org/ 10.5281/zenodo.5341505
persistent identifier	https://treatment.plazi.org/id/03C387BA-DC2B-FFB4-BFAD-FAEE6A47FBFA
treatment provided by	Felipe
scientific name	Inoma silveirae
status	sp. nov.

Treatment

Inoma silveirae sp. nov.

( Figs. 2-3 View Fig View Fig , 8 View Fig , 10 View Fig h-i, 12a-c,f, 13b)

Type material. HOLOTYPE: J, AUSTRALIA: NORTHERN TERRITORY: 8.8 km N of Mt Wedge Stn Rd junction on Tanami Rd , 22.63335°S 132.3525°E, 598 m, 23 Oct 2001, Cassis, Schuh, Schwartz, Silveira, Wall, ( AMNH _ PBI 00013151 View Materials ) ( AM). GoogleMaps

PARATYPES: AUSTRALIA: NORTHERN TERRITORY: 184 km E of Stuart Hwy on Lasseter Hwy, 25.23334°S 131.5703°E, 510 m, 31 Oct 2001, Cassis, Schuh, Schwartz, Silveira, Wall, ex. Dicrastylis beveridgei var. beveridgei F. Muell. (Lamiaceae) , 3 JJ ( AMNH _PBI 00013165- AMNH _PBI 00013167), 5 ♀♀ ( AMNH _PBI 00010198- AMNH _PBI 00010200, AMNH _PBI 00013168- AMNH _PBI 00013169) ( AM); 193 km E of Stuart Hwy on Lasseter Hwy, 25.21667°S 131.4776°E, 519 m, 31 Oct 2001, Cassis, Schuh, Schwartz, Silveira, Wall, ex. Dicrastylis beveridgei F. Muell. ( Lamiaceae , det. NSW Herbarium, NSW666267), 2 JJ ( AMNH _PBI 00179526-00179527), 2♀♀ ( AMNH _PBI 00179774-179775), ex. Alyogyne pinoniana (Gaudich.) Fryxell ( Malvaceae , det. NSW Herbarium, NSW666268), 1 J ( AMNH _PBI 00179528) ( AMNH); 26.8 km W of Tanami Rd on Mt Wedge Station Rd, 22.50001°S 132.179°E, 589 m, 23 Oct 2001, Cassis, Schuh, Schwartz, Silveira, Wall, 1 ♀ ( AMNH _PBI 00013170) ( AM); 35.4 km W of Uluru at Kata Tjuta jct on Lasseter Hwy, 25.33334°S 130.6892°E, 592 m, 01 Nov 2001, Cassis, Schuh, Schwartz, Silveira, Wall, ex. Dicrastylis gilesii var. gilesii f. densa Munir ( Lamiaceae ; det. NSW Herbarium NSW666280), 2 ♀♀ ( AMNH _PBI 00016121, AMNH _PBI 00016122) ( AM); 8.8 km N of Mt Wedge Stn Rd jct on Tanami Rd, 22.63335°S 132.3525°E, 598 m, 23 Oct 2001, Cassis, Schuh, Schwartz, Silveira, Wall, Dicrastylis lewellinii (F. Muell.) F. Muell. ( Lamiaceae ; det. NSW Herbarium NSW658320), 13 JJ ( AMNH _PBI 00010164- AMNH _PBI 00010168, AMNH _PBI 00010181- AMNH _PBI 00010185, AMNH _PBI 00010203- AMNH _PBI 00010205), 16♀♀ ( AMNH _PBI 00010169- AMNH _PBI 00010180, AMNH _PBI 00010186- AMNH _PBI 00010188, AMNH _PBI 00013644) ( AM), 19 JJ ( AMNH _PBI 00179546- AMNH _PBI 00179559, AMNH _PBI 00179563- AMNH _PBI 00179567), 23 ♀♀ ( AMNH _PBI 00179848- AMNH _PBI 00179870) ( AMNH). QUEENSLAND: 75.7 km W of Windorah, 25.37703°S 141.9457°E, 250 m, 03 Nov 1998, Schuh, Cassis, Silveira, ex. Newcastelia cephalantha F. Muell. ( Lamiaceae ; det.NSW Herbarium NSW427984), 31JJ ( AMNH _PBI 00010219, AMNH _PBI 00010225, AMNH _PBI 00010227, AMNH _PBI 00010230- AMNH _PBI 00010232, AMNH _PBI 00010234- AMNH _PBI 00010235, AMNH _PBI 00010239, AMNH _PBI 00010241- AMNH _PBI 00010244, AMNH _PBI 00010247, AMNH _ PBI 00010252- AMNH _PBI 00010253, AMNH _PBI 00010256- AMNH _PBI 00010257, AMNH _PBI 00010261, AMNH _PBI 00010263- AMNH _PBI 00010265, AMNH _PBI 00010269, AMNH _PBI 00013140- AMNH _PBI 00013147), 29♀♀ ( AMNH _PBI 00010220- AMNH _PBI 00010222, AMNH _PBI 00010226, AMNH _PBI 00010228- AMNH _PBI 00010229, AMNH _PBI 00010233, AMNH _PBI 00010236- AMNH _PBI 00010238, AMNH _PBI 00010240, AMNH _PBI 00010245- AMNH _PBI 00010246, AMNH _PBI 00010248- AMNH _PBI 00010251, AMNH _PBI 00010254- AMNH _PBI 00010255, AMNH _PBI 00010258- AMNH _PBI 00010260, AMNH _PBI 00010262, AMNH _PBI 00010266- AMNH _PBI 00010268, AMNH _PBI 00013148- AMNH _PBI 00013150), 1 adult – sex unknown ( AMNH _PBI 00010223) ( AM), ex. Dicrastylis lewellinii (F. Muell.) F. Muell. ( Lamiaceae , det. Det: Royal Bot Gard. NSW NSW427989), 19 JJ ( AMNH _PBI 00179523- AMNH _PBI 00179525, AMNH _PBI 00179530- AMNH _PBI 00179545), 21♀♀ ( AMNH _PBI 00179776- AMNH _PBI 00179791, AMNH _PBI 00179843- AMNH _PBI 00179847) ( AMNH). SOUTH AUSTRALIA: 18.8 km NW of Cordillo Downs Homestead, 26.64315°S 140.4723°E, 140 m, 05 Nov 1998, Schuh, Cassis, Silveira, ex. Ptilotus obovatus (Gaudich.) F. Muell. ( Amaranthaceae ; det. NSW Herbarium NSW427988), 1 J ( AMNH _PBI 00010196) ( AM). WESTERN AUSTRALIA: 31.7 km W of Agnew toward Sandstone, 27.96227°S 120.4277°E, 800 m, 26 Oct 1996, Schuh and Cassis, ex. Dicrastylis morrisonii Munir ( Lamiaceae ; det.WA Herbarium PERTH 05095204), 3 JJ ( AMNH _PBI 00010195, AMNH _PBI 00013163- AMNH _PBI 00013164), 5 ♀♀ ( AMNH _PBI 00010190- AMNH _PBI 00010194) ( AM); 82.2 km W of Agnew toward Sandstone, 28.01057°S 119.9455°E, 650 m, 26 Oct 1996, Schuh and Cassis, 2 JJ ( AMNH _PBI 00016176, AMNH _PBI 00016177) ( AM), 1 J ( AMNH _PBI 00179687) ( AMNH).

Additional material examined. AUSTRALIA: QUEENSLAND: 75.7 km W of Windorah, 25.37703°S 141.9457°E, 250 m, 03 Nov 1998, Schuh, Cassis, Silveira, ex. Newcastelia cephalantha F. Muell. ( Lamiaceae ; det. NSW Herbarium NSW427984), 1 larva ( AMNH _PBI 00010224) ( AM); 82.2 km W of Agnew toward Sandstone, 28.01057°S 119.9455°E, 650 m, 26 Oct 1996, Schuh and Cassis, 1 larva ( AMNH _PBI 00016178) ( AM).

Diagnosis. Inoma silveirae sp. nov. is recognised by the following combination of characters: small size ( Fig. 2 View Fig ); brachypterous or macropterous ( Fig. 2 View Fig ); mostly cream or yellow-brown with some darker brown patches on paranota and forewings ( Fig. 2 View Fig ); body covered with elongate, curly woolly setae ( Figs. 2 View Fig , 8 View Fig ), more silvery on head and pronotum, more golden on hemelytra; setae on abdominal venter elongate, fine and hair-like ( Fig. 8h View Fig ); pronotum and hemelytra with elongate major setiferous tubercles ( Figs. 2 View Fig , 8 View Fig d-f), terminal seta as long or longer than tuberculate base; cephalic spines moderately elongate, occipital spines outcurved ( Fig. 8a View Fig ); paranota upturned ( Figs. 2 View Fig , 8d View Fig ); paranota and longitudinal carinae narrow ( Fig. 8d View Fig ); paranotal and coastal areas uniseriate ( Fig. 8d View Fig ); macropters with large areolae in coastal and sutural areas ( Fig. 8f View Fig ); and, brachypters with small areolae in discoidal and subcostal areas ( Fig. 8e View Fig ).

Description of adult. Small size, macropterous (males 2.08-2.37, females 2.14-2.39) and brachypterous (males 1.7-2.03, females 1.82-2.07) forms ( Fig. 2 View Fig ).

COLOURATION. Head: dark brown (almost black); spines yellow-brown; bucculae yellow-brown. Labium: dark brown. Antennae: mostly yellow-brown; AIV dark brown (almost black). Pronotum: mostly medium brown, anteriorly dark brown to black and posteriorly paler yellow-brown; collum, paranota and carinae pale yellow-brown. Thoracic pleura: dark brown, with paler margins. Thoracic sterna: sternal carinae cream. Legs: mostly yellowbrown; tarsi dark brown to black. Hemelytra: mostly pale yellow-brown, sometimes with variegated appearance and dark brown markings on areole margins of costal and discoidal areas. Abdomen: venter uniformly light or dark brown.

VESTITURE. Woolly setae on head, dorsum and thoracic pleura, densely distributed, elongate, curly, more silvery on head and pronotal callar region, more golden elsewhere. Major setiferous tubercles on pronotum and hemelytra elongate, terminal seta as long or often longer than tuberculate base, sometimes slightly curved, not oriented regularly ( Fig. 8 View Fig a-f). Head: woolly setae silvery; minor setiferous tubercles covering entire cephalic spines ( Fig. 8a View Fig ). Antennae: minor setiferous tubercles present on AIII, terminal seta elongate with tapered apex. Pronotum: woolly setae silvery; major setiferous tubercles in two opposite rows on paranota, single rows on rest of pronotum ( Fig. 8d View Fig ). Thoracic pleura and sterna: woolly setae densely distributed; posteroventral margin of proepimeron with a few, very small, minor setiferous tubercles, terminal seta elongate; sternal carinae with single row of hair-like setae. Legs: femora and tibiae with elongate, pale hair-like setae in rows, shorter on ventral surface. Hemelytra: yellow-gold woolly setae similar to pronotum, same as on hemelytra; major setiferous tubercles in two opposing rows along costal margin and extending to forewing apex ( Fig. 8 View Fig e-f). Abdomen: venter with moderately dense distribution of elongate, silvery, semi-erect, hair-like setae ( Fig. 8h View Fig ).

STRUCTURE. Head ( Fig. 8 View Fig a-c): cephalic spines elongate ( Fig. 8a View Fig ); frontal spines parallel ( Fig. 8a View Fig ); medial spine straight ( Fig. 8a View Fig ); occipital spines, weakly curved outwards ( Fig. 8a View Fig ). Labium: elongate, extending to base of abdomen. Antennae: AIV compact, with short base. Pronotum: callar region slightly convex (macropters) or flat (brachypters) (see Fig. 2 View Fig – lateral views); collum slightly enlarged; paranota uniseriate, narrow, upturned; carinae, areolae small ( Fig. 8d View Fig ). Hemelytra: Macropters ( Fig. 8f View Fig ): costal area uniseriate, areolae large; subcostal and discoidal areas with smaller areolae; sutural area with large areolae; hypocosta wide, roughly equal width to costal area. Brachypters ( Fig. 8e View Fig ): reduced sutural and costal areas; acutely rounded posteriorly; convex lateral margin; sutural area with small areolae; all other characters as above ( Fig. 8e View Fig ). Male genitalia: pygophore ( Fig. 8g View Fig ); parameres with rounded sensory lobe, sensory lobe with elongate setae, margins of apophysis with short setae, dorsal surface of parameres with broad distribution of minute setae ( Fig. 10 View Fig h-i); distal U-shaped endosomal sclerite with deep and rounded cleft, elongate basal branches, and a straight distal margin; without paired basal endosomal sclerites. Female genitalia: subgenital plate elongate, subtriangular ( Fig. 8h View Fig ).

MEASUREMENTS. Ranges of 10 JJ and 8 ♀♀ macropters and 10 JJ and 10 ♀♀ brachypters given in Table 2.

Description of fifth instar larva ( Fig. 3 View Fig ). COLOURATION: yellow to stramineous, with darkened areas on pretarsi, tip of abdomen, tip of labium, and AIV.

VESTITURE AND STRUCTURE: Dorsum with a moderate distribution of stellate-shaped cuticular outgrowths, elongate and greatly elevated above dorsum, apex with four rounded tips; pronotum with two pairs of medial processes; mesonotum, metanotum and abdominal tergite I with paired, medial processes; TII, V, VI & VIII with single, medial process; lateral margins of pronotum, hemelytral lobes, and posterolateral angles of abdominal tergites with processes; all processes greatly elongate, projected dorsally and covered with minor setiferous tubercles; setiferous tubercles, terminal seta short with a broad cup-shaped apex.

Differential diagnosis. This species is similar in size and colouration to I. arrernte sp. nov. and I. innamincka sp. nov., but is most readily recognised by its small size, stramineous colouration of the dorsum, and elongate major setiferous tubercles on the lateral margins of the pronotum and hemelytra.

Etymology. This species is named in honour of Rossana Silveira, one of the collectors who has greatly contributed to Australian true bug collections, between 1998-2003.

Biology. Inoma silveirae sp. nov. is found on a variety of host plants, including Newcastelia cephelantha (Lamiaceae) and Dicrastylis lewellinii (Lamiaceae) in Queensland, Dicrastylis lewellinii , Dicrastylis gilesii var. gilesii ( Fig. 12b View Fig ), Dicrastylis beveridgei var. beveridgei in Northern Territory and Dicrastylis morrisonii in Western Australia ( Fig. 12f View Fig ). In addition, single specimens were collected from Ptilotus obovatus (Amaranthaceae) in South Australia, and Alyogyne pinoniana (Malvaceae) in the Northern Territory, which may be sitting records.

Distribution. Inoma silveirae sp. nov. is widespread in semi-arid and arid Australia, from nine largely disjunct localities in four states, ranging across western Queensland to central Australia (including southern Northern Territory and northern South Australia), with a widely separated population in the south-central Western Australia ( Fig. 13b). This species has been collected with I. fuscata sp. nov. and I. breviseta sp. nov. in the Northern Territory and I. stysi sp. nov. in Western Australia ( Fig. 12c View Fig ).