Inoma arrernte, 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 : 441-446

publication ID	https://doi.org/ 10.5281/zenodo.5341505
persistent identifier	https://treatment.plazi.org/id/03C387BA-DC3D-FF98-BFAA-FB8E69B6FCDA
treatment provided by	Felipe
scientific name	Inoma arrernte
status	sp. nov.

Treatment

Inoma arrernte sp. nov.

( Figs. 1 View Fig , 3-4 View Fig View Fig , 10j View Fig , 13a)

Type material. HOLOTYPE: J, AUSTRALIA: NORTHERN TERRITORY: ~ 75 km E of Stuart Hwy on Ernest Giles Road, 24.56668°S 132.5324°E, 511 m, 30 Oct 2001, Cassis, Schuh, Schwartz, Silveira, Wall ( AMNH _PBI 00016098) ( AM). PARATYPES: AUSTRALIA: NORTHERN TERRITORY: 33 km E of Alice Springs on Ross Hwy, 23.73335°S 134.1536°E, 555 m, 25 Oct 2001, Cassis, Schuh, Schwartz, Silveira, Wall, ex. Anemocarpa saxatilis ( Asteraceae ; det. NSW Herbarium NSW658341),3JJ ( AMNH _PBI 00010201, AMNH _PBI 00013131, AMNH _PBI 00013657), 6 ♀♀ ( AMNH _PBI 00013132- AMNH _PBI 00013136, AMNH _PBI 00013658) ( AM); 74.2 km NW of Bond Springs on Tanami Rd, 23.41668°S 133.2307°E, 671 m, 22 Oct 2001, Cassis, Schuh, Schwartz, Silveira, Wall, Rutidosis helichrysoides ( Asteraceae ; det. field ID NSW 658290), 1 ♀ ( AMNH _PBI 00016097) ( AM); ~ 44 km E of Stuart Hwy on Ernest Giles Rd, 24.56668°S 132.6815°E, 494 m, 30 Oct 2001, Cassis, Schuh, Schwartz, Silveira, Wall, Solanum ellipticum ( Solanaceae ; det. NSW Herbarium NSW666249), 1 ♀ ( AMNH _PBI 00010202) ( AM); ~ 75 km E of Stuart Hwy on Ernest Giles Road, 24.56668°S 132.5324°E, 511 m, 30 Oct 2001, Cassis, Schuh, Schwartz, Silveira, Wall, 21 JJ ( AMNH _PBI 00016099- AMNH _PBI 00016101, AMNH _PBI 00016103- AMNH _PBI 00016120), 1 ♀ ( AMNH _PBI 00016102) ( AM).

Additional material examined. AUSTRALIA: NORTHERN TERRITORY: 33 km E of Alice Springs on Ross Hwy, 23.73335°S 134.1536°E, 555 m, 25 Oct 2001, Cassis, Schuh, Schwartz, Silveira, Wall, ex. Anemocarpa saxatilis ( Asteraceae ; det.NSW Herbarium NSW658341), 8 larvae ( AMNH _PBI 00013670, AMNH _PBI 00013672- AMNH _PBI 00013677, AMNH _PBI 00230072).

Diagnosis. Inoma arrernte sp. nov. is recognised by the following combination of characters: small size ( Fig. 1 View Fig ); body mostly stramineous ( Fig. 1 View Fig ); body covered with elongate, silvery, woolly setae ( Figs. 1 View Fig , 4 View Fig ), densely distributed on dorsum; setae on abdominal venter shorter, scale-like and thickened ( Fig. 4h View Fig ); pronotum and hemelytra with dense distribution of minor setiferous tubercles with elongate recurved terminal seta ( Figs. 1 View Fig , 4 View Fig d-f); cephalic spines of moderate length, as long as AI ( Fig. 4a View Fig ); occipital spines straight, weakly divergent ( Fig. 4a View Fig ); paranota and costal areas uniseriate ( Fig. 4d View Fig ); paranota obliquely extended ( Fig. 4d View Fig ); brachypters with large areolae in costal area, small in remainder.

Description of adult. Small size, macropterous (male 2.34, female 2.43) and brachypterous (males 1.75-1.93, females 1.79-2.01) forms ( Fig. 1 View Fig ).

COLOURATION. Dorsum mostly stramineous ( Fig. 1 View Fig ); venter brown. Head: light brown; spines yellow-brown; bucculae stramineous. Labium: mostly dark brown. Antennae: mostly yellow-brown; AIV dark brown. Pronotum: mostly stramineous, light brown anteriorly with a light brown spot in middle of median carina. Thoracic pleura and sterna: light brown with stramineous margins; sternal carinae stramineous. Legs: femora with basal half to two-thirds medium brown, remainder and tibiae lighter yellow-brown; tarsi dark brown. Hemelytra: stramineous, with two light brown patches on R+M vein; light brown markings in costal area on horizontal margins of areolae. Abdomen: venter light brown.

VESTITURE. Elongate, curly, fine, woolly setae present on head, dorsum and thoracic pleura; minor setiferous tubercles densely distributed on pronotum and hemelytra, very short, with elongate recurved terminal seta ( Fig. 4 View Fig a-f). Head: minor setiferous tubercles covering entire cephalic spines ( Fig. 4a,c View Fig ). Antennae:AIII with minor setiferous tubercles, with elongate terminal seta, tapered apically. Pronotum: minor setiferous tubercles in two opposing rows on posterior half of paranota, single rows on rest of pronotum. Thoracic pleura and sterna: densely distributed elongate, woolly setae; posteroventral margin of proepimeron with a few minor setiferous tubercles; sternal carinae with two rows of hair-like, recurved, terminal seta. Legs: femora with minor setiferous tubercles, terminal seta curly, slightly thickened; tibiae with minor setiferous setae, with longer bristle-like, semi-erect, terminal seta. Hemelytra: woolly setae densely distributed; minor setiferous tubercles in two opposing rows on costal margin, extending to forewing apex; elsewhere in one row ( Fig. 4 View Fig e-f). Abdomen: venter with moderately dense distribution of shorter, thickened, scale-like setae ( Fig. 4h View Fig ).

STRUCTURE. Head ( Figs. 4 View Fig a-d): spines moderate length, subequal to AI length ( Figs. 4 View Fig a-c); frontal spines parallel ( Fig. 4a View Fig ); medial spine straight ( Fig. 4a View Fig ), occipital spines weakly diverging ( Fig. 4a View Fig ). Labium: elongate, extending to abdomen. Antennae: AIV compact, without cylindrical base. Pronotum: callar region slightly convex in macropters ( Fig 1 View Fig ) or flat in brachypters ( Figs. 1 View Fig , 4 View Fig e-f); collum very weakly enlarged ( Fig. 3d View Fig ), slightly rounded apex; paranota uniseriate ( Figs. 1 View Fig , 4d View Fig ), obliquely extended; carinae areolae small. Hemelytra: Macropters ( Figs. 1 View Fig , 4f View Fig ): costal area uniseriate, areolae large; subcostal and discoidal areas with smaller areolae; sutural area with large areolae; hypocosta wide, as wide as costal area ( Fig. 1 View Fig ). Brachypters ( Figs. 1 View Fig , 4e View Fig ): reduced sutural and costal areas; acutely rounded posteriorly; convex laterally; costal area, areolae large and sometimes rectangular and elongate rather than quadrate; remainder of forewing with small areolae. Male genitalia: pygophore ( Fig. 4g View Fig ); parameres with rounded sensory lobe, sensory lobe with elongate setae, inner margin of parameres with short setae, dorsal surface of parameres with broad distribution of minute setae; distal U-shaped endosomal sclerite with shallow, rounded cleft, long basal branches, straight distal margin; paired, semi-circular, basal endosomal sclerites, surface tuberculate ( Fig. 10j View Fig ). Female genitalia: subtriangular subgenital plate ( Fig. 4h View Fig ).

MEASUREMENTS. Measures of 1 J and 1 ♀ macropters and ranges of 10 JJ and 10 ♀♀ brachyters given in Table 1.

Description of fifth instar larva ( Fig. 3 View Fig ). COLOURATION. Stramineous, with darker areas of light to mid-brown on pronotal carinae, tip of hemelytral lobes, medially across abdominal tergites, and spotted sub-laterally on abdominal sternites; AIV, labium, femora and tarsi embrowned.

VESTITURE AND STRUCTURE. Dorsum with dense distribution of pale, stellate-shaped cuticular outgrowths, short and not strongly elevated, distally with four short sub-quadrate tips; same cuticular outgrowths also present sublaterally on abdominal sternites, on thoracic pleura and laterally on head below eye; pronotum with pairs of elongate, medial processes; mesonotum, metanotum and abdominal tergite I with elongate, paired medial processes; abdominal tergites II and V-VIII with single, elongate, medial process; posterolateral corners of abdominal tergites IV-IX with single, short process, lateral margins of pronotum and hemelytral lobes without any processes; minor setiferous tubercles with short, clavate, terminal seta, covering all processes, cephalic spines, lateral and posterior margins of pronotum, and intermixed sparsely with cuticular outgrowths on hemelytral lobes and abdominal tergites.

Differential diagnosis. This species is similar to I. innamincka sp. nov., but differs from it by the following character states: 1) slightly smaller body; 2) longer recurved terminal setae on minor setiferous tubercles; 3) denser covering of woolly setae on dorsum, which are longer and more curled; 4) lighter brown abdominal venter, with elongate scale-like setae; and 5) more elongate labium, reaching the abdomen. This species is also similar to I. silveirae sp. nov., but can be distinguished from it by the possession of minor setiferous tubercles (cf. major setiferous tubercles of I. silveirae sp. nov.), a slightly more elevated collum, and being more stramineous or cream in colouration (cf. lighter brown colour of I. silveirae sp. nov.).

Etymology. This species is named after the Aboriginal people of the region of central Australia, on whose traditional lands it was collected, the Arrernte (UH-rrahn-da) people. Noun in apposition.

Biology. Inoma arrernte sp. nov. is found on a broad range of plant species, commonly on Anemocarpa saxatilis (Asteraceae) , on which both adults and larvae have been found, and Halgania cyanea (Boraginaceae) . It has been recorded singly on Rutidosis helichrysoides (Asteraceae) and Solanum ellipticum (Solanaceae) .

Distribution. Inoma arrernte sp. nov. is known only from four localities in central Australia, in the Alice Springs region of the Northern Territory ( Fig. 13a). It has only been collected from mid-elevations (> ca. 500 m).