Sedulia specularia ( Stål, 1875 )

Tan, Ming Kai, Robillard, Tony & Kamaruddin, Khairul Nizam, 2016, Revision of the grasshopper genus Sedulia Stål, 1878 (Acrididae: Catantopinae) from Malay Peninsula, Zootaxa 4107 (2), pp. 255-266: 259-265

publication ID

http://doi.org/10.11646/zootaxa.4107.2.7

publication LSID

lsid:zoobank.org:pub:67CEF575-BFF6-4A2F-8117-C479CDE9C07A

persistent identifier

http://treatment.plazi.org/id/977A87B6-1546-4319-FF08-FF6FAC56C6F2

treatment provided by

Plazi

scientific name

Sedulia specularia ( Stål, 1875 )
status

 

Sedulia specularia ( Stål, 1875) 

( Figs. 3–8View FIGURE 3View FIGURE 4View FIGURE 5View FIGURE 6View FIGURE 7View FIGURE 8)

http://lsid.speciesfile.org/urn:lsid: Orthoptera  .speciesfile.org:TaxonName: 56381

Sedulia specularia ( Stål, 1875)  : 31; Stål, 1878: 28; Kirby, 1910: 472; Sjöstedt, 1932: 40; Miller, 1934: 540; Dirsh, 1956: 277; Willemse, 1957: 367; Storozhenko, 2009: 19; Tan et al 2013: 101.

Type material. Syntypes: 3 males and 2 females (NRM-ORTH0003813-0003817), Peninsular Malaysia, Malacca [examined, images from Gunvi Lindberg, NRMAbout NRM].

Other material examined. 5 males, 1 female, Peninsular Malaysia: 2 males (LAR. 15.70, 71), Perak, on Bukit Larut, circa N 4.86191, E 100.79556, 1136 ± 5.4 m, forested, shaded area by the side of the road; near ground, with some herbs and mosses, 18 June 2015, 1201– 1247 h; 1 male (LAR. 15.113), on Bukit Larut, circa N 4.86169, E 100.80005, 1165 ±5.0 m, shaded forest, on ground with leaf litter, 19 June 2015, 1013 h; 1 male (LAR. 15.120) and 1 female (LAR. 15.121), on Bukit Larut, circa N 4.86027, E 100.80280, 1277 ± 7.6 m, shaded forest, on ground with leaf litter, mating, 19 June 2015, 1216 h; 1 male (LAR. 15.187), on Bukit Larut, circa N 4.86626, E 100.78865, 920.4 ± 4.6 m shaded forest, on ground with leaf litter, 19 September 2015, 1925– 2049 h (all collected by M. K. Tan, S. T. Toh, K. N. Kamaruddin & Illias bin Abdul Rani).

1 male, 5 females, Singapore: 1 male ( ZRCAbout ZRC.ORT. 1023), Central Catchment Nature Reserve, Woodcutter Trail, freshwater swamp forest, 24 August 2013; 1 female ( ZRCAbout ZRC.ORT. 1059), Central Catchment Nature Reserve, Chestnut Track, lowland secondary forest, on leaf litter, 11 June 2014; 2 females ( CIL.04.1.4, CIL.04.1.5), Central Catchment Nature Reserve, MacRitchie Reservoir, lowland primary forest, on leaf litter, 9 November 2014; 1 female, MacRitchie Reservoir, lowland secondary forest, on ground, 11 January 2015; 1 female ( CIL.09.1.2), MacRitchie Reservoir, lowland primary forest, on ground, 6 May 2015 (all collected by M. K. Tan & H. Yeo) ( ZRCAbout ZRC).

New diagnosis. Tegmen with apex obtusely pointed in males and broadly rounded in females. Male epiproct triangular with two flattened protrusions near the baso-lateral margin; with lateral lobe triangular or roundly triangular, broader than apex of epiproct.

Description. Habitus as shown in Figs. 3View FIGURE 3, 8View FIGURE 8 A, 8 B. Head considerably shorter than pronotum ( Fig. 4View FIGURE 4). Frontal ridge narrow, parallel-sided above median ocellus and feebly widened below median ocellus, not widened around median ocellus. Vertex between eyes about as broad as frontal ridge between antennae. Eyes large. Antennae 19–21 -segmented, reaching or slightly surpassing posterior margin of pronotum. Pronotum long, 1.5 times in male and 1.4 times in female longer than wide, crossed by three transverse furrows ( Fig. 4View FIGURE 4); prozona 1.7 times in male and 1.8 times in female as long as metazona; anterior margin of prozona very obtusely rounded; posterior margin of metazona gently angularly rounded, sometimes emarginated in the middle; lateral carinae absent; median carina distinct. Prosternal spine straight, conical, with obtuse apex ( Fig. 7View FIGURE 7 A). Mesosternal lobes broad, about as wide as long or slightly wider; mesosternal interspace trapezoidal ( Fig. 7View FIGURE 7 A). Tegmen brachypterous ( Fig. 4View FIGURE 4). Hind wings absent. Hind femora stout, 3.7 times as long as maximal width of these femora; dorsal carina bluntly serrated. Hind tibiae with 6–7 outer dorsal spines and eight inner dorsal spines; outer apical dorsal spine absent. Hind tarsi short, not longer than half of hind tibiae; arolium large, almost reaching apex of claws. Abdominal tergites appear punctuated.

Male. Tegmen brachypterous and with obtusely pointed apex, not touching each other in rest position, 2.3 times as long as wide, reaching or slightly surpassing middle of third tergite ( Figs. 4View FIGURE 4 A, 4 B, 5 A–C). Tenth tergite with two very stout and obtuse, tubercle, and distinctly separated furculae on posterior margin ( Figs. 5View FIGURE 5 D–F). Epiproct triangular, with obtuse to subacute apex; with two flattened protrusions near the baso-lateral margin; lateral lobe triangular or roundly triangular, broader than apex of epiproct; median sulcus shallow, bordered by distinct parallel carinae (most distinct in the basal half) ( Figs. 5View FIGURE 5 D–F). Cercus when viewed dorsally, highly compressed and gently incurved, in apical third suddenly narrowed, with apex obtusely pointed; sometimes with dorsal distinct lobe in apical third, otherwise a tubercle or none ( Figs. 5View FIGURE 5 G–I). Subgenital plate conical, with obtuse apex. Male genitalia as shown in Fig. 6View FIGURE 6. Epiphallus bridge-shaped, moderately wide ( Fig. 6View FIGURE 6 A). Anchora highly sclerotized, elongated and triangular (sometimes feebly or slightly curved posteriorly), projecting dorso-apically and interiorly, surface granular, apex obtuse (sometimes appears slightly bulbous) ( Figs. 6View FIGURE 6 A, 6 B). Base of anchora forming a stout and short (never reaching middle of anchora) tubercle, also sclerotized and granular; sometimes slightly pointed ( Figs. 6View FIGURE 6 A, 6 B). Anterior projection of epiphallus long, forming at slightly more than 90 º angle with the anchora, apex obtuse. Lophi projecting dorso-apically, seen from behind broadly rounded to slightly bilobous, margins thickened. Oval sclerites present but weakly sclerotized ( Fig. 6View FIGURE 6 A). Ectophallic membrane thickened to form a dorsal and paired ventral ectophallic sclerites; dorsal ectophallic sclerite bridge-shaped ( Figs. 6View FIGURE 6 A, 6 B). Ventral ectophallic sclerite with two lobes: one elongated with obtuse apex, the other broadly rounded but both strongly sclerotized and granular ( Figs. 6View FIGURE 6 B, 6 C). Cingulum with apodemes as shown in Fig. 6View FIGURE 6 B. Zygoma with texture granulate prolonged anteriorly into the apodeme; apodeme highly sclerotized and granular, spatulate with obtuse apex ( Figs. 6View FIGURE 6 A, 6 B). Arch of cingulum with a ventro-apical projection elongated, slightly sinuous with obtuse apex. Basal and apical penis valves as shown in Fig. 6View FIGURE 6 D.

Female. Tegmen brachypterous and with broadly rounded apex, not touching each other in rest position, 1.9 times as long as wide, reaching hind margin of third tergite ( Figs. 4View FIGURE 4 C, 4 D, 7 B). Tenth abdominal tergite forming a shallow triangle in the middle on posterior margin, without lateral lobe ( Fig. 7View FIGURE 7 C). Epiproct elongated, separated into two parts by a middle transverse carina, with obtuse apex ( Fig. 7View FIGURE 7 C). Cercus bulbous basally, in apical third suddenly narrowed, with pointed apex ( Fig. 7View FIGURE 7 C, 7 D). Subgenital plate slightly longer than broad; posterior margin with large median angular projection and with lateral excisions ( Fig. 7View FIGURE 7 E). Ovipositor short, hook-like; dorsal valves smooth with apex gently curved dorsad; ventral valves with apex bent ventrad ( Fig. 7View FIGURE 7 D).

Colouration. Body brown or red brown, with light brown and blackish pattern. Head dark brown dorsally; frons light brown or brown. Antennae mostly brown or red brown, some parts lighter. Posterior part of the eye with a pale yellow stripe that continues to the lateral lobe of pronotum. Disc of pronotum brown, with black spots spaced out along posterior margin and sometimes anterior margin; lateral lobes with black spots spaced out along margins, brown with light brown stripe in dorsal part, beneath the light brown stripe is a blackish stripe. Light brown and blackish stripe of lateral lobe continue along lateral side of thoracic segments. Tegmen brown with large and shining black spot in the middle of tegmen, sometimes with yellow ring around the spot in females, sometimes black pigmentation extend basally along ventral margin in males. Fore and mid legs brown to red brown, sometimes with darker patches. Hind femur brown with ventrolateral area black; in males, three oblique and blackish bands, one near trochanter and two on medial area, almost indistinct in the dorsal half; hind knees brown. Hind tibia brown; its spines dark brown to black. Abdominal tergites brown with some black patterns; abdominal sternites red brown in the middle, sometimes with yellow stripes laterally. Thoracic sternites dark red brown anteriorly to pale brown posteriorly.

Measurements. See Table 1.

Variations. Shiny black spot on tegmen varies in size and shape, but always along the ventral half and somewhat in the midlength of tegmen; in males, sometimes black pigmentation extend basally along ventral margin; in females, yellow ring around black spot sometimes indistinct. Male epiproct may vary slightly with apex obtuse to subacute and protrusions near the baso-lateral margin sometimes bulbous to tuberculate. Male cercus can vary considerably, with dorsal lobe in apical third distinct, tuberculate or none.

Juvenile. Habitus as shown in Figs. 8View FIGURE 8 C, 8 D.

Distribution: Malay Peninsula (Peninsular Malaysia, Singapore).

Previously reported localities: Singapore, Peninsular Malaysia (Bukit Kutu, Klang Gates, Ulu Gombak, Tampin, Jerantut, Kuala Tahan) ( Willemse 1957).

New locality: Bukit Larut, Perak.

NRM

Swedish Museum of Natural History - Zoological Collections

ZRC

Zoological Reference Collection, National University of Singapore

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Orthoptera

Family

Baissogryllidae

Genus

Sedulia

Loc

Sedulia specularia ( Stål, 1875 )

Tan, Ming Kai, Robillard, Tony & Kamaruddin, Khairul Nizam 2016

2016
Loc

Sedulia specularia ( Stål, 1875 )

Tan 2013: 101
Storozhenko 2009: 19
Willemse 1957: 367
Dirsh 1956: 277
Miller 1934: 540
Sjostedt 1932: 40
Kirby 1910: 472
Stal 1878: 28

1878