Ogcogaster segmentator (Westwood, 1847)

Wu, Jingyu, Zheng, Yuchen & Liu, Xingyue, 2022, Phylogenetic implications of the complete mitochondrial genome of Ogcogaster segmentator (Westwood, 1847) and first record of the genus Ogcogaster Westwood, 1847 from China (Neuroptera, Myrmeleontidae, Ascalaphinae), Biodiversity Data Journal 10, pp. 85742-85742 : 85742

Ogcogaster segmentator (Westwood, 1847)

Ascalaphus (Ogcogaster) segmentator Westwood, 1847 Type locality: East Indies ( Westwood 1847: 69).

Helicomitus salvatoris Navás, 1924 Type locality: India (Punjab, Kalka) ( Navás 1924: 220). Synonymized by Sala de Castellarnau 1946: 120.

Perissoschema evae Mészáros & Ábrahám, 2003 Type locality: Pakistan (Islamabad Capital Territory, Margalla Hills, Pir Sohawa) ( Mészáros and Ábrahám 2003: 346). Synonymised by Hassan and Liu 2021: 427.

Ascalaphus (Ogcogaster) segmentator new record to China 虎纹凸腹蝶角蛉

Materials

Type status: Other material. Occurrence: recordedBy: Yinghui Lin; individualCount: 1; sex: female; Taxon : class: Insecta ; order: Neuroptera ; family: Myrmeleontidae ; Location : country: China; stateProvince: Yunnan; county: Dehong ; verbatimLatitude: 24.8607°N; verbatimLongitude: 98.2964°E; Event : year: 2019; month: 09; day: 22; Record Level : collectionCode: CAU

Description

Habitus: Fig. 1 ; head and thorax: Fig. 2 ; wing: Fig. 3 ; female genitalia: Fig. 4 .

Ogcogaster segmentator (Westwood, 1847) has been described before and we re-describe it here.

Body length 27.3 mm; forewing length 30.1 mm; hind-wing length 28.5 mm.

Head. Vertex yellowish-brown, with brown setae. Scape, pedicel and basal flagellum generally yellow, remaining part of flagellum generally dark brown. Compound eye divided by a transverse furrow, with upper part larger. Frons, gena, clypeus and labrum yellow, with pale yellow setae.

Thorax. Yellow, with obvious black stripes. Pronotum medially with a transversal black marking, laterally with dense pale setae. Meso- and metathorax with dense long seate, most pale, but some brown. Mesoprescutum and mesoscutellum each with a T-shaped black marking; mesonotum laterally with a pair of discontinuous reversed U-shaped black marking. Metanotum with a black marking.

Leg. Femur yellow, medially with a black marking; tibia yellow, distally dark brown; tibial spur stout, slightly curved; tarsus dark brown; pretarsal claw slightly curved, as long as tarsomere 5. Pro- and mesotarsomere 5 as long as combined length of tarsomeres 1-4. Metatarsomere 5 shorter than combined length of tarsomeres 1-4.

Wing. Forewing subcostal area yellow; crossveins near subcostal area each with a dark brown marking; pterostigma yellow; basal mediocubital crossveins each with a dark brown marking. Five presectoral crossveins present, with a biareolate cell; RP with five branches. Hind-wing marking similar to forewing, some indistinct dark brown markings posteriad pterostigma.

Abdomen. Yellow with many black stripes. Male genitalia. Tergite 9 very large, rhomboid-shaped with yellow and brownish pattern and medium-long stiff black hairs on margin caudally. In lateral view, tergite 9 with an acute apex caudo-ventrally. Ectropocts short, stiff, black setae, stronger inside than outside; in ventral views ectoprocts short, stiff, black seate, stronger inside than outside; in ventral view ectoprocts slightly curved downwards. Gonarcus (gonocoxites 11) hood-like, hairless, fused with parameres (gonocoxites 9), anterior side of parameres with tooth. Pelta present with seate, pulvini bag-like their hairs long and brownish. Setimere black, a bit longer than hairs on pulvini ( Mészáros and Ábrahám 2003). Female genitalia. Gonocoxites 8 present as a pair of ovoid structures, with sparse short setae; gonapophyses 8 small, with sparse short setae. Gonocoxites 9 base separated, apex close, with sparse short setae. Ectoproct narrowed in lateral view, distally rounded.

Diagnosis

Body yellow with black markings. Scape, pedicel and basal flagellum generally yellow, but remaining part of flagellum generally dark brown. Meso- and metathorax with dense long seate, most pale, but some brown. Femur medially with a black marking. Subcostal area yellow; crossveins near subcostal area each with a dark brown marking; pterostigma yellow.

Distribution

China (Yunnan); India (Himachal Pradesh, Jammu & Kashmir, Karnataka, Maharashtra, Punjab, Uttar Pradesh); Pakistan (Azad Kashmir, Gilgit-Baltistan, Islamabad) ( Ghosh and Sen 1977, Mészáros and Ábrahám 2003, Hassan and Liu 2021, Oswald 2022).

Figures

Figure 1. Ogcogaster segmentator (Westwood, 1847), female habitus. Scale bar: 10.0 mm.

Figure 2. Ogcogaster segmentator (Westwood, 1847), female. A head and thorax, dorsal view; B head, frontal view. Scale bar: 1 mm.

Figure 3. Ogcogaster segmentator (Westwood, 1847), female, wings. Abbreviations: C: costa; Sc: subcostal; Pt: pterostigma; RA: radius anterior; RP: radius posterior; MA: media anterior; MP: media posterior; CuA: cubitus anterior; Cup: cubitus posterior; A: anal veins. Scale bar: 10 mm.

Figure 4. Ogcogaster segmentator (Westwood, 1847), female, genitalia. A lateral view; B ventral view. Abbreviation: ect: ectoproct; gx: gonocoxites; gp: gonapophyses; S: sternite; T: tergite. Scale bar: 0.5 mm.