Corymeta amplectens ( Schaum, 1853 )

Naskrecki, Piotr & Guta, Ricardo, 2019, Katydids (Orthoptera: Tettigoniidae) of Gorongosa National Park and Central Mozambique, Zootaxa 4682 (1), pp. 1-119 : 103

Corymeta amplectens ( Schaum, 1853)

http://lsid.speciesfile.org/urn:lsid: Orthoptera .speciesfile.org:TaxonName:12605

( Figs. 33 A–D, 52D–F)

Diagnostic remarks. A slender, green katydid ( Fig. 33C ) that can be identified by the extreme development of the male 10 th abdominal tergite, which forms a long, downcurved process that surpasses the cerci and subgenital plate ( Figs. 33A, B ). The cerci are simple, incurved, and ending in a small, sharp spine. The ovipositor is long and pointed, with a very fine serration on the edges of the valvulae ( Fig. 33D ).

Bioacoustics. The call of C. amplectens is a series of widely spaced syllables, produced at the rate of 2 syllables/s; mean syllable duration is 0.0241 s (SD=0.012565, n=10); the peak frequency of the call is 22.3–25.2 kHz ( Figs. 52 D–F).

Distribution and natural history. C. amplectens was described from an unknown location in Mozambique ( Schaum 1853) and was subsequently recorded from Zambia, Tanzania ( Ragge 1980), and South Africa (material in SANC). In Gorongosa it is an uncommon species, found only during the rainy season, between December and March.

Measurements (1 male, 1 female). body w/wings: male 38, female 44; body w/o wings: male 24, female 22; pronotum: male 5, female 5; tegmen: male 29, female 36; hind femur: male 20, female 25; ovipositor: 13 mm.

Material examined (11 specimens). Mozambique: coll. Peters— 1 male (holotype) ( ZMHB) ; Cabo Delgado, Macomia, Quirimbas N.P., Muanona , elev. 124 m (-12.15117, 40.19542), 24–25.i.2014, coll. P. Naskrecki, H. Farooq, B. Nassongole— 1 female ( MCZ) ; Sofala, Gorongosa , Chitengo, E.O. Wilson Laboratory , elev. 42 m (-18.97775, 34.35130), 15–31.xii.2016, coll. R. Guta— 1 female, 1 male ( EOWL) ; GNP, Chitengo, E.O. Wilson Laboratory , elev. 48 m (-18.977722, 34.351333), 9.ii.–4.iii.2015, coll. P. Naskrecki and R. Guta— 1 female ; same locality, 16.ii.2015, coll. P. Naskrecki— 1 male ( MCZ) ; same locality, 25–31.xii.2016, coll. P. Naskrecki— 1 male ; same locality, 1–8.i.2019, coll. P. Naskrecki— 1 female ; GNP, Chitengo, Wilson Laboratory , elev. 48 m (-18.977722, 34.351333), 12.xii.2017, coll. N. Vicente— 1 male ; same locality, 15–31.xii.2017, coll. N. Vicente— 1 male ; GNP, Wilson Laboratory , (-18.977761, 34.35115), 15–30.xi.2016, coll. P. Naskrecki— 1 male ( EOWL) .

Figures

FIGURE 33. Mozambican Phaneropterinae: A. Corymeta amplectens, male abdominal apex, dorsal view; B. ditto, male abdominal apex, lateral view; C. ditto, male lateral; D. ditto, ovipositor; E. Catoptropteryx aurita, ovipositor; F. ditto, male abdominal apex, latral view; G. ditto, male lateral; H. Materuana eriki, male abdominal apex, lateral view; I. ditto, male abdominal apex, dorsal view; J. ditto, male lateral; K. Melidia brunneri, male abdominal apex, dorsal view; L. ditto, male lateral; M. ditto, ovipositor.

FIGURE 52. Oscillograms and power spectra of Mozambican Phaneropterinae: A–C. Terpnistria zebrata; D–F. Corymeta amplectens; G–I. Horatosphaga serrifera; J–L. Tylopsis bilineolata.