Enyaliopsis carolinus Sjöstedt, 1913

Heller, Klaus-Gerhard, Chobanov, Dragan, Warchałowska-Śliwa, Elżbieta & Hemp, Claudia, 2022, Review of song patterns and sound production in armoured ground crickets (Orthoptera: Tettigoniidae: Hetrodini) with karyological data and taxonomic notes, Zootaxa 5120 (4), pp. 451-481 : 466

Enyaliopsis carolinus Sjöstedt, 1913

Material examined: 1 male [CH8625 (SR, CHR), 1 male ( TI)], TANZANIA, Minziro Forest Reserve nr Bukoba , Kagera Region, 1–15 xi 2018, leg. C. Hemp ; 1 male (SR), TANZANIA, Mingali Forest Reserve , Dodoma Region, 2019, leg. C. Hemp ; 1 male (SR), TANZANIA, Bereku Forest Reserve , Manyara Region, 2020, leg. C. Hemp.

References: Glenn 1991, Hemp 2021

Bioacoustics. Tegmina ( Fig. 3 ), stridulatory file ( Table 1 ), and spectrum of the song ( Fig. 6 ) do not show large differences to the typical Hetrodini pattern. The calling song ( Fig. 8C ) consists of long series of syllables (song type B in Fig. 5 ) with varying duration (1–40 s measured). Surprisingly also in SRR relatively large differences were found (12–42 Hz), which may be at least partly explained by temperature differences during recording (18–26ºC).

Genitalia. The central part of the genitalic sclerites (titillator) of our specimen ( Fig. 9C ) is similar to that figured by Glenn (1991).

Chromosomes: 2n = 26 (24 + neo-XY), FN = 29; pairs 1 and 2 meta/submetacentric, 3–12 acrocentric, neo-X acrocentric and neo-Y meta/submetacentric (1 male); thin C-bands in the paracentromeric region in all chromosomes including the sex chromosomes, and thick telomeric C-positive blocks in three acrocentric medium-sized pairs 3, 4, 5 ( Fig. 12C ).

Figures

FIGURE 3. Left male tegmina of Acanthoplus discoidalis (CH8946), Acanthoproctus cervinus (CH8947), Hetrodes pupus (CHelb8948), Enyaliopsis bloyeti (CH8853), E. carolinus (CH8625), E. ephippiatus (CH7737), E. jennae (damaged; CH8267), Gymnoproctus rammei (CH8763), Eugasteroides loricatus (CH7352), Spalacomimus stettinenesis, S. talpa (CH7354), S. verruciferus (CH7188). Scale 5 mm.

FIGURE 5. Oscillograms of song types in Hetrodini. Song consisting A of long trills (Cosmoderus femoralis CH8627), B of broken trills (including transitions to long echemes; B1 Spalacomimus talpa, B2 Enyaliopsis jennae, B3 Enyaliopsis ephippiatus) or C of regularly repeated echemes (C1 Spalacomimus spec. near verruciferus, C2 Eugaster guyoni). 1-min-sections.

FIGURE 6. Power spectra of male calling songs in Hetrodini species

FIGURE 8. Oscillograms of the calling songs in the genera Cosmoderus and Enyaliopsis (figures of E. iaculator based on figures and data from literature; see text). A Cosmoderus femoratus, B Enyaliopsis bloyeti. C Enyaliopsis carolinus, D Enyaliopsis ephippiatus, song type A, E Enyaliopsis spec. 1 (near ephippiatus), song type B, F Enyaliopsis iaculator, G Enyaliopsis jennae, H Enyaliopsis spec. 2 Mpwapwa. Left column overview (5-s-section), right column detail (250-ms-section).

FIGURE 9. Titillator and genitalic sclerites in Hetrodini, Enyaliopsina. First row A Cosmoderus femoralis (CH8627), B Enyaliopsis bloyeti (Kazimzumbwi), C Enyaliopsis carolinus (Minziro), D Enyaliopsis ephippiatus (Rau Forest); second row E Enyaliopsis spec. 1 near ephippiatus (Mwala), F Enyaliopsis jennae (Uluguru), G Enyaliopsis spec. 2 (Mpwapwa), H Enyaliopsis spec. 3 (East Chenene); third row I Gymnoproctus rammei (Puge Simbo), J Gymnoproctus spec. (East Chenene).

FIGURE 12. Examples of chromosome number and heterochromatin C-banding of mitotic male (A–C, G–K) and mitotic female complements (D), as well as diplotene/diakinesis (C, E, I on the right), and metaphase I (F) for the following Hetrodini taxa: A Cosmoderus femoralis, 2n = 24 + X0 (CH8626), B Enyaliopsis bloyeti, 2n = 28 + X0 (HE114), C Enyaliopsis carolinus, 2n =24 + neo-XY (CH8625), D Enyaliopsis ephippiatus, 2n = 26 + XX (female CH7849), E Enyaliopsis jennae, 2n = 26 + neo- XY (HE87), F Enyaliopsis spec. 2 Mpwapwa, 2n = 26 + X0 (CH8353), G Gymnoproctus rammei, 2n = 26 + X0 (CH8763), H Gymnoproctus spec., 2n = 26 + X0 (CH7953), I Spalacomimus magnus, 2n = 16 + X0 (CH7945), J Spalacomimus verruciferus, 2n = 22 + neo-XY (CH7897), K Spalacomimus spec. near verruciferus, 2n = 22 + neo-XY (CH7899). Bi-armed chromosomes (meta/submeta/subacrocentric) are marked with numbers (A, C, D, F–I); in the neo-XY system, sex chromosomes form association in diplotene (C) and metaphase I (I); arrowheads indicate interstitial C-bands in 1 (A, E, J, K) and 2 (I) pairs; asterisks (*) marked distal C-bands in 3, 4, 5 (C), 3, 4 (D), 2-heteromorphic (G, H) pair; X = neo-X and Y = neo-Y sex chromosomes. Scale bar = 10 µm.