Anaulacomera (Analaucomera) caudata, Fianco, 2021

Fianco, Marcos, 2021, Nine new species of the Anaulacomerina subtribe of katydids (Orthoptera Tettigoniidae: Phaneropterinae: Phaneropterini) from Brazil, Zootaxa 4952 (1), pp. 33-54 : 37-39

Anaulacomera (Analaucomera) caudata sp. n.

Figures 1B , 3 , 6B

Diagnosis: The new species can be readly distinguished from its congeners by the form of male cerci, that possess the apex truncated, dilated, with a lateral triangular spine-like process, and a medial triangular process, much larger than lateral, with apical margin dentate.

Etymology: The specific epithet derived from Latin (caudātus = tail) refers to the form of male cerci, similar to a tail of a fish.

Description: Holotype male ( Fig. 3 , 6B ): Medium-sized, somewhat yellowish greenish, probably green in life. Head ( Fig. 3B,C ): Fastigium of the frons triangular; apex in a protuberance; with a golden oval ocellus on middle. Antennal sockets dilated at base. Fastigium of the vertex triangular; globose at apex; with a large sulcus on middle that not reaches apex. Thorax: Pronotum plain colour. Pronotal disc ( Fig. 3C ) with anterior margin concave and posterior margin convex; furcal sulci bell-shaped; same width in all extension. Lateral lobes ( Fig. 3D ) smaller than pronotal disc, longer than wide; anterior margin concave with a depression on basal part, posterior margin convex but almost straight; humeral sinus presenting an angle of ca. 90º. Tegmina ( Fig. 3A , 6B ) shorter than hindwings; anal and costal margins almost parallel; Sc almost straight; R with three major bifurcations, only the proximal reaches costal margin; M long, following R in all extension; MP leaving M after the middle of tegmina; MA with two bifurcation; CuA very long and curved, with three bifurcations; four veins between MP and CuA; A1 yellowish, stridulatory area with brownish stains in the proximal region ( Fig. 3F, G ). Mesobasisternum ( Fig. 3E ) elevated on middle; anterior margin convex; lateral lobes small, distant in the posterior margin. Metabasisternum ( Fig. 3E ) triangular, elevated on middle; anterior margin straight; lateral lobes demilune shaped, almost touching in the posterior margin. Abdomen: Tergite X large, posterior margin straight. Epiproct moderately large, as broad as long. Cercus ( Fig. 3H, I ) not as long; apex dilated with one lateral triangular spine-like process; medial process triangular, much larger than lateral, apical margin dentate. Subgenital plate ( Fig. 3H, I ) trapezoidal; posterior processes rhomboid, larger than long. Genitalia ( Fig. 3J, K ): Phallus, rounded, membranous but titillator and anterophallic apodemes sclerotized; titillator’s sclerites fused on middle, with tip exposed and more sclerotized, possessing teeth like microstructures; sclerites of ventral fold of dorsal lobe quite large, tips more sclerotized and exposed in the basal area; lower fold of ventral lobe quite large; dorsal lobe as large as ventral lobe.

Female: As large as male, general characteristics as in male. Tergite X not expanded. Ovipositor slightly curved up, twice longer than pronotum; lateral margins of dorsal and ventral valves brownish, with small serrulations. Cercus conical, as long as subgenital plate. Subgenital plate wider, at base, than long; triangular; apex bifid; posterior processes touching in the apex.

Type Material: Holotype male, ‘ DPTO ZOOL \ UF –PARANÁ’ ‘ Morretes – PR Brasil \ ( IAPAR) \ 10– 17.IX.1984 \ C.I.I.F. (Luminosa)’ ‘ DZUP 366828 ’. Paratypes: One male, same data, except ‘ 11.III.1985 ’, ‘ DZUP 366796 ’; one male, same data, except ‘ 02–03.XII.1984 ’, ‘ DZUP 366799 ’; one male, same data, except ‘ 18.IV.1985 ’ ‘ DZUP 366800 ’; one male, same data, except ‘ 21–27.VIII.1984 ’ ‘ DZUP 366801 ’; one male, same data, except ‘ 03– 10.IX.1984 ’ ‘ DZUP 366888 ’; one male and one female, same data, except ‘ 17. V .1985’ ‘ DZUP 366747 ’; one male, same data, except ‘ 19.IV.1985 ’ ‘ DZUP 366882 ’; one male, same data, except ‘ 20.XII.1984 ’ ‘ DZUP 366857 ’; one male, same data, except ‘ 22.IV.1985 ’ ‘ DZUP 366889 ’; one female, same data, except ‘ 27.III.1985 ’ ‘ DZUP 366782 ’; one female, same data, except ‘ 13.III.1985 ’ ‘ DZUP 366795 ’, and one female, same data, except ‘ 16–23.VII.1984 ’ ‘ DZUP 366783 ’.

Measurements (mm): Holotype: BL: 16.2; TegL: 29.3; HW: 2.4; PrL: 3.2; PrH: 3; FLiii: 15.5; TLiii: 19; SPL: 2.5; CL: 2.3; SFL: 1.28; TN: 37.

Remarks: A. (Anaul.) caudata sp. n. undoubtedly belongs to the Subinermis species group of Anaulacomera (Anaulacomera) , and among the seven species of the group, it is closest related to A. (Anaul.) metropolitana Piza. The new species can be differentiated from the latter species by the form of: male cercus, thicker in A. (Anaul.) caudata sp. n.; the external process of the cercus, short and triangular with large base in the new species, and in A. (Anaul.) metropolitana it is long and triangular with thin base; the subgenital plate, short and wide with apex bidentate in the new species, while it is long, thin and tridentate in A. (Anaul.) metropolitana (see Fig. 4 in Piza (1952)). The presence of two apical processes or branches on the male cercus also distinguishes the new species from all the other species of the group. This unique process of the other species is not undivided nor undifferentiated, as it is possible to see in A. (Anaul.) spatulata Hebard and A. (Anaul.) subinermis Caudell. In the OSF some photos of individuals of A. (Anaul.) metropolitana are helpful, however they clearly do not belong to this nominal species, not withstanding that they were identified by S. Toledo Piza.

Figures

FIGURE 1. Occurrence map from the new species of Anaulacomerina from Brazil. A: circles: species from southeastern, north and mid-central Brazil; star: species from Parana State, southern Brazil; B: circles: species from Paraná State, São José dos Pinhais and Morretes municipalities.

FIGURE 3. A. (Anaulacomera) caudata sp. n. A: male habitus; B: head, dorsolateral view; C: head and pronotum, dorsal view; D: pronotum, lateral view; E: meso and metabasisternum, ventral view; F: stridulatory area, dorsal view; G: stridulatory file; H: terminalia, lateral view; I: terminalia, ventral view; J: phallus, ventral view; K: phallus, dorsal view. Scale bars: A = 1 cm; B–F, H–I = 2 mm; G = 1 mm; J–K = 0.5 mm.

FIGURE 4. A. (Anaulacomera) rubrovittata sp. n. A: male habitus; B: head, dorsolateral view; C: head and pronotum, dorsal view; D: pronotum, lateral view; E: meso and metabasisternum, ventral view; F: stridulatory area, dorsal view; G: stridulatory file; H: terminalia, lateral view; I: terminalia, ventral view. Scale bars: A = 1 cm; B–F, H–I = 2 mm; G = 1 mm.

FIGURE 6. Left tegmina of Anaulacomera (Anallomes) and A. (Anaulacomera). A. (Anall) sylviae sp. n. (A), A. (Anaul.) caudata sp. n. (B), A. (Anaul.) rubrovittata sp. n. (C), A. (Anaul.) zefai sp. n. (D). Veins = black: Sc; green: R; blue: M; red: Cu; yellow: A1