Anaplecta truncatula Zhu & Che, 2022

Zhu, Jing, Zhang, Jiawei, Luo, Xinxing, Wang, Zongqing & Che, Yanli, 2022, Three cryptic Anaplecta (Blattodea, Blattoidea, Anaplectidae) species revealed by female genitalia, plus seven new species from China, ZooKeys 1080, pp. 53-97 : 53

Anaplecta truncatula Zhu & Che sp. nov.

Figures 9 , 15A-C

Type material.

Holotype: China • male; Hunan Prov., Shaoyang City, Baimaoping Town; 26°24.90'N, 110°36.04'E; 564 m; 19-21 August 2020; Lu Qiu, leg.; SWU-B-B-A060088.

Paratypes: China • 5 males and 3 females; same data as holotype; SWU-B-B-A060089 to 060096.

Diagnosis.

This species is similar to A. japonica Asahina, 1977 in body color and tegmina marking, but may be distinguished from the latter by the straight interstylar margin, Since A. japonica was described by external structures lacking genitalia, a comparison of this part is impossible. It is also similar to A. nigra Deng & Che, 2020, but can be distinguished as follows: 1) subgenital plate sub-rectangular in A. truncatula sp. nov., while A. nigra fan-shaped; 2) R1 needle-shaped in A. truncatula sp. nov., while arc-shaped in A. nigra ; 3) anterior margin of anterior arch with a strip-shaped protrusion in A. truncatula sp. nov., while the protrusion of A. nigra triangular; and 4) vestibular sclerite with two long spines in A. nigra , A. truncatula sp. nov. without.

Etymology.

The specific epithet is derived from the Latin word truncatulus, referring to the truncated end of the bifurcation of the paraprocts.

Measurements (mm).

Male: pronotum length × width: 1.28-1.37 × 1.98-2.05, tegmina length: 5.21-5.24, overall length: 6.23-6.32. Female: pronotum length × width: 1.37-1.48 × 1.97-2.13, tegmina length: 5.37-5.46, overall length: 6.58-6.70.

Description.

Coloration. Body pale yellowish brown, face yellow (Fig. 9A, B ). Antennae and maxillary palpus brown (Fig. 9D ). Pronotum yellowish brown, lateral edges hyaline (Fig. 9C ). Tegmina light yellowish brown, lateral edges pale or hyaline, 1/3 of the base black (Fig. 9E ). Hind wings infuscate, costal field and appendicular field darker than remaining parts (Fig. 9F ). Abdominal sterna, legs, and cerci yellow (Fig. 9B ).

Head and thorax. The distance between antennal sockets narrower than interocular space. Fifth maxillary palpus nearly triangular, slightly thicker and wider than others (Fig. 9D ). Pronotum subelliptic, posterior margin straight, lateral margin protruding and arc-shaped (Fig. 9C ). Tegmina with indistinct veins, the radius posterior veins of hind wings distinct, no transverse veins between M and CuA (Fig. 9E, F ). Front femur Type B2 (Fig. 9B ). Pulvilli absent, tarsal claws symmetrical.

Male genitalia. Paraprocts bifurcated at the base: the strip-shaped part truncated, the rest sheet-like (Fig. 9G ). Subgenital plate sub-rectangular, the center of anterior slightly concave, interstylar margin straight. Styli long, length ~ 1/2 of interstylar space (Fig. 9H ). L1 small, with curved and long filamentary structure. L2v bifurcated, with sharp apex. L2d narrow, nearly meniscus-shaped. L2vm sheet-like, irregular. L3 robust, uncinate part slightly sharp (Fig. 9I ). R1 needle-shaped, the proximal part sharply tapered and highly sclerotized (Fig. 9J ). R2 irregular, weakly sclerotized. R3 slightly curved, sheet-like (Fig. 9K ).

Female genitalia. Supra-anal plate nearly symmetrical. Paraprocts broad, not extending to the posterior margin of supra-anal plate. Intercalary sclerite short, nearly spindle-shaped. Right first valvifer finger-like. First valve robust. Second valve small, basally fused. Third valve broad. The anterior margin of anterior arch slightly sclerotized, with a bifurcated strip-shaped protrusion (Fig. 15A, B ). Basivalvula irregular, posterior margin and center with dense punctuations, the left of anterior margin extending back, connecting to crosspiece by membrane (Fig. 15A ). Laterosternal shelf slightly sclerotized, lateral margin slightly curved, with dense spinules at lateral base (Fig. 15C ).

Distribution.

China (Hunan).

Figures

Figure 9. Anaplecta truncatula Zhu & Che, sp. nov. holotype, male SWU-B-B-A 060088 A habitus, dorsal view B habitus, ventral view C pronotum, dorsal view D head, ventral view E tegmina F wings G supra-anal plate, ventral view H subgenital plate, dorsal view I left phallomere, dorsal view J-K right phallomere, dorsal view. Scale bars: 2 mm (A-F); 0.5 mm (G-K). Abbreviations: afd anal fold, A [1] the anterior one of the anal vein, A [s] the other element of vannal vein, cfd cubitus fold, CuA cubitus anterior, CuP cubitus posterior, L 1, L 2, L 3 sclerites of the left phallomere, L 2 d L 2 dorsal, L 2 v L 2 ventral, L 2 vm median sclerite, M media, Pcu postcubitus, R radius, RA radius anterior, RP radius posterior, R 1, R 2, R 3 sclerites of the right phallomere, ScP subcostal posterior.

Figure 15. A-C Anaplecta truncatula Zhu & Che, sp. nov. paratype, female SWU-B-B-A 060094 D-F Anaplecta basalis Bey-Bienko, 1969. Female SWU-B-B-A 060182 G-I Anaplecta nigra Deng & Che, 2020. Paratype, female SWU-B-B-A 060193 J-L Anaplecta bicolor Deng & Che, 2020. Paratype, female SWU-B-B-A 060195 A, D, G, J supra-anal plate, ventral view B, E, H, K supra-anal plate, dorsal view C, F, I, L subgenital plate, dorsal view. Scale bars: 2 mm. Abbreviations: a. a. anterior arch, bsv. basivalvula, cp. crosspiece, intc. s. intercalary sclerite, inst. f. intersternal fold, ltst. sh. laterosternal shelf, pp. paraprocts, pt. paratergites, v. I first valve, v. II second valve, v. III third valve, vst. s. vestibular sclerite.