Jacobsonina subapiculata Yao & Che, 2024

Yao, Wen-Wen, Li, Qian-Qian, Li, Lin-Wei, Wang, Zong-Qing & Che, Yan-Li, 2024, Discovery of four new Chinese species of Jacobsonina Hebard, 1929 and Blattella Caudell, 1903 (Blaberoidea: Blattellidae), Zootaxa 5474 (4), pp. 427-440 : 434

Jacobsonina subapiculata Yao & Che , sp. nov.

Fig. 3

Type material. Holotype: CHINA, male; Nabang Town, Dehong Dai and Jingpo Autonomous Prefecture , Yunnan Province; 19 Aug 2015; Xinran Li, Zhiwei Qiu leg. Paratype: CHINA, 1 male & 1 female; Nabang Town, Dehong Dai and Jingpo Autonomous Prefecture , Yunnan Province; 19 Aug 2015; Xinran Li, Zhiwei Qiu leg.

Measurements (mm). Male: pronotum length × width 1.9–2.8 × 1.8–2.3, tegmina length 7.9–8.1, body length 9.0–9.3, overall length 9.6–10.6. Female: pronotum length × width 2.5–2.6 × 2.1–2.2, tegmina length 7.7–8.4, body length 7.7–9.1, overall length 9.6–9.7.

Description. Male. Coloration. Body brown ( Fig. 3A, B ). Ocelli pale white; antennae brown; maxillary palpi with fourth and fifth palpi brown, others yellowish brown; pronotum brown ( Fig. 3E, F ). Head. Vertex slightly exposed, interocular space slightly exceeding eye width, distinctly narrower than the width of antennal sockets. Fourth and fifth maxillary palpi of equal length, slightly shorter than the others. Pronotum. Posterior margin of pronotum slightly convex in the middle ( Fig. 2D ). Tegmina and wings. Both fully developed, extending beyond the end of abdomen ( Fig. 3F ). M and CuA of wings without branching, apical triangle narrow. Legs. Anteroventral margin of front femur Type B 3 ( Fig. 3I ), pretarsal claws symmetrical and unspecialized. Abdomen and genitalia. Abdominal tergum unspecialized. Supraanal plate symmetrical, middle posterior margin slightly concave. Paraprocts dissimilar, the left one with two forks apically, the right one with strong spinules on the surface ( Fig. 3J ). Subgenital plate symmetrical, middle posterior margin obviously convex, with many spinules ( Fig. 3N ). Styli absent. Hook of left phallomere with V-shaped incision on terminus. Accessory sclerite of left phallomere slender ( Fig. 3K ). Median phallomere curved in the middle, with a narrowed apex ( Fig. 3L ). Right phallomere consist of three parts, left part shaped like two writing brush tips, one long and one short ( Fig. 3 M-R3, R4); middle part contains an inverted Y-shaped sclerite and a bent sclerite ( Fig. 3 M-R1, R2); right part contained one sclerite ( Fig. 3 M-R5), irregularly shaped ( Fig. 3M ). Female. Like male (with the exception of the postabdomen including genitalia).

Diagnosis. This species is similar to J. aliena (Brunner von Wattenwyl, 1893) , but differs from J. subapiculata sp. nov. in the following characters: 1) J. subapiculata sp. nov. with a sharp protrusion on the posterior margin of subgenital plate, whereas J. aliena with a spherical protrusion. 2) The accessory sclerite of the left phallomere slender in J. subapiculata sp. nov., while tufted in J. aliena . 3) The accessory sclerites of median phallomere absent in J. subapiculata sp. nov., while present in J. aliena .

Etymology. The specific epithet “ subapiculatus ” comes from Latin and means that the subgenital plate has a sharp apex.

Figures

FIGURE 2. Jacobsonina plicata Yao & Che, sp. nov. A, B, E–N male C, D female A holotype, dorsal view B holotype, ventral view C paratype, dorsal view D paratype, ventral view E head, ventral view F pronotum, dorsal view G tegmen, ventral view H hind wing, ventral view I front femur, ventral view J supra-anal plate, ventral view K median phallomere, ventral view L left phallomere, ventral view M right phallomere, ventral view N subgenital plate, ventral view Scale bars: 5 mm (A, B, C, D, G, H); 1 mm (E, F, I, J, K, N); 0.5 mm (L, M)

FIGURE 3. Jacobsonina subapiculata Yao & Che, sp. nov. A, B, E–N male C, D female A holotype, dorsal view B holotype, ventral view C paratype, dorsal view D paratype, ventral view E pronotum, dorsal view F head, ventral view G tegmen, ventral view H hind wing, ventral view I front femur, ventral view J supra-anal plate, ventral view K left phallomere, ventral view L median phallomere, ventral view M right phallomere, ventral view N subgenital plate, ventral view Scale bars: 5 mm (A, B, C, D, G, H); 1 mm (E, F, I, J, L, N); 0.5 mm (K, M)