Allacta hainanensis (Liu et al., 2017) Liu et al., 2017

He, Jia-Jun, Zheng, Yu-Hong, Qiu, Lu, Che, Yan-Li & Wang, Zong-Qing, 2019, Two new species and a new combination of Allacta (Blattodea, Ectobiidae, Pseudophyllodromiinae) from China, with notes on their behavior in nature, ZooKeys 836, pp. 1-14 : 6-8

Allacta hainanensis (Liu et al., 2017) comb. n. Figs 25-36, 45

Temnopteryx hainanensis Liu et al., 2017: 179.

Type material examined.

Holotype of Temnopteryx hainanensis , male (SHEM), CHINA, Hainan Province, Changjiang, Bawangling, 23-24-IX-2011, Xian-Wei Liu leg. Other material examined. CHINA, Hainan Province: 1 male and 2 females (SWU), Jianfengling, Mingfenggu, 23-28-IV-2015, Lu Qiu & Qi-Kun Bai leg. 1 male (SWU), Diaoluoshan, Lingshui, 1050m, 10-VIII-2010, Guo Zheng leg.

Diagnosis.

This species can be easily distinguished from all other congeners by the much reduced tegmina and wings, which only reaching the third tergum. The coloration pattern (body light yellowish brown, with large brown areas dorsally) is also unusual in this genus (see Figs 25 and 45).

Measurements (mm).

Male, pronotum: length × width 4.3-4.6 × 6.9-7.4, tegmina length: 5.5-5.7, overall length: 17.0-17.2; female, pronotum: length × width 4.3-4.5 × 5.7-6.5, tegmina length: 4.6-4.9, overall length: 12.6-13.1.

Description.

Male. Body dark brown with yellowish (Fig. 25). Frons yellowish brown, vertex with dark brown bands. Antenna brown. The fifth of maxillary palpomere brown (Fig. 26). Pronotum yellowish brown, lateral and hind border translucent, and disc with two dark brown stripes and an irregular pale yellowish brown macula. Tegmina brown, the inner border dark brown, lateral border pale yellowish brown (Fig. 25). Legs pale yellowish brown. Abdominal terga brown, lateral margin with blackish brown spots. Cerci yellowish brown, base brown (Fig. 26).

Vertex with interocular space obviously narrower than the distance between antennae sockets (Fig. 27). Third and fourth maxillary palpomeres approximately same length, and both significantly longer than the fifth. Pronotum nearly triangular, the front margin blunt and round; the hind margin nearly flat (Fig. 28). Tegmina and hind wings reduced; tegmina nearly quadrilateral, veins inconspicuous, only reaching the third tergum of the abdomen (Fig. 30); hind wings short and narrow, about half the length of the tegmina, and veins simple with two longitudinal veins (Fig. 31). Anteroventral margin of front femur type B3 (Fig. 29). Hind legs first tarsus approximately same length to the sum of other four tarsomeres. Pulvilli present only on the fourth tarsomere, tarsal claws symmetrical and unspecialized, arolia present (Figs 25, 26).

Female similar to the male.

Male abdomen and genitalia. Abdominal terga unspecialized. Supra-anal plate nearly triangular, symmetrical, the middle of hind margin with incisions. Paraproct plates simple, similar, sheet-like, apex with scattered bristles (Fig. 32). Subgenital plate symmetrical, lateral margin curved and blunt; styli nearly cylindrical, arising in two concavities of hind margin; the right stylus slightly longer than the left; and the hind margin with W-shaped concave (Fig. 34). Left phallomere complex (Fig. 33). Median phallomere stem slender, bending near apex, apex sharp, base forked, median phallomere subsidiary sclerite C-shaped clavate, apex gradually sharper (Fig. 35). The hook-shaped phallomere on the right of subgenital plate, and the hook short (Fig. 36).

Remarks.

Liu et al. (2017) placed this species in Temnopteryx and stated it resembles T. dimidiatipes Bolivar, 1890 from the Philippines. However, Princis (1957) erected Lobopterella and treated T. dimidiatipes as the type species. Thus Lobopterella dimidiatipes belongs to subfamily Blattellinae and does not display the characteristic of Pseudophyllodromiinae, viz. the hook-shaped phallomere on the right side ( Roth 1988).

Through field efforts, we obtained several specimens with reduced tegmina and wings from Hainan Island. After comparing them with the type specimen (deposited in SHEM), we confirmed that our specimens are Temnopteryx hainanensis Liu et al., 2017. After dissecting the male genitalia, we found the hook-shaped phallomere of Temnopteryx hainanensis is on the right, and the pulvilli is present only on the fourth tarsomere, thus, Temnopteryx hainanensis should be placed in the pseudophyllodromiine genus Allacta as Allacta hainanensis (Liu et al., 2017) comb. n.

This species is placed in the hamifera species group by having two lobes which forming a keel-like ridge, and in having the dark portion of the pronotum reduced to two longitudinal bands.

Distribution.

China (Hainan).