Spinomarmessoidea damingenis, Gao & Li, 2023

Gao, Hao-Ran & Li, Yong-He, 2023, First report of the genus Spinomarmessoidea (Phasmatodea, Lonchodidae Necrosciinae) from China, with the description of a new species, Zootaxa 5239 (2), pp. 280-288 : 282-285

Spinomarmessoidea damingenis sp. nov.

( Figs. 2–4 , 5A )

Materials. Holotype. 1♀, China, Guangxi ZhuangAutonomous Region, Nanning City, Wuming District , Damingshan Nature Reserve [kffiƜÞṂṘṁffl], 23°28′09″N, 108°26′10″E, 4.X.2021, Hao Lu ( YNAU) . Paratype. 1♀, China, Guangxi Zhuang Autonomous Region, Nanning City, Wuming District , Damingshan Nature Reserve [kffi ƜÞ ṂṘṁffl], 23.VIII.2021, Shang-Qia Fu & Ning Huang ( YNAU) .

Other materials. 2 eggs, dissected from the holotype.

Diagnosis. This species can first be related to the genera Spinomarmessoidea and Marmessoidea by the general egg morphology while being separated from other genera of the subfamily. This new species can be distinguished from Marmessoidea by both sides of the mesonotum median line with aligned spines. Although the spines on the mesonotum in the new species are not as distinct and variable as in the other two species, and the two type-localities are far apart in distance, this feature alone is not sufficient to divide the new species into a new genus.

The female of the new species is very similar to S. raja . Neither of them has distinct and large spines on their heads. But they can still be distinguished by the difference in the spines on the mesothorax supination and profemora slightly longer than metafemora. The spines on the mesonotum of S. damingensis are not swollen on a common base.

Etymology. The new species is named after the type-locality, Mt. Daming, Wuming District, Guangxi Zhuang Autonomous Region, China.

Description. Female. Small-sized. Robust. General coloration variegated with black and brown. Winged.

Head. Longer than wide. Oval and flat, with many tubercles generally in 4 rows. Ocelli absent. The midline appears as a black longitudinal stripe and is divided into two at the middle of the compound eyes. There are two black longitudinal stripes behind the compound eyes, the upper one parallel to the middle stripe and darker than the lower one. Compound eyes variegated in life and brown in death. Antennae filiform, longer than the apex of the forelegs, generally dark with some light bans; scapus flat; pedicellus cylindrical, slightly thicker than the rest of the segments.

Thorax. Pronotum general dark coloration, sparsely covered with many tiny granules; transverse and longitudinal sulci crossing at mid-area and distinct. There are many short spines on the mesonotum generally in 4 longitudinal rows; 8 spines that belong to the two rows near the middle largest; the spines gradually become smaller from the anterior to the posterior; the posterior spines gradually become small granules ( Fig. 2C ). The larger spines apex dark. Mesopleurae dark and relatively smooth, without distinct tubercles. Mesosternum covered with small tubercles. Metanotum smooth. Metapleurae and Metasternum light brown and sparsely covered with tubercles.

Abdomen. Dark and cylindrical. Tergites II–V almost equal in length. Tergite VI shorter and suddenly narrower than the preceding tergites. Sternite II with a distinct median carina. Anal segment triangular in dorsal view, with a distinct median carina. Praeopercular organ tongue-shaped, flat and indistinct ( Fig. 3D ). Operculum dark and scoopshaped, apex blunt ( Fig. 3D ). Cercus short, reaching the end of anal segment, cylindrical, setose, with rounded apex.

Legs. Unarmed, dark with light banded. Profemora incurved basally. Tarsus is composed of 5 tarsomeres (the 4th tarsomere shortest): the basiprotarsomere is about the length of the next 4 tarsomeres combined; the basimesotarsomere and basimetatarsomere shorter than basiprotarsomere, and shorter than each next 4 tarsomeres combined.

Wings. Tegmen dark brown with black veins. The gibbus rounded and raised. The costal area of hind wings generally dark and variegated with some yellow. The anal area of hind wings pale brown ( Fig. 3B ). Apex of hind wings reaches the tergite IX.

Male. Unknown.

Egg. The description of the eggs is based on two eggs dissected from the holotype, which may not be fully formed.

Measurements [mm]: Length: 1.7; width: 1.0; height: 0.9. Capsule dark yellow, covered with tiny brown granules, rice-shaped, posterior pole rounded ( Fig. 4 ). Operculum rounded and brown, covered with tiny brown granules that are denser than other parts; a relatively larger elevation on the top of the center. Micropylar plate expands to the left and right sides with white edges, the middle expands up and down, and the two sides that expand out expand up and down again ( Fig. 4A ). Plate gap white. Median line indistinct.

Measurements. See Table 1 .

Length (mm) Holotype (♀)

Paratype (♀)

Body 60.6

61.2

Head 3.7

4.0

Antennae 41.1

-

Pronotum 3.6

3.7

Mesonotum 7.8

8.5

Profemora 14.6

15.0

Mesofemora 9.0

9.6

Metafemora 14.2

14.5

Protibiae 13.1

13.6

Mesotibiae 8.6

8.6

Metatibiae 12.1

12.2

Tegmen 6.0

6.4

Hind wing 40.8

41.5

Distribution. China [Guangxi: Damingshan ( Fig. 5B )]. Only known from type-locality so far.

Chinese common name. kffiḦṃHdz.

Figures

FIGURES 2. Spinomarmessoidea damingensis sp. nov., female, type materials. A. holotype habitus, dorsal view; B. holotype habitus, lateral view; C. holotype habitus, ventral view; D. paratype habitus, dorsal view.

FIGURES 3. Spinomarmessoidea damingensis sp. nov., female, holotype. A. tegmen; B. hind wing; C. terminalia, dorsal view; D. terminalia, ventral view; E. terminalia, lateral view.

FIGURES 4. Spinomarmessoidea damingensis sp. nov., egg. A. dorsal; B. ventral.

FIGURES 5. Spinomarmessoidea damingensis sp. nov.. A. Living photo (in the lab); B. habitat, Damingshan Nature Reserve, Guangxi.

Tables

TABLE 1. Measurements of S. damingensis sp. nov. Length (mm) Holotype (♀) Body 60.6

Length (mm)	Body	60.6	Paratype (♀)
Body	60.6
Head	Antennae	Pronotum	Mesonotum	Profemora	Mesofemora	Metafemora	Protibiae	Mesotibiae	Metatibiae	Tegmen	Hind wing	3.7	41.1	3.6	7.8	14.6	9.0	14.2	13.1	8.6	12.1	6.0	40.8	4.0	-	3.7	8.5	15.0	9.6	14.5	13.6	8.6	12.2	6.4
Antennae	Pronotum	Mesonotum	Profemora	Mesofemora	Metafemora	Protibiae	Mesotibiae	Metatibiae	Tegmen	Hind wing	41.1	3.6	7.8	14.6	9.0	14.2	13.1	8.6	12.1	6.0	40.8	-	3.7	8.5	15.0	9.6	14.5	13.6	8.6	12.2	6.4
Pronotum	Mesonotum	Profemora	Mesofemora	Metafemora	Protibiae	Mesotibiae	Metatibiae	Tegmen	Hind wing	3.6	7.8	14.6	9.0	14.2	13.1	8.6	12.1	6.0	40.8	3.7	8.5	15.0	9.6	14.5	13.6	8.6	12.2	6.4
Mesonotum	Profemora	Mesofemora	Metafemora	Protibiae	Mesotibiae	Metatibiae	Tegmen	Hind wing	7.8	14.6	9.0	14.2	13.1	8.6	12.1	6.0	40.8	8.5	15.0	9.6	14.5	13.6	8.6	12.2	6.4
Profemora	Mesofemora	Metafemora	Protibiae	Mesotibiae	Metatibiae	Tegmen	Hind wing	14.6	9.0	14.2	13.1	8.6	12.1	6.0	40.8	15.0	9.6	14.5	13.6	8.6	12.2	6.4
Mesofemora	Metafemora	Protibiae	Mesotibiae	Metatibiae	Tegmen	Hind wing	9.0	14.2	13.1	8.6	12.1	6.0	40.8	9.6	14.5	13.6	8.6	12.2	6.4
Metafemora	Protibiae	Mesotibiae	Metatibiae	Tegmen	Hind wing	14.2	13.1	8.6	12.1	6.0	40.8	14.5	13.6	8.6	12.2	6.4
Protibiae	Mesotibiae	Metatibiae	Tegmen	Hind wing	13.1	8.6	12.1	6.0	40.8	13.6	8.6	12.2	6.4
Mesotibiae	Metatibiae	Tegmen	Hind wing	8.6	12.1	6.0	40.8	8.6	12.2	6.4
Metatibiae	Tegmen	Hind wing	12.1	6.0	40.8	12.2	6.4
Tegmen	Hind wing	6.0	40.8	6.4
Hind wing	40.8