Tinodes aviformis Peng & Sun, 2024

Peng, Lang, Deng, Zhen, Zhang, Yu-hua, Wang, Meng, Sun, Chang-hai & Wang, Bei-xin, 2024, Seven new species and four new records of Psychomyiidae (Insecta, Trichoptera) from China, ZooKeys 1188, pp. 197-218 : 197

publication ID

https://dx.doi.org/10.3897/zookeys.1188.112359

publication LSID

lsid:zoobank.org:pub:1D4965D8-1D46-41DE-95D6-5B05BFEFD9D1

persistent identifier

https://treatment.plazi.org/id/6B523126-44D5-4152-BC2B-3C8971A42BCD

taxon LSID

lsid:zoobank.org:act:6B523126-44D5-4152-BC2B-3C8971A42BCD

treatment provided by

ZooKeys by Pensoft

scientific name

Tinodes aviformis Peng & Sun
status

sp. nov.

Tinodes aviformis Peng & Sun sp. nov.

Fig. 7A-E View Figure 7

Type materials.

Holotype: China • 1♂; Hainan Province, Sanya City, Tianya district, Fuwan reservoir; 18°16.80'N, 109°28.94'E; alt. 60 m; 25-vii-2022; light trap; L. Peng & H. Zang leg.; NJAU Tricho-20220725-0003.

Diagnosis.

This species is similar to Tinodes igok Kimmins, 1955 from Malaysia in the composition and morphology of the male genitalia, but it can be distinguished by: (1) two unpaired inner branches of the phallic sheath processes, of which one is short and straight and the other one curved, whereas both branches are curved in T. igok ; (2) the mesal digitate process of each coxopodite is shorter than the harpago, curved, and with a sharp apex in ventral view, but is undulated and almost the same length as the harpago in T. igok ; and (3) the phallic guide is divided into two branches with the dorsal one extending backward beyond the coxopodites in lateral view, rather than having only one uncinate branch that is not longer than the coxopodites in T. igok .

Description.

Male. Length of each forewing 3.1 mm (n = 1). Specimen in alcohol with compound eyes black, antennae yellowish white; thorax and legs brown, wings light brown without any distinctive markings; abdomen dark brown dorsally, pale yellow ventrally. Genitalia. Sternum IX transversely subrectangular in ventral view (Fig. 7A View Figure 7 ); subtriangular in lateral view (Fig. 7C View Figure 7 ). Tergum IX covered with microchaetae, with anterior margin slightly sinuate and middle of posterior margin produced posterad in dorsal view (Fig. 7B View Figure 7 ); broader and subapically angled slightly caudad in lateral view (Fig. 7C View Figure 7 ). Segment X membranous, closely fused with tergum IX, its posterior margin nearly truncate in dorsal view (Fig. 7B View Figure 7 ); subrhomboid in lateral view (Fig. 7C View Figure 7 ). Superior appendages each with distal half setose, clavate, and with apex rounded in lateral view (Fig. 7C View Figure 7 ); parallel-sided in dorsal view (Fig. 7B View Figure 7 ). Phallic sheath process consisting of paired lateral branches and unpaired inner branches; paired lateral branches compressed and spoon-like, semicircular, and resembling nesting bird in lateral view (Fig. 7C, E View Figure 7 ), each with several strong spines at middle near ventral edge and distal half setose; fused basally, resembling pair of clam shells in ventral view (Fig. 7D View Figure 7 ); two unpaired inner branches strongly sclerotized (Fig. 7D, E View Figure 7 ); one of them straight, one curved; phallus slightly extending beyond tip of phallic sheath process, with distal end membranous in ventral view (Fig. 7D View Figure 7 ), base and apex swollen in lateral view (Fig. 7E View Figure 7 ); ejaculatory duct slender, with subapex S-shaped in lateral view (Fig. 7C View Figure 7 ). Phallic guide with subapex wider and then divided into two branches in lateral view (Fig. 7C View Figure 7 ), dorsal branch slender, curved downwards distally and gradually narrowed to sharp apex; ventral branch short. Coxopodites elliptical in lateral view (Fig. 7C View Figure 7 ); fused with each other basally in ventral view (Fig. 7A View Figure 7 ), each with posterodorsal angle digitate and posterior margin having tiny submesal digitate process; harpago setose, small, and simple (Fig. 7A, C View Figure 7 ).

Etymology.

The Latin masculine adjective Tinodes aviformis , meaning “bird-shaped,” and refers to the shape of the pair of lobes of the lateral phallic sheath process in lateral view.

Distribution.

China (Hainan).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Trichoptera

Family

Psychomyiidae

Genus

Tinodes