Pentagonothrips antennalis Haga & Okajima

Zhao, Chao & Tong, Xiaoli, 2017, Two new species and two new records of fungus-feeding Phlaeothripinae from China (Thysanoptera, Phlaeothripidae), ZooKeys 694, pp. 1-10 : 4-5

Pentagonothrips antennalis Haga & Okajima Figs 9, 10

Pentagonothrips antennalis Haga & Okajima, 1979: 147.

Material examined.

CHINA, Hunan: 2 females and 1 male, Zhuzhou City, Yanling County, Shennong Valley (26°29'N, 114°01'E), in leaf litter, 16. ix. 2014 (Chao Zhao). Hubei: 1 male, Huanggang City, Yingshan County, Taohuachong (30°99'04"N, 116°02'76"E), in leaf litter, 23.iv.2014 (Chao Zhao).

Diagnosis.

Dorsal surface of body entirely reticulate; head longer than width, cheeks distinctly incut behind eyes; postocular setae well-developed with expanded at apex. Antennae 7-segmented, morphological segments VII and VIII fused with an incomplete suture, segments III and IV with two and three sense cones, respectively. Maxillary stylets short, wide apart. Pronotum with five pairs of well-developed major setae, strongly expanded at apex. Basantra absent. Fore tarsal tooth present in both sexes. Pelta transverse, shaped as a squashed ellipse, with distinctly polygonal reticulation. Sternite VIII with pair of stout or leaf-like posteromarginal setae submedially. Tube short than head. Pore plate of male absent.

Distribution.

China (Hunan, Hubei); Japan.

Remarks.

The monobasic genus, Pentagonothrips , was originally established from Japan ( Haga and Okajima 1979, Okajima 2006). P. antennalis is here recorded from China for the first time. This species is closely related to the species of the genus Mystrothrips Priesner in shape and structure. However, it can be separated from Mystrothrips by the following characters: Antennae 7-segmented; mesopresternum weak and membranous; anterior margin of mesoeusternum with a longitudinal median division (mesoeusternum anterior margin entire in Mystrothrips ); mesothoracic furcae closely fused together medially as well as metathoracic furcae joined together medially (but metathoracic furcae separated in Mystrothrips ).