Hecalus triundosus, He & Zhang & Mckamey & Zahniser, 2019

Hecalus triundosus View in CoL , sp. n.

( Figs 28–35 View FIGURES 28–35 )

Type material. Holotype: CHINA: Guangxi Province: ♂, Fangcheng County, Dongzhong, 8. xii. 2001, coll. Zhiqiang He. Paratype: 1 ♂, same data as holotype .

Description. Colour. Yellowish green. Frontoclypeus pale brown. Ocelli pale yellowish brown, margined with red brown. Eyes red brown, 1 white stripe medially margined with red brown line. Forewings transparent and veins pale in male. Hind wings hyaline, pale white.

Body. Length: male 7.0 mm to tip of the forewing. Vertex rounded anteriorly, little upturned anteriorly. Ocellus close to corresponding eye. Measurements of vertex length: interocular width: pronotal length (mm) 0.83: 1.12: 0.83.

Male genitalia: Subgenital plates with 6 setae laterally. Pygofer side subtriangular apically. Aedeagus with pair of processes subapically, curving dorsally; in caudal view, shaft constricted at about 1/4, 1/2 and 3/4 of its length in dorsal/ventral view, keeled ventrally; gonopore subapical on ventral side.

Female. Unknown.

Distribution. China ( Guangxi).

Etymology. The species name, an adjective, is derived from the Latin word “triundos” referring to the aedeagal shaft with three constrictions.

Remarks. This species resembles H. prasinus , but can be easily distinguished from the latter by: 1) aedeagal processes subapical; 2) aedeagal shaft constricted in caudal view at 1/4, 1/2 and 3/4 of its length in dorsal/ventral view.