Isoscelipteron eucallum Yang & Liu, 1999

Li, Di, Aspöck, Horst, Aspöck, Ulrike & Liu, Xingyue, 2018, A review of the beaded lacewings (Neuroptera: Berothidae) from China, Zootaxa 4500 (2), pp. 235-257 : 248-249

Isoscelipteron eucallum Yang & Liu, 1999

Isoscelipteron eucallum Yang & Liu, 1999: 101 . Type locality: China (Fujian: Sangang ).

Diagnosis. This species is characterized by the male tergum 9 + ectoprocts posteriorly truncate and the gonocoxites 11 narrow medially ( Yang & Liu 1999).

Description. Male. Body length 8.0 mm; forewing length 11.0 mm, hindwing length 9.0 mm.

Head generally yellowish brown. Compound eyes blackish brown. Labrum with a pair of brown large spots. Antennae brown; scape thick, length-width ratio approximately 2:1.

Prothorax yellowish brown with some spots; pronotum pale brown. Legs yellow with long setae, tibia with many brown spots. Forewing falcate on apex, slightly smoky yellow. Longitudinal veins yellowish brown, interrupted by many brownish spots; crossveins brown. Hindwing slightly paler than forewing, veins yellowish brown.

Abdomen brown. Male genitalia. Tergum 9 + ectoprocts posteriorly truncate. Complex of fused gonocoxites, gonapophyses and gonostyli 10 (= paramere-mediuncus complex) with large spiral part composed of nearly 15 loops, anteriorly reaching to segment 7, posteriorly ending to segment 9. Gonocoxites 11 (= gonarcus) narrow at middle.

Distribution. China (Fujian). Remarks. The primary types of this species cannot currently be found. No specimens of this species were available for our study. The above description was made according to the original description and illustration in Yang & Liu (1999).