Holzezus Krivokhatsky, 1992

Zheng, Yuchen, Liu, Zijun, Zhang, Dong & Liu, Xingyue, 2024, Taxonomic notes on two antlion genera Holzezus Krivokhatsky, 1992 and Subgulina Krivokhatsky, 1996 (Neuroptera: Myrmeleontidae: Myrmecaelurini) from China, Zootaxa 5403 (2), pp. 256-268 : 258

Holzezus Krivokhatsky, 1992 DZdzḇx

Holzezus Krivokhatsky, 1992: 407 . Type species: Holzezus compactus Krivokhatsky, 1992 , by original designation.

Diagnosis. Adult: Body pale yellow to yellowish brown, with many dark brown markings. Vertex obviously raised and rounded, covered with some short pale setae. Ocular rim setae present, pale and needle-like. Pronotum laterally with pale hairy setae. Mesoscutellum naked, without setae. Tibial spurs short, spinelike, shorter than tarsomere 1; tarsomere 5 nearly as long as entire length of tarsomeres 2–4. Forewing RP origin distad MP and CuA fork; five to seven presectoral crossveins present. Hindwing shorter than forewing; four to five presectoral crossveins present; pilula axillaris absent. Abdomen shorter than hindwing length; male terga 6–7 each with a pair of hairy pencil-like structures ( Fig. 3C ); female sternum 7 with a pair of digital projections (weakly developed in H. pamiricus ) ( Fig. 3I ). Male gonocoxites 9 small, shaped as a pair of thick hook-like structure; gonocoxites 11 arched in ventral view, broad in lateral view; ectoproct without posteroventral lobe. Female gonocoxites 8 slender digitiform, only one paired; gonocoxites 9 protruded with a few strong curved long digging setae.

Distribution. China, Iran, Mongolia, Tajikistan, Turkmenistan, Uzbekistan.

Remarks. This genus is similar to Iranoleon by having similar male genitalia (Hölzel 1968; 1972). However, the ocular rim setae of Holzezus are present, while they are absent in Iranoleon ; the wings of Holzezus are narrower than Iranoleon ; and the female digging setae of Holzezus are longer and curved. Besides, some species of Iranoleon has three pairs of hairy pencil-like structures (terga 5–7), e.g., I. arabicus Hölzel, 1982 , which can also be distinguished from Holzezus .

Figures

FIGURE 3. Holzezus compactus Krivokhatsky, 1992. A. Part of habitus, male; B. head, frontal view; C. distal abdomen, male, with hairy pencil-like structures on terga 6–7; D. head and thorax, dorsal view, one of the marking types, male; E. head and thorax, dorsal view, one of the marking types, female; male terminalia: F. lateral view; G. ventral view; female terminalia: H. lateral view; I. ventral view; male genitalia: J. ventral view; K. anteroventral view; L. caudal view; M. lateral view; N. dorsal view.