Holzezus compactus 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 : 259-263

Holzezus compactus Krivokhatsky, 1992 AEDZdzḇ

( Figs 2A ; 3 )

Holzezus compactus Krivokhatsky, 1992: 407 (type locality: Turkmenistan: Lebap, Repetek; holotype in ZISP). Krivokhatsky et al., 1996: 149 ( Holzezus ). Stange, 2004: 260 ( Holzezus ). Mirmoayedi et al., 2015: 10 ( Holzezus ).

Diagnosis. Adult: Body yellowish brown with dark brown markings ( Fig. 2A ). Vertex anteriorly with a pair of transversal dark brown bands and posteriorly with a pair of dark brown spots; a pair of dark brown spots present between scapes ( Fig. 3D–E ). Pronotum medially with a longitudinal dark brown stripe and laterally with a pair of oblique dark brown stripes, these stripes indistinct or discontinuous in some individuals; lateral margin with a pair of indistinct gray spots. Mesoscutellum with five dark brown dots and posterolaterally with a pair of subtriangular dark brown spots ( Fig. 3D–E ). Forewing rhegma and marking on cubital area indistinct ( Fig. 2A ). Male gonocoxites 9 small, shaped as a pair of thick hook-like structure ( Fig. 3J–N ). Female gonocoxites 9 with five to seven strong curved long digging setae ( Fig. 3H–I ).

Re-description of adult. Size. Head width: 2.04–2.66 mm; forewing length: 16.74–24.40 mm; hindwing length: 14.12–21.31 mm.

Head. Vertex obviously raised and rounded, covered with some short pale setae, anteriorly with a pair of transversal dark brown bands and posteriorly with a pair of dark brown spots. Scape and pedicel generally yellowish brown; flagellum yellowish brown, each of flagellomere basally with a dark brown circular marking. A pair of dark brown spots present between scapes. Ocular rim setae present, pale and needle-like. Frons pale yellowish brown ( Fig. 3B ). Gena wide. Clypeus pale yellowish brown with a pair of indistinct arched grey markings, covered with a few short dark brown setae. Labrum pale yellowish brown. Maxillary palpus generally pale yellowish brown, terminal segment brown. Labial palpus generally pale yellowish brown, terminal segment fusiform with a dark brown spot. Mandibles pale yellowish brown with distal half dark reddish brown ( Fig. 3B ).

Thorax. Yellowish brown with dark brown markings. Pronotum nearly as long as wide, with many short pale setae, lateral margin with some hairy long pale setae; medially with a longitudinal dark brown stripe and laterally with a pair of oblique dark brown stripes, these stripes indistinct or discontinuous in some individuals; lateral margin with a pair of indistinct gray spots. Intersegmental membrane between pronotum and mesonotum with a pair of dark brown spots. Mesoprescutum anteriorly with an inversed triangular dark brown marking, posteriorly with a triangular dark brown marking, laterally with a pair of dark brown spots; mesonotum medially with an inversed subtriangular dark brown marking, laterally with a pair of inversed “V” shape dark brown markings; mesoscutellum with five dark brown dots and posterolaterally with a pair of subtriangular dark brown spots. Metanotum with three dark brown spots and lateral margin with a pair of oblique “V” shape dark brown marking; metascutellum anteriorly with a pair of dark brown dots, medially with a dark brown spot, and posteriorly with a pair of dark brown spots. Meso- and metapleurae generally yellowish brown with some dark brown markings ( Fig. 3D–E ).

Legs. Yellowish brown, with many pale setae and a few dark brown setae. All femurs dorsally dark brown; tibial spurs spinelike, shorter than tarsomere 1; tarsomere 5 nearly as long as entire length of tarsomeres 2–4; tarsi yellowish brown each tarsomeres dark brown distally; pretarsal claws slightly curved, basally not protruded. Foreleg: Coxa pale yellowish brown, with a dark brown spot, covered with dense hairy pale setae; femur nearly as long as tibia; tibia medially with an indistinct dark brown spot. Midleg: Coxa pale yellowish brown, covered with a few short pale setae, other characters similar to foreleg. Hind leg: Coxa pale yellowish brown, covered with a few short pale setae; femur 3/4 as long as tibia; tibia distally dark brown ( Fig. 3A ).

Wings. Narrow, mostly hyaline; posterior margin relatively straight; dark brown alternating with pale on longitudinal veins; pterostigma medially brown and laterally pale. Forewing MP sometimes suffused with an indistinct brown spot or a short transversal stripe; rhegma and markings on cubital area indistinct; RP origin distad MP and CuA fork; five to seven presectoral crossveins present; RP with six to seven branches; anterior Banksian line sometimes indistinct, posterior Banksian line distinct. Hindwing shorter than forewing; rhegma indistinct; four to five presectoral crossveins present; pilula axillaris absent ( Figs 2A ; 3A ).

Abdomen. Yellowish brown with dark brown markings; shorter than hindwing. Terga 2–7 each medially with a longitudinal dark brown stripe, laterally with a pair of indistinct dark brown markings. Sterna 2–7 each with a pair of indistinct dark brown markings. Male terga 6–7 each with a pair of hairy pencil-like structures ( Fig. 3C ). Female sternum 7 with a pair of digital projections. Male terminalia and genitalia. Tergum 9 rounded. Sternum 9 short, subrectangular in ventral view. Gonocoxites 9 small, shaped as a pair of thick hook-like structure ( Fig. 3F–G ). Gonocoxites 11 arched in ventral view, broad in lateral view; gonapophyses 11 long fusiform ( Fig. 3J–N ). Ectoproct nearly trapezoidal in lateral view, with many long setae ( Fig. 3F–G ). Female terminalia. Pregenital plate weakly developed. Gonocoxites 8 slender, digitiform, one paired. Gonocoxites 9 protruded with five to seven curved long digging setae. Ectoproct slightly protruded posteroventrally, without thick setae ( Fig. 3H–I ).

Material examined. 2♂ 7♀, CHINA: Hami, Yiwu County [伊吾县], Naomaohu Town [DZƚDzä], Yiwu National Desert Poplar Desert Park [伊吾DZêū国ẍüāȓ园], 448 m, 27.VII.2023, Zhichao Zhou, Zijun Liu & Huaiyu Liu ( CAU) ; 2♂ 7♀, same information as above ( BFUC) ; 1♂, CHINA: Xinjiang, Turpan, Toksun County [Ĕ 克ñ县], Kumux Town [NJ*什ä], Yengi Bostan Village [Ȓ博ª坦"], 872 m, 17.VII.2023, Zhichao Zhou, Zijun Liu & Huaiyu Liu ( CAU) ; 6♀, same information as above ( BFUC) ; 1♀, TAJIKISTAN: Down strem of Pianj River , “Tigrovaya Balka” reserve, 1–5.VIII.2006, Gurko V. ( EMKH) .

Distribution. China (Xinjiang); Iran (Khorasan); Mongolia (Bayankhongor); Tajikistan (Khatlon); Turkmenistan (Lebap); Uzbekistan (Kegeyli).

Figures

FIGURE 2. Habitus. A. Holzezus compactus Krivokhatsky, 1992, male; B. Subgulina kerzhneri Krivokhatsky, 1996, female.

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.