Anomaloplectron lineatipenne Esben-Petersen, 1918

Machado, Renato Jose Pires & Oswald, John David, 2020, Morphological phylogeny and taxonomic revision of the former antlion subtribe Periclystina (Neuroptera: Myrmeleontidae: Dendroleontinae), Zootaxa 4796 (1), pp. 1-322 : 34-37

Anomaloplectron lineatipenne Esben-Petersen, 1918

( Figs. 5–7 )

Anomaloplectron lineatipenne Esben-Petersen 1918:9 (OD); Esben-Petersen 1923:587 (cit); Stange 1976:309 (cat); New 1985b:30 (key, rd, ill); New 1996:66 (cat); Stange 2004:98 (cat); Oswald 2018 (cat); Machado et al. 2019 (tree).

Diagnosis. Forewing with most of the subcostal and mediocubital areas brown; female posterior gonapophyses digitiform.

Description. Lengths: forewing: 15–18 mm; hind wing: 13–16 mm.

Head ( Figs. 6 a–b): Labrum pale, with a line of elongate setae. Clypeus pale, with two small rounded dark brown spots, with few short black setae. Frons mostly pale, with four small dark brown marks as follows: a medial mark at the ventral area, a mark beneath each antenna, a mark between the antennae; dorsal margin dark brown; mostly glabrous, with few short pale setae. Gena pale. Vertex raised; mostly pale except for the dome dark brown, a rounded medial brown mark at posterior margin in male specimens; set with few black setae. Ocular setae absent. Antennae clubbed; elongate,> 2x pronotum length; distance between antennae wider than scape width; apex dark brown but remaining parts with anterior surface pale and posterior surface dark brown; all segments set with few pale setae. Mandible pale with tip dark. Palpi, maxillary and labial pale; apical labial palpomere fusiform, palpimacula opening oval-shaped, located medially.

Thorax ( Fig. 6b ): Pronotum slightly wider than long; posterior margin as wide as anterior; subapical furrow present; mostly pale with dark brown areas; a broad longitudinal medial line; two sinuous longitudinal lines around midline, sometimes connected with the medial line at the posterior half; two lateral lines that end at furrow; set with short black setae. Mesonotum mostly dark brown, except some irregular pale marks around midline; set with short black setae. Metanotum dark brown; set with few short black setae. Pterothoracic pleura dark brown; set with few short black setae; Miller’s organ absent.

Wings ( Fig. 6c ): Narrow with tip acute. Banksian lines absent in both wings. Veins mostly dark brown, but some intercalated with white spots; beset with short black setae. Male pilula axillaris present. Forewing membrane mostly hyaline; dark brown marks as follows: most of subcostal area (mainly in basal half); most of mediocubital area, near gradate veins, a line starting at RP origin and ending at posterior area apex; posterior margin with some brown infuscations; CuA fork located near origin of first RP fork; two presectoral crossveins; subcostal veinlets simple; posterior area wider than prefork area. Hind wing membrane hyaline with a small brown rhegmal mark; MP fork located between RP origin and first fork; subcostal veinlets simple; one presectoral crossvein.

Legs ( Figs. 6 a–b): All pairs of legs with tibial spurs of different lengths. Proleg sense hair elongate, more than half femur length; coxa elongate, slightly shorter than femur, pale with external surface mostly dark brown, covered with short white setae and few short black setae; trochanter pale basally but dark brown apically, covered with short black setae; femur swollen and short, with dorsal surface pale but ventral surface dark brown, dorsally covered by short white setae, laterally with few short black setae and ventrally glabrous, except base with few short black setae; tibia shorter than femur, mostly pale but apex and a medial ring dark brown, dorsal surface covered with black setae, lateral areas with few short white setae, and ventral surface with antennal cleaning setae on apical half and numerous short black setae on basal half; tibial spurs strongly curved and extending beyond T4 apex; tarsi slightly shorter than tibia, T2, T3 and T4 about the same size, T1 slightly longer than T2, T5 about as long as T1–T4 combined; all tarsomeres pale, covered with black setae; T5 ventrally with two rows of thick, long black setae; pretarsal claws short, about ¼ length of T5. Mesoleg similar to proleg, but coxa shorter, dark brown, and covered with short black setae; femur not swollen, entirely dark brown, covered by short black setae and few elongate setae at base; tibia slightly shorter than femur, base dark brown, medially pale, apex brown, covered with short black setae and few white setae on internal margin; tibial spurs extending to T2 apex. Metaleg similar to mesoleg except with femur, tibia and tarsi slightly longer; tibia entirely pale, white setae absent, tibial spurs extending to midlength of T1.

Abdomen: Tergites with distal halves dark brown, basal halves pale with irregular dark marks. Sternites mostly pale with lateral margins dark brown. Covered with short black setae.

Male Terminalia ( Figs. 7 a–c): Ectoproct posterior margin rounded in lateral view; set with elongate black setae, mainly in ventral area. 9 th sternite broad, with posterior margin rounded, in ventral view; covered with long black setae. Gonarcus thin, an arched transverse bar in posterior view. Mediuncus membranous. Paramere broad and elongate in lateral view, apex more sclerotized, base rounded.

Female Terminalia ( Figs. 7 d–f): Ectoproct posterior margin rounded in lateral view, set with thin elongate setae dorsally and few cavisetae on ventral area. Lateral gonapophyses smaller than ectoproct, beset with long cavisetae on apex, with numerous pale setae on ventral margin. 9 th tergite rounded on ventral margin, with numerous pale elongate setae. 8 th tergite with ventral margin acute in lateral view. 7 th sternite long with distal border straight in ventral view; covered with short setae. Pregenital plate weakly sclerotized, small, and triangular in ventral view. Posterior gonapophyses elongate, digitiform, beset with long black setae, and with numerous long pale setae on dorsal surface. 9 th tergite without the membranous digitiform process. Anterior gonapophyses absent. Ventral membrane covered with many pale setae, gonapophyseal plates present.

Distribution ( Fig. 5 ). Australia: QLD, SA, WA. Known from sparse records across mainland Australia.

Adult activity period. Records for November, December, February, and April.

Biology. Unknown, larva unknown.

Name-bearing type. Anomaloplectron lineatipenne : Holotype (by explicit monotypy), male, NHRS, highresolution images examined. Type locality: Australia, Western Australia, Kimberley District (region). From original description, Esben-Petersen (1918): “One specimen from Kimberley district, N. W. Australia, May”. From New (1985b): “ Holotype, ♂, Western Australia, Kimberley District, May, Mjoberg (labeled Anomaloplectron lineatipenne ) (Stockholm) (seen)”. Condition: good, left antenna and right antenna tip missing; terminalia dissected.

Additional material examined (3♂, 2♀). AUSTRALIA: South Australia: Musgrave Range : 25 mi Bore, 9.ii.1966, at lights, P. Aitken & N.B. Tindale (1♂, SAMA) ; Queensland: 17 km E of Miles , 11.xii.1990, T.A. Lambkin (1♂, QMBA) ; Western Australia: Carnarvon: Manberry Station , 22.iv.1955 (1♀, MVM) ; 70 air km WWNW of Gascoyne Junction , 24.87559 oS– 114.55150 oE, 21.xii.2012, M.V., Oswald, Diehl & Machado, Oswald #613 (1♀, TAMU) ; Millstream : 3.xi.1970, M.S. Upton (1♂, ANIC) .

Comments. See Comments for Anomaloplectron .

Figures

FIGURE 5. Distribution of Anomaloplectron and Csiroleon species.

FIGURE 6. Anomaloplectron lineatipenne: a) head, anterior; b) head and thorax, dorsal; c) wings, dorsal.

FIGURE 7. Anomaloplectron lineatipenne: male: a) terminalia, lateral; b) genitalia, lateral; c) genitalia, posterior; female: d) terminalia, lateral; e) terminalia, ventral; f) 7th sternite and pregenital plate, ventral. Scale bars = 0.5 mm.