Glenoleon radialis Banks, 1913:224
Morphological phylogeny and taxonomic revision of the former antlion subtribe Periclystina (Neuroptera: Myrmeleontidae: Dendroleontinae)
Machado, Renato Jose Pires
Oswald, John David
Zootaxa
2020
2020-06-16
4796
1
1
322
(Banks, 1913)
Machado & Oswald
2020
Banks
1913
[151,610,1773,1800]
Insecta
Myrmeleontidae
Megagonoleon
Animalia
Neuroptera
239
240
Arthropoda
species
radialis
comb. nov.
( Figs. 119, 124–125) http://zoobank.org/NomenclaturalActs/ 94ECC4EC-4A32-4A54-B4C1-A03A18C9B0A4
Glenoleon radialis Banks, 1913:224(OD); Stange 1976:306(cat); New 1985b:33(key, rd, ill); New 1996:84(cat); Stange 2004:106(cat); Oswald 2018(cat).
Diagnosis.Body mostly black; clypeus mostly dark; hind wing with some radial crossveins brown margined; tibial spurs present; hind wing rhegmal and stigmal marks about same size; posterior gonapophysis elongate and narrow.
Description.Lengths: forewing: 33–36 mm; hind wing: 30–33 mm. Head ( Figs. 124a–b): Labrumblack centrally and pale marginally, set with a line of elongate setae. Clypeuspale with central brown marks; set with few elongate black setae. Fronspredominantly black, except for ventrolateral margin pale; some specimens with area between antennae pale; beset with short white setae. Genapale. Vertexraised; in anterior view pale, with a median black line interrupted centrally; in dorsal view mostly black except by some pale areas around central region posteriorly; set with short black or white setae. Ocularsetae very short, black or white. Antennaeclubbed; elongate,> 2x length of pronotum; distance between width; entirely dark-brown to black; torular membrane yellow; flagellomeres almost as long as wide at base, apical ones much wider than long; all segments set with short black setae. Mandiblesdark brown, with some pale areas externally. Palpi, maxillary and labial dark brown with distal margin of segments generally pale, apical labial palpomere fusiform, palpimacula opening oval-shaped, located medially. FIGURE 124. Megagonoleon radialis: a) head, anterior; b) head and thorax, dorsal; c) wings, dorsal. Thorax ( Fig. 124b): Pronotumabout as long as wide; posterior margin as wide as anterior; subapical furrow present in some specimens; generally pale with a broad black longitudinal band on midline (flanked on each side by a thinner pale longitudinal band), margins generally black; set with many short or long black setae, and some long white setae mostly located at margins. Mesonotumgenerally black, with some small longitudinal yellow bands on each side, scutellum mostly pale with black dorsal marks, but entirely black in some specimens; covered with short black or white setae. Metanotumusually black with some pale areas, mostly at sclerites margins; covered with short white setae. Pterothoracic pleurablack with some pale areas generally between sclerites; set with white setae; Miller’s organ present. FIGURE 125. Megagonoleon radialis: male: a) terminalia, lateral; b) genitalia, lateral; c) genitalia, posterior; female: d) terminalia, lateral; e) pregenital plate, posterior. Scale bars = 0.5 mm. Wings ( Fig. 124c): Fairly broad; anterior and posterior Banksian lines present in both wings; veins mostly brown but intercalated with white spots, set with short black setae. Male pilula axillarispresent. Forewingmembrane mostly hyaline with brown marks generally concentrated at tip, pterostigma, and around crossveins (mainly radial crossveins); CuA fork located near origin of RP; three presectoral crossveins; subcostal veinlets simple; prefork area slightly wider than posterior area. Hind wingmembrane mostly hyaline except by brown marks around crossveins, tip and rhegmal and stigmal areas; MP fork located between RP origin and first fork; subcostal veinlets simple; one presectoral crossvein. Legs ( Figs. 124a–b): All pairs of legs, femur elongate (near three times longer than coxa); tibia and femur about same size but longer than tarsi; tibial spurs reaching apex of T1; T2, T3 and T4 about same size, T1 about twice longer T2, T5 about twice longer T1; claws about half of T5 length; coxa, trochanter, and femur set with short white setae; femur, tibia and tarsi set with short black setae, and scattered long black setae; T5 ventrally with two rows of thick, long, black setae. Prolegsense hair as long as femur width; tibia with antennal cleaning setae ventroapically; coxa, trochanter, and femur dark brown, some specimens with a pale area on femur anterior surface; tibia dark brown with three pale rings; tarsi dark brown, except for base of T1, pale. Mesolegwith same colour pattern of proleg. Metalegwith femur, tibia and T1 slightly longer than in other legs; colour pattern similar to anterior legs, except for tibia pale but tip and ventral surface, dark brown. Abdomen: Usually entirely black or dark brown, but occasionally with irregular pale spots on sclerites posterior margins. Beset with short white setae. Male Terminalia ( Figs. 125a–c): Ectoproctposterior margin rounded in lateral view, set with elongate black setae. 9 thsterniteposterior margin with medial region acute in ventral view; set with elongate black setae. Genitaliasemi triangular in dorsal view. Gonarcusbroad and connected to Mediuncus, which is acute apically in lateral view. Paramereweakly sclerotized, thin, and elongate in lateral view. Female Terminalia ( Figs. 125d–e): Ectoproctposterior margin rounded, set with thin elongate setae and some long cavisetae ventrally. Lateral gonapophysesrounded, about same size as ectoproct, beset with elongate cavisetae. 8 thand 9 thtergitewith few thickened setae on ventral area in lateral view. 7 thsternitedistal margin with a small invagination in ventral view; covered with short black setae. Pregenital platelarge, with ventral margin curved in lateral view; curved and concave in posterior view. Posterior gonapophysesthin, elongate, covered with short black setae. 9 thtergitewith a short membranous digitiform process. Anterior gonapophysesabsent. Ventral membranegonapophyseal plates absent.
Distribution( Fig. 119). Australia: NT, QLD, WA. Widespread across northern Australia. Adult activity period.Records for March to June; apparently a northern fall emerging species.
Biology.Unknown, larva unknown. Name-bearing type. Megagonoleon radialis: Holotype(by original designation), female, ANIC, examined. Type locality: Australia, Northern Territory, Darwin(city). Fromoriginal description: “ Type— ♀. From Port Dar- win, Australia, 12th May (Dodd)”. From New (1985b; 1986): “ Holotype, ♀, Northern Territory, Darwin, 12 May (Dodd) (formerly MCZ, now ANIC) (seen)”. Condition: good; terminalia dissected. Additional material examined( 17♂, 37♀). AUSTRALIA: Northern Territory: ½ mi SE of Batchelor, Camp 9, 12.iv.1966, U.V. light, N. McFarland( 5♀, 8♂, SAMA); Creswell Downs: 9.iv.1986, J. Howard( 3♀, QMBA); Daly Watters: iv.1966( 1♀, SAMA); Highway Inn: 3.iv.2008, ex woodland, at light, G. Williamsand W. Pulawski( 1♂, 4♀, AMSA); 98 kmSW of Katherine, 15.07S– 131.42E, 1.iv.1995, E.D. Edwards& M. Mat- thews ( 1♀, ANIC); Nabarlek Dam: 14 kmSSW of Nimbuwah Rock, 12.19S– 133.19E, 2.vi.1973, M.S. Upton( 2♀, ANIC); Queensland: Georgetown: Newcastle Range, 18.18S- 143.44E, 21.iii.1995, E.D. Edwards& M. Matthews( 2♂, ANIC); Mica Creek: 16.iii.2001( 1♂, 6♀, QMBA); Mornington IslandMission: 11–12.v.1963, at light, P. Aitken& N.B. Tindale( 1♂, 6♀, SAMA); Normanton: 14.iv.1961, at light, E.N. Marks( 1♂, 1♀, ANIC, QMBA); Riversleigh Homestead: iv.1986( 1♀, SAMA); Western Australia: 70 miESE of Kununurra(NT): 17.iv.1966, U.V. light, N. McFarland( 2♀, 1♂, SAMA); Fitzroy Crossing area: 24.iii.1984, at light, K. & E. Carnaby( 2♀, AMSA); 24 kmNNW of Lissadell, 16.33S– 128.12E, 7.iv.1995, E.D. Edwards& M. Matthews( 1♀, 2♂, ANIC).
Comments. Megagonoleon radialisis closely related to M. stigmatus, with which it forms a species-pair clade within the larger stigmatusspecies group ( Fig. 4). Both species appear to be restricted to the northern parts of Australia. They have dark bodies and many similarities in both the female and male terminalia, but can be easily separated based on wing and clypeal markings.
ANIC
Australia
Darwin
From
From
242
243
2
2
Northern Territory
holotype
1966-04-12
SAMA
N. McFarland
Australia
Northern Territory
242
243
13
5
8
Northern Territory
1986-04-09
QMBA
J. Howard
Australia
Creswell Downs
242
243
3
3
Northern Territory
[263,679,1521,1547]
1966-04
SAMA
Australia
Daly Watters
242
243
1
1
Northern Territory
2008-04-03
AMSA
G. Williams & W. Pulawski
Australia
Highway Inn
242
243
5
4
1
Northern Territory
1995-04-01
ANIC
E. D. Edwards
Australia
-15.07
Katherine
772
131.42
242
243
1
1
Northern Territory
1973-06-02
ANIC
M. S. Upton
Australia
-12.19
Nabarlek Dam
776
133.19
242
243
2
2
Northern Territory
1995-03-21
ANIC
E. D. Edwards & M. Matthews
Australia
-18.18
Newcastle Range
765
143.44
Georgetown
242
243
2
2
Queensland
[307,803,1665,1691]
2001-03-16
QMBA
Australia
Mica Creek
242
243
7
6
1
Queensland
1963-05-11
1963-05-12
1963-05-11
SAMA
P. Aitken & N. B. Tindale
Australia
Mornington Island
242
243
7
6
1
Queensland
[634,1432,1701,1727]
1961-04-14
ANIC, QMBA
E. N. Marks
Australia
Normanton
242
243
2
1
1
Queensland
[151,665,1737,1763]
1986-04
SAMA
Australia
Riversleigh Homestead
242
243
1
1
Queensland
1966-04-17
SAMA
N. McFarland
Australia
70 mi ESE of Kununurra
242
243
3
2
1
Western Australia
[596,1432,1773,1799]
1984-03-24
AMSA
K. & E. Carnaby
Australia
Fitzroy Crossing area
242
243
2
2
Western Australia
[151,1302,1808,1835]
1995-04-07
ANIC
E. D. Edwards & M. Matthews
Australia
-16.33
Lissadell
769
128.12
242
243
3
1
2
Western Australia