Habralictus crassiceps ( Moure, 1941 )

Liz, Júlia Alberti de & Gonçalves, Rodrigo Barbosa, 2025, A taxonomic revision of Habralictus Moure, 1941 from Brazil, with description of four new species (Hymenoptera: Apidae), European Journal of Taxonomy 991 (1), pp. 1-53 : 28-32

publication ID	https://doi.org/10.5852/ejt.2025.991.2907
publication LSID	lsid:zoobank.org:pub:26DBEF30-95F2-4DAD-89FE-048FF02D67F9
DOI	https://doi.org/10.5281/zenodo.15497971
persistent identifier	https://treatment.plazi.org/id/03D987C1-E167-FF8E-FD98-16C3BDE0873C
treatment provided by	Plazi
scientific name	Habralictus crassiceps ( Moure, 1941 )
status

Treatment

6. Habralictus crassiceps ( Moure, 1941)

Figs 1C View Fig , 2D View Fig , 11–12 View Fig View Fig , 20G View Fig , 21C View Fig

Zikaniella crassiceps Moure, 1941: 57 View in CoL .

Habralictus orites Moure, 1941: 68 View in CoL , syn. nov.

Diagnosis

Females with bright green areolate mesoscutum, with small basolateral pairs of yellow maculations on the terga. It can be distinguished from those of H. callichroma by the large terga maculations on the latter and by the slightly depressed clypeus in the former. The pronotal dorsolateral angle is acute, different from those of H. chlorobaptus and H. nitidus sp. nov., which are obtuse.

Males are very easily distinguished from the those of other species by the oval-shaped metasoma (with T3 and T4 almost twice as wide as T1 and T2). Other characteristics are S5 with an apical elevation; frons, mesoscutum and metapostnotum polished; presence of paraocular fovea; hind tibia inner spur pectinate.

Type material

Holotype of Zikaniella crassiceps

BRAZIL – Rio de Janeiro • ♂; “DZUP/521319// Itatiaya -/ 2.V.1929 // HOLOTYPUS // ♂ // Zikaniella / crassiceps /m./ P. Moure 1941 ”; DZUP 521319 View Materials .

Holotype of Habralictus orites

BRAZIL – Rio de Janeiro • ♀; “ Itatiaya- 700/ E.Rio-Brazil/ 12.V.1932 // DZUP/521316 View Materials // HOLOTYPUS // orites// Habralictus / orites /m./ P. Moure 1941 ”; DZUP 521316 View Materials .

Paratypes

BRAZIL – Rio de Janeiro • 1 ♂; “ DZUP/521323 View Materials // Itatiaya / 2.VI.1929 // PARATYPUS / Zikaniella / crassiceps / ♂ / Pe. J.S. Moure, 1941 ”; DZUP 521323 View Materials • 1 ♀; “DZUP/521317// Itatiaya, 700/ 21.Vi.1941 / E.Rio-Brasil // PARATIPO // Paratypus / orites m./ Det. J.S. Moure 19”; DZUP 521317 View Materials • 1 ♂; “DZUP/521315// Itatiaya, 816m / 20-VI-1941 / E.Rio-Brasil // ALOTIPO// orites // PARATYPUS / Habralictus / orites ♂ / Pe. J.S Moure 1941 ”; DZUP/521315 View Materials • 2 ♂♂; “ DZUP/521318 View Materials // Itatiaya- 700/ 12.V.1932 // PARATIPO// Paratype / orites m./ Det. J.S.Moure 19”; DZUP 521315 View Materials , 521318 View Materials .

Other material examined

BRAZIL – Paraná • 1 ♀; Estrada dos Castelhanos ; 25°49′ S, 48°53′ W; 260 m a.s.l.; 7 Feb. 2004; Aguiar, Gonçalves and Melo leg.; DZUP 522540 View Materials GoogleMaps • 1 ♀; Antonina, Reserva Cachoeira, SPVS ; 25°24′ S, 48°64′ W; 25 Feb. 2007; C. Maia leg.; DZUP 161156 View Materials • 1 ♂; same data as for preceding; 23 Jun. 2007; DZUP 161556 View Materials , – Rio de Janeiro • 1 ♂; “DZUP/521322// Itatiaya- / 22.Vi-1932 // crassiceps /m/Det. J.S. Moure 19”; DZUP 521322 View Materials • 1 ♀; “ DZUP/521321 View Materials // Itatiaya, 700/ I-VI-1940/ E. Rio-Brasil ”; DZUP 521321 View Materials • 1 ♀; “ DZUP/521320 View Materials // Itatiaya, 700/ 8-VI-1941 / E. Rio–Brasil // crassiceps /m./Det. J.S.Moure, 19”; DZUP 521320 View Materials • 1 ♀; “DZUP/522352// Itatiaya, 700/ II-VI-1941 / E. Rio-Brasil ”; DZUP 522352 View Materials .

Redescription

Female

HEAD. Head bright green with some bluish reflections; covered with dense short white plumose setae, intermixed with black erect setae. Labrum dark brown. Mandible usually brown. Clypeus slightly depressed in the middle; green, with an apical band brown; covered with sparse short white decumbent setae and with a band of long apical setae; sparsely punctate intertwined with very fine punctures; polished between the punctures. Supraclypeal area densely punctulate; polished between the punctures. Paraocular fovea extends from the base of the eye to the antennal socket; always contiguous to the eye margin. Paraocular area sculpturing similar to that of the supraclypeal area. Frons puncticulate; areolate between the punctures. Gena covered with decumbent white setae. Scape dark brown. Flagellum dark brown.

MESOSOMA. Pronotal dorsolateral angle acute, sometimes with a projected tip. Pronotal lobe brown. Tegula brown. Wing membrane hyaline. Mesoscutum anterior margin rounded, not acuminate-shaped; surface bright green; covered with sparse decumbent setae; densely punctulate; areolate between the punctures. Mesepisternum bright green. Pre-episternum crowded areolate. Hypoepimeral area lineolate. Mesepisternum areolate. Metapostnotum not depressed in the median posterior surface; bright green; lineolate anteriorly, becoming weakly coriaceous posteriorly.

LEGS. Fore coxa brown, trochanter amber, femur brown with a yellow tip or ventrally, tibia and basitarsus yellow. Mid leg brown. Hind leg brown. Hind femur with dense long plumose setae.

METASOMA. Terga dark brown with yellow maculations, as follows: T2–T4 with pairs of very small yellow lateral maculations; covered with short decumbent setae very sparsely distributed in T1, which progressively become denser towards T5; lineolate. Sterna covered with long plumose setae, denser and longer in S3> S2 = S4> S5>S1.

MEASUREMENTS. Approximate body length 6.4 mm. Head mean width 1.69 mm; mean length 1.42 mm. Clypeoantennal mean distance 0.32 mm. Mean distance between subantennal sutures 0.42 mm. Lower interocular mean distance 0.93 mm. Upper interocular mean distance 0.96 mm. Scape mean length 0.81 mm. Intertegular mean distance 1.16 mm. T1 mean width 1.28 mm. T2 mean width 1.76 mm. T3 mean width 1.94 mm.

Male

HEAD. Head bright green; covered with sparse decumbent setae below the antennal socket and with dense short white decumbent setae above. Labrum yellow. Mandible usually yellow with darkened apex. Stipe brown. Clypeus slightly flattened in the middle; green, with an apical band yellow, which is projected upwards in the center; covered with sparse long white decumbent setae and with a band of long apical setae; puncticulate; polished between the punctures. Supraclypeal area puncticulate, more densely punctate towards upper portion; polished between the punctures, but areolate closer to the antenna. Paraocular area fovea present. Paraocular area sculpturing similar to that of the supraclypeal area. Frons densely punctulate; puncticulate and polished between the punctures, becoming more crowded toward the median line. Gena covered with decumbent white setae and post-gena with longer plumose setae; polished. Scape dark brown; covered with sparse long erect setae (0.1 mm). F1 about the same size as the pedicel (0.1 mm). F2–F11 becoming shorter and more robust to the apex. Flagellum dark brown.

MESOSOMA. Pronotal dorsolateral angle acute. Pronotal lobe brown. Tegula amber. Wing membrane hyaline. Mesoscutum with the anterior margin acuminate-shaped; surface bright green; covered with very sparse and short tomentum and few sparse darker erect setae, more visible from an oblique view; puncticulate; polished between the punctures. Scutellum puncticulate and polished between the punctures. Mesepisternum bright green; puncticulate and polished between the punctures. Metapostnotum surface flat/at the same level as the propodeum; bright green; polished, sometimes with some lineolation close to the anterior margin.

LEGS. Fore coxa brown, trochanter and femur amber, tibia and basitarsus yellow. Mid coxa brown, remaining segments amber. Hind leg light brown.

METASOMA. Metasoma oval-shaped, T3 and T4, mainly, almost twice the width of T1 and T2; dark brown with yellow maculations, as follows: T3–T4 with two small yellow lateral maculations covered with short decumbent setae very sparsely distributed in T1, which progressively become denser towards T6; lineolate. S6 with an apical projection/elevation.

GENITALIA. Gonobase about one third of the gonocoxite, without basal projection, without ventral bridge. Gonocoxite dorsal inner margin forming a flange triangular-shaped, apical portion weakly developed. Gonapophysis apex enlarged and bearing several long setae subapically, with short median projections. Gonostylus basal lobe inconspicuous, with short setae; ventral process slender, with setae elsewhere and long setae apically, dorsal process short, larger apically. Volsella short and rounded.

MEASUREMENTS. Approximate body length 5.6 mm. Head mean width 1.66 mm. Head mean length 1.43 mm. Clypeoantennal mean distance 0.26 mm. Mean distance between subantennal sutures 0.44 mm. Lower interocular mean distance 0.94 mm. Upper interocular mean distance 1.04 mm. Scape mean length 0.56 mm. Intertegular mean distance 0.98 mm. T1 mean width 0.78 mm. T2 mean width 0.85 mm. T3 mean width 1.44 mm.

Distribution

Brazil: Paraná, Rio de Janeiro.

Taxonomic remarks

Moure (1941) originally described Z. crassiceps for a male, and H. orites for a female. The male is remarkable for its enlarged head and oval metasoma, features without a counterpart in the female. The type specimens of these two taxa have the same type locality, Itatiaia, in Rio de Janeiro, and were collected before 1941. Moure further examined additional material from Itatiaia, collected after 1941, associating as females of Z. crassiceps specimens that are clearly conspecific with the holotype of H. orites . Also, males of H. macrospilophorus were found associated with H. orites in his collection. This indicates to us that Moure’s concepts of Z. crassipes and H. orites was not settled. Additional recent material for H. crassiceps is known for Antonina, Paraná. We consider both names as synonyms based on their distribution and some morphological indications. The shape of the subantennal sutures of the female of H. crassipes is mostly parallel and joins the antennal socket in their middle, while in most females of Habralictus the sutures are convergent and join the antennal socket closer to their inner margin. The males of H. crassiceps have the sutures mostly divergent, different from those of remaining Habralictus . The female also has a wider head compared to those of the remaining species, except for H. chlorobaptus . This latter species is only known for the female, but the distribution, polished integument and metallic terga discard the association with the male of Z. crassipes . The distinctiveness of the males of H. crassiceps is considered an extreme sexual dimorphism and the female could be considered a typical Habralictus . The phylogenetic hypothesis for the paraphyly of Habralictus s. str. ( Gonçalves & Melo 2010) reinforces this view. As Zikaniella crassiceps and Habralictus orites were described together by Moure (1941) and are considered subjective synonyms, as first revisers, we also determine the precedence to the name Zikaniella crassipes , this name was described first in the same paper, and is the type species of Zikaniella , an available genus name.