Habralictus cyaneus, Liz & Gonçalves, 2025

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 : 32-36

7. Habralictus cyaneus sp. nov.

urn:lsid:zoobank.org:act:1A765968-C889-47CE-BF9B-A675CDDE338B

Figs 2C , 13–14 , 21D

Diagnosis

Female without yellow maculations on the metasoma and with paraocular fovea not contiguous to the eye margin near emargination. Differs from that of similar species by the bluish bright green mesoscutum, purple in H. beatissimus , and the blue metallic reflections on the metasoma, absent in both H. beatissimus and H. canaliculatus .

Male without yellow maculations on the metasoma and with elongate flagellomeres. The anterior margin of the mesoscutum is rounded, not acuminate-shaped as in that of H. canaliculatus . The scutellum is polished between the punctures, whereas in H. beatissimus it is crowded lineolate.

Etymology

Latin borrowed from Ancient Greek ‘ kuáneos ’, ‘dark blue’, referring to the blue metallic reflections on the metasoma.

Type material

Holotype BRAZIL – Amapá • ♀; Macapá, APA da Fazendinha, Fragmento Florestal ; [0°2′59.440″ S, 51°7′28.119″ W]; 15 Nov. 2018; I. Souza and A. Jordão leg.; Visitante açaizeiro; DZUP 522383 .

Paratypes BRAZIL – Amapá • 1 ♂; same data as for holotype; DZUP 522514 . • 1 ♀, only mesosoma preserved; same data as for holotype; 29 Mar. 2019, 08:50am–10am; Visitante açaizeiro; DZUP 522384 .

Description

Female

HEAD. Head bluish green; covered with sparse short white plumose setae. Labrum dark brown. Mandible usually yellow with darkened apex. Clypeus not depressed in the middle; bluish green, with an apical band brown; covered with sparse short white decumbent setae; punctate intertwined with very smaller punctures; polished between the punctures. Supraclypeal area punctulate; polished between the punctures. Paraocular fovea extends from the base of the eye not more than an ocellar distance beyond the antennal socket, not contiguous to the eye margin near emargination. Paraocular area sculpturing similar to that of the supraclypeal area. Frons densely punctulate; areolate between the punctures. Gena covered with decumbent white setae. Scape dark brown. Flagellum mostly dark brown, ventrally light brown to yellow.

MESOSOMA. Pronotal dorsolateral angle obtuse, or with a rounded aspect. Pronotal lobe yellow. Tegula amber with a yellow band on the inner margin. Wing membrane hyaline. Mesoscutum anterior margin rounded, not acuminate-shaped; surface bluish green; covered with very short tomentum and few sparse darker erect setae, more visible from an oblique view; puncticulate to punctulate; lineolate to coriaceous (with a lineolate appearance, but sometimes the lines connect forming a leather-like sculpture). Mesepisternum bright green. Pre-episternum crowded areolate. Hypoepimeral area coriaceous. Mesepisternum puncticulate and coriaceous laterally, becoming polished ventrally. Metapostnotum not depressed in the median posterior surface; bluish green; entirely areolate to coriaceous.

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

METASOMA. Terga dark brown with bluish reflections; without yellow 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 4.88 mm. Head width 1.58 mm length 1.2 mm. Clypeoantennal distance 0.3 mm. Distance between subantennal sutures 0.34 mm. Lower interocular distance 0.66 mm. Upper interocular distance 0.8 mm. Scape length 0.56 mm. Intertegular distance 1 mm. T1 width 1.24 mm. T2 width 1.56 mm. T3 width 1.7 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 not depressed in the middle; green, with an apical band yellow, which is projected upwards in the center; covered with sparse short white decumbent setae and with a band of long apical setae; puncticulate; polished between the punctures. Supraclypeal area puncticulate, more densely punctate towards the upper portion; polished between the punctures, but areolate closer to the antenna. Paraocular area fovea absent. Paraocular area sculpturing similar to that of the supraclypeal area. Frons densely punctulate; strongly areolate (with a rough aspect). Gena covered with decumbent white setae and post-gena with longer plumose setae; polished. Scape dark brown; covered with sparse short erect setae (<0.1 mm). F1 about the same size as the pedicel (0.1 mm). Flagellomeres F2–F11 mostly subequal. Flagellum mostly dark brown, ventrally light brown to yellow.

MESOSOMA. Pronotal dorsolateral angle obtuse or with a rounded aspect. Pronotal lobe yellow. Tegula amber. Wing membrane hyaline. Mesoscutum with the anterior margin rounded, not 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; weakly lineolate. Scutellum crowded lineolate. Mesepisternum bright green; puncticulate and polished between the punctures. Metapostnotum surface flat/at the same level as the propodeum; bright green; entirely lineolate to coriaceous.

LEGS. Fore coxa brown, remaining segments yellow. Mid coxa brown, trochanter yellow, femur mostly yellow, with a brown apex or ventrally, tibia brown with a yellow apex, basitarsus yellow. Hind coxa and trochanter brown, femur brown with a yellow tip, tibia brown, basitarsus amber.

METASOMA. Terga clavate form (about the same width, apex more dilated); dark brown without yellow maculations; covered with short decumbent setae very sparsely distributed in T1, which progressively become denser towards T6; lineolate. S5 without any projection.

GENITALIA. Gonobase expanded, about as long as gonocoxite, without basal projection. Gonocoxite short, basal portion of the dorsal inner margin forming a long digitiform projection, apical portion also developed, with gonapophysis median lateral projections occupying this space. Gonapophysis apex slender, dorsally with median lateral projections. Gonostylus basal lobe transverse, with short setae; ventral process slender, with small setae elsewhere and long setae apically, dorsal process membranous. Volsella short and rounded.

MEASUREMENTS. Approximate body length 5.6 mm. Head mean width 1.12 mm. Head mean length 1.04 mm. Clypeoantennal mean distance 0.4 mm. Mean distance between subantennal sutures 0.28 mm. Lower interocular mean distance 0.4 mm. Upper interocular mean distance 0.66 mm. Scape mean length 0.32 mm. Intertegular mean distance 0.5 mm. T1 mean width 0.48 mm. T2 mean width 0.52 mm. T3 mean width 0.68 mm.

Distribution

Brazil: Amapá.

Remarks

Both female and male specimens are glued to a triangular paper in a way that hinders the visualization of certain body parts.

Figures

Fig. 2. Details of female mesoscutum.A. Habralictus beatissimus(Cockerell, 1901). B. H. canaliculatus Moure, 1941. C. H. cyaneus sp. nov. D. H. crassiceps (Moure, 1941). E. H. ligeus (Schrottky, 1911). F. H. macrospilophorus Moure, 1941. G. H. callichroma (Cockerell, 1901). H. H. acuminatus sp. nov. DZUP. Scale bar = 0.5 mm.

Fig. 13. Habralictus cyaneussp. nov., holotype, ♀ (DZUP522383). A. Head in frontal view.B. Mesosoma in lateral view. C. Mesosoma in dorsal view. D. Metasoma in dorsal view. Scale bar = 0.5 mm.

Fig. 14. Habralictus cyaneussp. nov., paratype, ♂ (DZUP 522514). A. Head in frontal view.B. Mesosoma in lateral view. C. Mesosoma in dorsal view. D. Metasoma in dorsal view. Scale bar = 0.5 mm.

Fig. 21. Distribution maps for Habralictus Moure, 1941 from Brazil. A. H. canaliculatus Moure, 1941 and H. beatissimus (Cockerell, 1901). B. H. macrospilophorus Moure, 1941 and H. ligeus (Schrottky, 1911). C. H. callichroma (Cockerell, 1901), H. chlorobaptus Moure, 1941 and H. crassiceps Moure, 1941. D. H. acuminatus sp. nov., H. cyaneus sp. nov., H. nitidus sp. nov. and H. obscuratus sp. nov.