Ochreriadini Gonzalez & Engel, 2019

Gonzalez, Victor H., Gustafson, Grey T. & Engel, Michael S., 2019, Morphological phylogeny of Megachilini and the evolution of leaf-cutter behavior in bees (Hymenoptera: Megachilidae), Journal of Melittology 2019 (85), pp. 1-123 : 58

Ochreriadini Gonzalez & Engel , new tribe

ZooBank: urn:lsid:zoobank.org:act:D70C4AF0-CE03-4A89-9881-AA8ABAE29225

( Fig. 15 )

TYPE GENUS: Ochreriades Mavromoustakis, 1956 .

DIAGNOSIS: This tribe is readily separated from all other tribes of Megachilinae by the following combination of features: body elongate and with yellow or ivory integumental markings; pronotum distinctly elevated and surrounding mesoscutum anteriorly; mouthparts elongate, reaching tip of metasoma.

DESCRIPTION: ♀: Clypeus not overhanging labral base; labrum not elongate, margin without fringe or apical tuft of setae; maxillary palpus trimerous (three palpomeres); metepisternum with dorsal carina or lamella; pronotum enlarged and surrounding mesoscutum anteriorly, practically eliminating omaular surface of mesepisternum and anterior surface of mesoscutum; mesoscutellum flat, on same plane with metanonum and propodeal base, as seen in profile; T6 without wide apical hyaline rim; S6 without lateral or apical projection.

♂: Metasoma with six sterna visible; S2 and S3, each with disc swollen; S4 with dense pubescence on disc; S5 not emarginate, with branched or simple discal setae; T7 exposed, inferiorly directed .

COMMENTS: This tribe contains a single genus, Ochreriades , which consists of two species. Ochreriades fasciatus (Friese) occurs in the Middle East whereas O. rozeni Griswold occurs in Namibia, Africa ( Griswold, 1994; Ascher & Pickering, 2018).

Figures

Figure 15. Tribes Pseudoheriadini and Ochreriadini. A. Female of Afroheriades hyalinus Griswold & Gonzalez in lateral view. B. Male terminal terga of Pseudoheriades moricei (Friese). C, D. Female of Ochreriades fasciatus (Friese) in dorsal and lateral views. E. Male terminal terga of O. fasciatus.