Orientagallia Zhang & Webb 2026, gen. nov.

Orientagallia Zhang & Webb gen. nov. Type species. Orientagallia viraktamathi Zhang & Webb, sp. nov., designated here. Diagnosis. This is a genus similar to Dianagallia Zhang & Webb, 2026 (Zhang et al. 2026) in having paired black spots on the vertex, pronotum, and antennal sockets, a strongly sclerotized anal collar bearing elongate process, and a T-shaped connective with the lateral arms shorter than the stem. It is distinguished from Dianagallia by the male genitalia: aedeagus with distinct preatrium extending below apex of connective; shaft without processes or with ventral subapical process (in Dianagallia, aedeagus with pair of lamellate apical processes and preatrium absent); pygofer without processes (in Dianagallia, pygofer with single long, spine-like process on each side). Description. Colouration. Colour ochraceous with dark-brown to black markings on head and thorax. Vertex with two large, round black spots, closer to each other than to eyes; antennal sockets dark brown; posterior half of pronotum with two subtriangular black markings. Morphology. Head with posterior margin sinuately curved laterally behind eyes. Ocelli closer to eyes than to each other. Forewing with three anteapical and four apical cells present; inner anteapical cell open posteriorly. Hind tibial macrosetae arranged as PD 8–12, AD 7–8, AV 6–7. Hind basitarsus with one platella in distal transverse row. Male genitalia. Pygofer trapezoidal in lateral view, with a dorsocaudal lobe and narrow dorsal bridge. Anal collar present with each lateral branch bearing a well-developed, elongate apical process. Subgenital plates lacking long, stout setae. Styles with inner arm either as long as or longer than outer arm. Connective T-shaped, with lateral arms shorter than stem. Aedeagus simple; shaft tubular or laterally compressed, curved dorsad; gonopore apical on ventral surface; preatrium present, short, extended below apex of connective stem; dorsal apodeme well developed, laterally compressed, with or without a basal ventral process. Female genitalia. Valvulae as in Fig. 3 j – m. First valvulae, in lateral view, with alveolate sculpture in distal two-thirds. Second valvulae, in lateral view, with distinct dorsal hyaline and sclerotized area. Distribution. Oriental region (China, India). Etymology. The generic name is derived from the combination of “ Orienta ” for Oriental (the distribution of the new genus) and the suffix - agallia, referring to the type genus of Agalliini. Gender feminine. Remarks. The new genus runs to Austroagallia Evans in the last couplet of the key to Oriental Agalliini (Viraktamath 2011), but it can be readily distinguished from that genus in having the ocelli closer to the eyes than to each other (rather than distinctly closer to each other), aedeagus symmetrical (as opposed to strongly asymmetrical), and connective with stem longer than lateral arms (rather than stem and lateral arms always nearly equal in length). Orientagallia also shares several diagnostic features with Dianagallia Zhang & Webb, including a pair of black spots on the vertex, pronotum, and antennal sockets; a strongly sclerotized anal collar bearing and elongate process; and a T-shaped connective with the lateral arms shorter than the stem. However, Orientagallia can be readily distinguished from Dianagallia in having the aedeagus with a distinct preatrium lying below the apex of the connective and shaft with or without a ventral subapical process (in Dianagallia, aedeagus has a pair of lamellate apical processes and the preatrium is absent); the pygofer in Orientagallia lacks processes (in Dianagallia, pygofer bears a single long, spine-like process). Orientagallia is also similar to Igerna but differs in having the ocelli closer to the eyes than to each other (in Igerna sensu stricto, ocelli are slightly closer to each other than to the eyes), well-developed and strongly sclerotized anal collar with an elongate process that is bifurcate or apically laterally expanded (in Igerna the anal collar is simple or reduced), a T-shaped connective with the lateral arms distinctly shorter than the stem (in Igerna, the lateral arms are subequal in length to the stem), and the aedeagal base not sunken into the dorsal apodeme and the shaft dorsally curved (in Igerna, aedeagal base is usually sunken into the dorsal apodeme and the shaft is typically curved ventrad). Checklist to species of Orientagallia gen. nov. O. kolasibensis (Meshram, 2015): 242 comb. nov. — India (Mizoram) O. priyankae (Viraktamath, 2011): 72–73 comb. nov. — India (Meghalaya), Nepal (Kathmandu), and China (Yunnan, new record) O. shillongensis (Meshram, 2015): 243 comb. nov. — India (Meghalaya), China (Yunnan) O. viraktamathi Zhang & Webb, sp. nov. — China (Yunnan) Key to species of Orientagallia gen. nov.