Nagiella Munroe, 1976

Lu, Xiao-Qiang & Du, Xi-Cui, 2020, Revision of Nagiella Munroe (Lepidoptera, Crambidae), with the description of a new species from China, ZooKeys 964, pp. 143-159 : 143

Nagiella Munroe, 1976

Nagia Walker, 1866: 1320 (preocc.). Type species: Nagia desmialis Walker, 1866, by monotypy.

Nagiella Munroe, 1976: 876. Type species: Nagia desmialis Walker, 1866, by monotypy (of Nagia Walker, 1866).

Diagnosis.

Frons rounded. Labial palpus broad, obliquely upturned and curved, compressed, third joint extremely minute, short and stout (Fig. 2 ). Male antenna with ventral cilia. Legs smooth. Fore wings near rectangular at the tips; length of cell approximately half of wing; R from cell at approximately two-thirds; Rs2 anastomosed with Rs3 approximately three-fifths beyond cell; Rs1 closely approximated to Rs2+Rs3; Rs4 curved towards Rs2+Rs3 at base; discocellulars arcuately incurved; M2, M3 and CuA1 from posterior angle of the cell uniformly at the base; CuA2 from three-fourths below the cell. Hindwing with length of cell one-third of wing; Sc+R anastomosed with Rs approximately one-fourth beyond the cell; M2, M3 and CuA1 separately from posterior angle of the cell; CuA2 from two-thirds below the cell; discocellulars incurved (Fig. 3 ). Male genitalia: Uncus short and wide; gnathos present in most species; valva lingulate, posterior margin with long setae cluster in most species; clasper near base, developed and pointed to sacculus; phallus cylindrical, cornuti absent in most species. Female genitalia: Apophyses anteriores longer than apophyses posteriores, rhomboidally expanded near base; ductus seminalis from the ductus bursae; corpus bursae oval, with signum.

Remarks.

According to Munroe (1976) and Ullah et al. (2017), Nagiella can be differentiated from its similar genera by its short and wide uncus, developed gnathos, broader valva with stout setae subapically, large oblique clasper and absence of cornuti, as well as by the type of wing maculation. In N. bispina sp. nov., however, the gnathos is absent, the valva costa has no stout setae, and cornuti are present. Other morphological and DNA barcode data of this new species indicate it as a member of the genus. Therefore, the diagnosis of Nagiella was revised based on previous studies and our research, including supplementation of the wing venation.

Figures

Figures 2, 3. Head and wing venation of Nagiella quadrimaculalis (Kollar & Redtenbacher, 1844). Wing slide no. LXQ 20001, male.