Lethades Davis, 1897

Reshchikov, Alexey, Xu, Zai-fu & Pang, Hong, 2017, First record of the genus Lethades Davis, 1897 from the Oriental region, with description of a new species (Hymenoptera, Ichneumonidae, Ctenopelmatinae), ZooKeys 644, pp. 43-50 : 45

Lethades Davis, 1897

Lethades Davis, 1897: 204. Type species: Adelognathus texanus Ashmead, 1890. Monobasic.

Diagnosis.

Lethades can be distinguished from all other genera in the Pionini by the combination of the following characters: first flagellomere longer than second; second trochanter of hind leg rounded without a transverse ridge; glymma present; profile of the propodeum nearly rounded with short posterior field; dorsomedian and dorsolateral carinae of the T1 converging at base; ovipositor without subapical notch; cerci parallel-sided and protruding ( Townes 1970, Cameron and Wharton 2011). The notaulus varies from absent to deep, but very short, in nearly all described species of Lethades . Only Lethades schaffneri Hinz has an elongate notaulus. The latter species was transferred to Lethades based on other characters, especially ovipositor morphology ( Cameron and Wharton 2011).

Key to world species of the genus Lethades