CLERUCHUS Enock, 1909

(Figs 279–310)

Cleruchus Enock, 1909: 453 . Type species: Cleruchus pluteus Enock, 1909, by monotypy.

Eucleruchus Ogloblin, 1940: 600 . Type species: Eucleruchus neivai Ogloblin, 1940, by original designation. Synonymy by Luft Albarracin et al., 2009: 3.

Stenopteromymar Ferrière, 1952: 41 . Type species: Stenopteromymar biciliatus Ferrière, 1952, by monotypy. Synonymy by Viggiani, 1974b: 88.

Paracleruchus Yoshimoto, 1971: 1079 . Type species: Paracleruchus pieloui Yoshimoto, 1971, by original designation. Synonymy by Viggiani, 1974b: 88.

Douttiella Annecke, 1961b: 71 . Type species: Douttiella depressa Annecke, 1961, by original designation. Synonymy by Noyes & Valentine, 1989: 31.

Haplochaeta Noyes & Valentine, 1989: 35 . Type species: Haplochaeta mandibularis Noyes & Valentine, 1989, by original designation. Synonymy by Lin et al., 2007: 29.

Bakkendorfia Mathot, 1966: 229 . Type species: Bakkendorfia musangae Mathot, 1966, by original designation. Synonymy by Huber & Triapitsyn, 2017: 40.

Diagnosis. Body length 330–1040 μm. Head in lateral view with face strongly projecting anteriorly, with a sharp angle (about 90°) between dorsal and ventral surfaces and toruli just dorsal to angle (Figs 280, 284a, 295); vertex with ocelli in a low, wide triangle, the lateral ocelli at posterolateral angles next to posterior apex of supraorbital trabecula (Figs 281, 296); funicle segments quadrate (Fig. 285) to wider than long; clava 1-segmented (Figs 280, 285); frenum entire (Fig. 287); fore wing narrow and parallel-sided, with widest point at posterior lobe opposite or just distal to venation (Figs 279, 292); ovipositor short, less than half length of gaster (Figs 290, 305).

Discussion. Cleruchus and Platystethynium (Platypatasson) belong in the Cleruchus group of genera, which consists of species with rather dorsoventrally flattened bodies, claval segments quadrate or shorter than wide (Figs 285, 805) and head in lateral view triangular, with face strongly projecting anteriorly (Figs 280, 284, 295, 800, 804) so toruli are well anterior to the mouthparts. This group could be treated a subgroup within a larger Anagrus group of genera depending on which features are used to define the group. Cleruchus differs from Platystethynium (Platypatasson) by the clava 1-segmented (entire) clava.

Nearctic hosts. Coleoptera: Curculionidae, possibly Ciidae .

Important reference. Triapitsyn (2014a).