Aleyroctonus Masner & Huggert, 1989

Lahey, Zachary, Masner, Lubomir, Johnson, Norman F. & Polaszek, Andrew, 2019, Revision of Aleyroctonus Masner & Huggert (Hymenoptera, Platygastridae, Sceliotrachelinae), Journal of Hymenoptera Research 73, pp. 73-93 : 73

Aleyroctonus Masner & Huggert

Aleyroctonus Masner & Huggert, 1989: 36 (original description. Type: Aleyroctonus pilatus. Masner & Huggert, by monotypy and original designation); Vlug 1995: 10 (cataloged, catalog of world species).

Description.

Head. Color of head: black. Shape of head in dorsal view: transverse. Occipital carina: present. Setation of compound eye: present. Hyperoccipital carina: absent. Occipital pit: absent. Preocellar depressions: present. Position of lateral ocellus: less than 1 OD from inner margin of compound eye. Antennal scrobe: present. Sculpture of antennal scrobe: transversely striate. Sculpture of upper frons: densely reticulate. Sculpture of vertex: densely reticulate. Malar striae: present. Malar sulcus: not apparent, undifferentiated from facial and malar striae. Facial striae: present. Epistomal sulcus: absent. Central keel: present. Shape of clypeus: almost V-shaped, projecting over mandibles. Anteclypeus: undifferentiated from postclypeus. Orientation of mandiblar teeth: transverse. Mandibular dentition: bidentate. Number of maxillary palpomeres: 1. Number of labial palpomeres: 1. Number of antennomeres, female: 10. Number of antennomeres, male: 9. Number of clavomeres: 3. Sensillar formula of clavomeres: 1-2-2. Condition of A7: not fused with A8, separated by a deep suture.

Mesosoma. Epomial carina: present. Pronotal shoulders: lateral portion visible in dorsal view, not angled. Sculpture of mesoscutum: reticulate. Anterior admedian line: present as pits. Median mesoscutal line: absent. Notaulus: percurrent. Parapsidial line: present. Mesoscutal humeral sulcus: present as a thin groove. Netrion: present. Scutoscutellar sulcus: present as a deep, noncrenulate groove. Sculpture of mesoscutellum: reticulate. Shape of mesoscutellum: nearly hexagonal, widest anteriorly. Setation of axillula: dense. Metascutellum: obscured medially by posterior margin of mesoscutellum. Setation of metascutellum: present. Transepisternal line: present, terminating in anterior and posterior pits. Mesopleural carina: absent. Metapleural carina: present. Metapleural sulcus: present posteriorly. Paracoxal sulcus: absent. Number of mesofurcal pits: 3. Setation of plical area: dense. Color of legs: yellow. Protibial spur: bifid. Tibial spur formula: 1-2-2. Tarsal formula: 5-5-5. Length of tarsal claws: equal.

Metasoma. Foamy structures: absent. Number of visible terga in female: 6. Number of visible terga in male: 8. Setation of laterotergites: present. Number of visible sterna: at least 6. Sculpture of terga: absent. Laterotergites: present. Laterosternites: absent. Nucha: present, visible in dorsal view. Sculpture of nucha: costate. Shape of T1: transverse. Anterolateral pits on T2: present. Longest tergite: T2. Transverse felt field on anterior S2: present, sparsely setose. Ovipositor: Ceratobaeus -type ( Austin and Field 1997).

Wings. Color of wings: hyaline. Wing development: macropterous. Length of fore wing: exceeding apex of metasoma. Marginal cilia of fore wing: present. Length of fore wing R: 1/3 length of fore wing. R of fore wing: tubular, remote from costal margin. Shape of knob of R: truncate. Cu of fore wing: spectral. M+Cu of fore wing: spectral. Marginal cilia of hind wing: present, longest along ventral margin. R of hind wing: present, 1/8 length of hind wing.

Male genitalia. Length of basal ring: 2/3 length of aedeago-volsellar shaft.

Diagnosis.

The presence of facial and malar striae, a distally pointed clypeus, 3-merous antennal clava, compound eyes with long setae, setation of the metascutellum, and the absence of foamy structures on the propodeum and metasoma separates Aleyroctonus from other members of Sceliotrachelinae . Excluding the clava, these characters are also present in males of the genus, facilitating the identification of specimens of either sex.

Link to distribution map.

[https://hol.osu.edu/map-large.html?id=7857]