Aleyroctonus Masner & Huggert

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]