Clypeus (Figs 2, 3) narrow, flat (Fig. 3) to slightly protruding ventrally (Fig. 2), type species with weakly elevated transverse ridge dorsally; surface sparsely punctate and partially wrinkled; margin sharp throughout (though a little less so in female of
sulphurata: Fig. 2), truncate to very weakly concave medially, lateral margins broadly angled and somewhat curved dorsolaterally; epistomal sulcus narrow, distinct. Malar space equal to or shorter than half basal width of mandible. Mandible (Figs 2, 3) short, curved to strongly curved, narrowing from base to apex; dorsal tooth wider and a little longer than ventral tooth; ventral margin carinate, sometimes strongly so. Inner eye margins parallel to weakly converging ventrally. Ocelli small, with maximum diameter of lateral ocellus shorter than distance between ocellus and eye. Maxillary palps shorter than height of head. Antenna nearly as long as body, at least in male; first flagellomere long and slender, about twice longer than second. Hypostomal carina joining occipital carina above base of mandible; occipital carina complete. Epomia absent or very poorly developed (Fig. 4). Dorsal end of epicnemial carina usually not extending to anterior margin of mesopleuron (Figs 4, 6) in
sulphurata, but extending to margin in
facialis; mesopleuron polished, punctate (Fig. 6). Notaulus (Fig. 5) absent to weakly impressed on anterior declivity; when present, not extending to anterior margin. Pleural carina usually distinct throughout; propodeal carinae reduced: lateral longitudinal carina distinct apically, but often indistinct basally (as in Fig. 7); median longitudinal carinae either absent or nearly so as in Fig. 7 or present as irregular, parallel ridges medially; petiolar area broad, incomplete: broadly open anteriorly with lateral longitudinal carinae forming lateral margins. Legs with apical comb on posterior side of hind tibia present; hind tibial spurs long, slender (Figs 1, 9), longest spur about half length of long hind basitarsus; all tarsal claws simple, not pectinate. Fore wing (Fig. 8) with areolet present; stigma relatively narrow, with Rs+2r arising from basal 0.35-0.4. Hind wing (Fig. 8) with first abscissa of CU1 distinctly shorter than 1cu-a. T1 (Figs 10-11) gradually widening posteriorly, not particularly slender nor short and broad; dorsal carinae confined to margins of broad basal depression of dorsal tendon attachment, otherwise absent; dorsal-lateral carina usually low, rounded, indistinct; glymma either absent, as in Fig. 11 or small and shallow as in the figure of the type species in
Townes (1970: 254). S1 extending to level of spiracle, which is slightly posteriorad middle of T1. T2 thyridium present (Fig. 12); laterotergites of T2 and T3 completely separated by creases. Ovipositor with subapical, dorsal notch. Setae on female subgenital plate slanted backwards, as in most other mesoleiines.
The species are relatively robust.
This description is modified from Townes (1970) and based largely on specimens of Perispuda sulphurata from the Canadian National Collection.
1.
Perispuda sulphuratus male ...
Perispuda sulphuratus male habitus
↰
↴
2.
Perispuda sulphuratus female face...
Perispuda sulphuratus female face
↰
↴
3.Perispuda sulphuratus male face
4.
Perispuda sulphuratus ...
Perispuda sulphuratus pronotum laterally
↰
↴
5.
Perispuda sulphur...
Perispuda sulphuratus mesoscutum
↰
↴
6.
Perispuda sulphuratus mes...
Perispuda sulphuratus mesopleuron
↰
↴
7.
Perispuda sulphuratus propodeu...
Perispuda sulphuratus propodeum
↰
↴
8.
Perispuda sulphuratus wings...
Perispuda sulphuratus wings
↰
↴
9.
Perispuda sulphuratu...
Perispuda sulphuratus hind leg
↰
↴
10.Perispuda sulphuratus T1
11.
Perispuda sulphuratus T1...
Perispuda sulphuratus T1
↰
↴
12.
Perispuda sulphuratus T2...
Perispuda sulphuratus T2
↰
↴