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1. Abdomen from segment 3 reddish-brown (a). Frons
with prominent trapezoid fringe of golden pilosity (male unknown) (b)…
Chalinus
davidi
- Abdomen from segment 3 metallic green or blue (A).
Frons usually with scattered hairs, but not with prominent fringe of
pilosity (B) … 2
2. First antennomere short, cylindrical, straight
(a); remaining antennomeres mostly flat and constricted basally in
both sexes (a); female antennae without stout hairs (a). Hind femur
with denticles ventrally (b). Female tergum 8 with well-developed
projection medially on hind margin (c) … 3
- First antennomere elongate, flattened, curved (A);
remaining antennomeres not flattened in females, and not constricted
basally (A); female antenna with stout hairs (A). Hind femur without
denticles ventrally (B). Without distinct projection on female
tergum 8 (C) … 4
3. Dense tuft of hair on thorax just below tegula
(a). Fore wing with hyaline area proximally of discal cell (b), in
addition to small hyaline spot distally (b) …
Chalinus berlandi
- Without distinct hair patch below tegula (A). Fore
wing infuscate proximally of discal cell, with single small hyaline
spot distally (male unknown) (B) …
Chalinus haugi
4. Hind tibia with creamy white patch extending for
most of its length (a) …
Chalinus albitibialis
- Hind tibia bluish-green metallic or brown, without
extensive white patch (A) … 5
5. Antennomere 1 not expanded proximally, triangular
in outline or cylindrical, with ventral carina not developed for
entire length, or absent (a). Fore wing with large hyaline areas (b). Tergum 2 with smooth dark anterolateral areas separated from
antecosta by less than 0.25 of length of area (c) … 6
- Antennomere 1 expanded proximally, rectangular in
outline, with ventral carina developed along the entire length (A),
especially prominent in male. Fore wing at most with narrow hyaline
band distally of pterostigma, and along distal part of posterior
margin (B). Tergum 2 with smooth dark anterolateral areas separated
from antecosta by at least 0.50 length of area (C) … 7
6. Antennomere 1 of subequal width throughout, with anteroventral
projection at most weakly developed (a, b) …
Chalinus timnaensis
- First antennomere triangular in outline, anteroventral
projection distinct, most prominent in males (A) …
Chalinus plumicornis
7. Tergum 1 with scattered pits, tergum 2
predominantly smooth anteriorly (a) …
Chalinus imperialis
- Tergum 1 densely punctured, tergum 2 densely
sculptured anteriorly (female unknown) (A) …
Chalinus purpureiventris
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