Knowltonia
Creators: name: Westcott, Richard L.
name: Barr, William F.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Knowltonia

description: Key to the species of Knowltonia
1 Brown or coppery, abdomen comparably colored beneath.......................................................................... 2
- Green, sometimes with weak to strong bronzy or coppery reflections, rarely, bluish or with pronotum violet or predominantly coppery; abdomen green (often bright) or dark beneath............................................ 4
2 Elytra with 3 pairs of distinct, usually strongly marked irregular black or violaceous-black spots that sometimes coalesce longitudinally and usually are narrowly margined with blue-green ........................... 3
- Elytra without black spots, or with weakly marked middle and apical pair (rarely, the latter are strongly evident); if present, basal pair smaller and indistinct; spots not coalesced or margined with blue-green..... .................................................................................................................................. alleni (Cazier) (in part)
3 Male with rami of antennomeres 5–10, or at least 5–6 noticeably asymmetrical (Fig. 8); of antennomere 11 distinctly asymmetrical; dark form known only from Texas .................. atrifasciata (LeConte) (in part)
- Male with rami of antennomeres 5–11 subequal to equal in length (Fig. 4); dark form known from Idaho, Nevada, Utah ........................................................................................................ biramosa Fisher (in part)
4 Abdomen beneath usually green, occasionally with coppery reflection, rarely violet or bluish; if dark, then
male antennomeres 5–10, and usually 11 nearly or entirely symmetrical (Fig. 4); widespread, though not known in Colorado Desert region................................................................................................................ 5 - Abdomen black with coppery, brassy, sometimes slightly greenish reflection; male antennomeres 4–10 highly asymmetrical, the inner rami (when present) at most elongate-triangular, antennomere 11 elongate, sometimes with a tiny inner tooth (Fig. 7); species largely of the Colorado Desert region .... calida (Knull)
5 Abdomen beneath green, occasionally with coppery reflection; male antennomeres, at least 5, 6 and, especially, 11 noticeably asymmetrical, the inner rami usually more stout (Fig. 8)........................................... 6
- Abdomen beneath green or dark, rarely violet or bluish; male antennomeres 5–10, and usually 11 nearly or entirely symmetrical (Figs. 4–5) ....................................................................... biramosa Fisher (in part)
6 Elytra without black spots, or with weakly marked middle and apical pair (rarely, the latter are strongly evident); if present, basal pair smaller and indistinct; spots not coalesced or margined with blue-green..... .................................................................................................................................. alleni (Cazier) (in part)
- Elytra with 3 pairs of distinct, variably sized, usually strongly marked irregular black or violaceous-black spots that only rarely coalesce longitudinally and are narrowly margined with blue-green ......................... ..................................................................................................................... atrifasciata (LeConte) (in part)
description: Published as part of Westcott, Richard L. & Barr, William F., 2007, Resurrection and review of the genus Knowltonia Fisher, with description of a new subspecies of Chrysobothris Eschscholtz and new species of Acmaeodera Eschscholtz from North America (Coleoptera: Buprestidae), pp. 49-58 in Zootaxa 1481 on pages 51-52, DOI: 10.5281/zenodo.273778