Psyche 
[December 
6 . 
7 - 
8 . 
10. 
1 1. 
12. 
13. 
mules below 7 
Broader; greenish nudipes 
Narrower; bluish or purplish soror 
Greenish f rater 
Black or purplish 8 
Black or faintly purple; smaller (18-20 mm.) mutatus 
Purple; larger (23-25 mm.) fisheri 
Only 2 pairs supra-ocular and 2 pairs lateral prothoracic setae 
(but extra apical ventral setae) present eungella 
Extra supra-ocular and/or lateral prothoracic setae present ... 10 
Prosternal process setose; if prosternal setae broken or not visible, 
note 3 supra-ocular and 4 or more median-lateral prothoracic 
setae each side, and odd elytral intervals costate mixtns 
Prosternal process not setose 1 1 
Only 2 pairs supra-ocular setae present, and odd elytral intervals 
raised 12 
Extra supra-ocular setae present, or odd elytral intervals (except 
7th) scarcely raised and humeri scarcely dentate 13 
Black cordatus 
Purple spec 
Only 1 pair median-lateral prothoracic setae present; odd elytral 
intervals costate setosiceps 
Extra lateral prothoracic setae present; odd elytral intervals (ex- 
cept 7th) not costate Hr rani a 
Trichosternus fax new species 
Form as figured (Fig. 1), subparallel, not strongly convex; black, 
head slightly metallic, pronotum with green or bluish marginal chan- 
nels and copper-purple on disc brightest in baso-lateral areas, elytra 
with marginal channels blue or greenish blue; pronotum shining, head 
and elytra slightly duller. Plead c. 3/4 or slightly more width pro- 
thorax ; eyes moderate, genae c. wide as eyes, rounded and somewhat ' 
narrowed to neck; antennae rather short (in genus), passing base of 
prothorax by 1 or 2 segments; 2 supra-ocular setae each side. Pro- 
thorax subquadrate, c. 1/3 wider than long at middle, not much nar- 
rowed behind; base c. 1/10 or more wider than apex (variable); 
apex broadly emarginate but angles not otherwise advanced, not mar- 
gined; base subtruncate, slightly emarginate at middle, strongly mar- 
gined at sides; sides weakly arcuate for much of length, broadly, 
slightly sinuate before c. right, well defined posterior angles; lateral 
margins narrow, slightly wider posteriorly, each with a seta about 
1/3 from apex and on margin at basal angle; disc rather flat, middle 
