58 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. 62. 
KEY TG THE SPECIES, 
Ley Suarfaesiabayie wnicol ored sc spice a os ook ee nae. se renee a eee 2 
NuULisee apowe bicolored 248022 aha eae ee ee ee eee ere Se 6 
2. Epistoma very narrow; antennae nearly contiguous.......-.---------------- 3 
Epistoma transverse; antennae widely separated...........---------------- 4 
3. Above uniformly piceous, with a slight purplish tinge....... cuneiformis Fisher. 
Above uniformly steel-blue with an iridescent reflection ....timidus Kerremans. 
4--Color above uniformly, blue:<). ste - sxse/ssisc ea - ela see pioeie- -oBEeS Sauunmetd: 
Color above aeneous or cupreots' . joo Ae a eee ee a eer eee ee 
54 Color above aeneous..2. 32/2502. 5 0-2 ak sigan ee 2 ee Oe See TCA TS Ban mieRe 
Color above rufo-cupreous....-...-....-.-.--......-.-.--dissimilis Waterhouse. 
6. Pronotum piceouss.. 228 atl aibe fe ie ee See ae parvulus Waterhouse. 
Pronotummacneous GF CUpPreoUs -2oS8 72. 22a ee S& SSB SASS) eee es 7 
7. Form elongate, more than two times as long as wide; pronotum aureo-aeneous; 
elytra varying from greenish-blue to rufo-cupreous, with a purplish tinge. 
variabilis Waterhouse. 
Form shorter, not two times as long as wide; pronotum cupreo-aeneous; elytra 
varying from cyaneous to greenish-blue, with a violaceous tinge...........- 8 
8. Head and pronotum finely and regularly punctured; elytra wider than pronotum. 
amabilis Kerremans. 
Head and pronotum rather coarsely, very sparsely and irregularly punctured; 
elytra not distinctly wider than pronotum .........parvulus, var. Waterhouse. 
LIUS CUNEIFORMIS, new species. 
Male.—Elongate, cuneiform, strongly convex, strongly attenuate 
posteriorly, shining, and uniformly piceous above, with a slight 
purplish tinge; beneath piceous, without any purplish reflection. 
Head feebly convex, broadly and rather deeply depressed on the 
front, the depression becoming obsolete on the occiput, with a nar- 
row, longitudinal groove extending from the epistoma to the vertex; 
front narrow, about as wide as the tranverse diameter of the eye; 
surface glabrous, very sparsely punctate, the punctures very shallow 
and obsolete; intervals densely and finely, but distinctly reticulate- 
striolate; eyes moderately convex; epistoma very narrow, the anten- 
nae nearly contiguous. Pronotum strongly convex, nearly two and 
one-half times as wide as long at base, distinctly narrower in front 
than behind, widest at base; sides when viewed from above are 
parallel at the base for a very sbort distance, then strongly, obliquely 
attenuate to the anterior angles; posterior angles nearly rectangular; 
anterior margin nearly truncate; base feebly sinuate to beyond the 
middle of the elytron, then turning obliquely backward to the 
scutellum, in front of which it is feebly, arcuately emarginate; sur- 
face without a median carina, sparsely punctate, the punctures very 
shallow and obsolete, and with a few short, recumbent, inconspicuous 
hairs; intervals very finely and obsoletely reticulate-striolate. Scu- 
tellum triangular; anterior margin arcuately rounded; surface nearly 
smooth. LElytra strongly convex, slightly wider than pronotum at 
base, widest at base; humeral angles obtusely angulated; sides 
strongly, arcuately attenuate to the tips, which are separately 
