170 THE ENTOMOLOGIST. 
smooth, shining. The’general effect of the dense punctuation is 
to give the species an opaque appearance ; it is very close to 
gemellata, Lef., from Bolivia, but that form has the hind tibia of 
the ¢ simple, and the punctures are green. The punctures of 
the elytra are really a close. series of fovew, arranged in pairs 
and often confluent. 
Colaspis viridicollis, sp. nov. 
Smaller than ¢rivialis, Boh. Body below chestnut brown ; head 
shining brown, tinged with green; thorax very thickly finely 
punctured, brown, strongly shining greenish, the extreme edges and 
also the outside edges of the elytra metallic green; elytra brown, 
strongly greenish iridescent, costate in the ?, at the apex only ¢. 
Types, five ¢, two 9, Paramba (3500 ft., April, 1897, dry season, 
Rosenberg). 
Length, 4-5 mm. 
Head with strong transverse depression between the eyes, 
vertex tumid; antenne with joints 7 and 11 darker, thorax 
strongly bidentate at the sides; the punctuation as usual a 
little heavier at the sides. Elytra strongly transversely depressed, 
and also within the shoulder, so that the sutural area is promi- 
nently raised (like Compta); yunctuation fine, fairly regular 
geminate, the intervals defined, but not raised in the 3S except 
at the apex, regularly costate almost from base to apex in ?, 
body a little more attenuate in the g than ? ; sometimes the 
legs are infuscate at the knee and apex of tibia and tarsi. The 
species goes near submetallica, Jac. 
Colaspis bolivianus, sp. nov. 
Small, like znconstans, Lef. Above, bronzed, shining, with more 
or less greenish tint, lateral and basal thoracic, as well as edges of 
elytra very narrowly metallic green, bottom of punctures greenish ; 
body below metallic greenish, bronze, the colours predominating 
according to the angle of vision; legs flavous, thighs tinged with 
eeneous. 
Types, four ¢, six ?, Cochabamba, Boliv. (Germ.). 
Length, 3-5-4 mm. 
Head finely and evenly punctured, with both transverse and 
longitudinal depressions ; antenne dark rufous, fuscous at tip ; 
thorax thickly, evenly and strongly punctate, bidentate at the 
sides (the anterior rather obsolete), transversely depressed before 
the middie (semi-collared) ; elytra transversely depressed, with 
raised scutellar area (like Compta); punctures not as strong as 
thorax, except laterally; lineate next the suture, semi-geminate 
on the disc, larger, confused, and somewhat confluent laterally, 
forming transverse rug, obsoletely subcostate at apex. Nearly 
related to manca, Er., but much smaller, and without the 
pronounced metallic greenish or violet colour of that form, which 
