237 
disk obtusely tubercular, with a dusky stripe on each side. 
Scutellum tawny yellow. Elytra elongate, regularly punctate- 
striate (punctures large), tawny yellow ; a quadrate patch over 
the scutellar region, a basal marginal streak, and a broad fascia 
at the apex black. Body beneath black; legs black; thighs, 
except their apices and the bases of the tibiae, yellow testaceous. 
S. Paulo, Upper Amazons. 
6. Callia cler aides ^ n. sp. 
C. sublinearis, postice paulo ampliata, setosa, nigra ; capitis lineolis, 
thoracis vitta laterali antennarumque annulo magno mediano 
fulvo-flavis. Long. 3| lin. S . 
Head small, deeply impressed in the middle, black, a line 
down the centre of the crown and one on each side, and the 
lower part of the face, tawny. Antennse as long as the body, 
black, apex obscurely rufescent ; apical half of the fourth and 
nearly the whole of the fifth joint clear tawny yellow. Thorax 
elongated, lateral tubercle small, conical ; surface coarsely punc- 
tured and tubercular, black; sides each with a broad golden- 
fulvous vitta. Scutellum black. Elytra elongated, a little 
dilated at the apex ; surface setose, closely punctured, partly in 
rows, black ; lateral edges near the base obscurely rufescent, and 
an indistinct streak from the shoulder down each side dull 
tawny. Body beneath clothed with silvery-grey tomentum. 
Legs black ; femora at the base rufescent. 
Ega. 
The preceding series of species, mimicking respectively various 
types of Coleoptera, do not exhaust the variety of dress which 
the Calli(B put on. I have a small species in my collection, 
from Rio Janeiro, which presents the style of coloration of cer- 
tain species of Lampyridse*. 
Genus Pretilia, nov. gen. 
Closely allied to Callia, but differs in the thorax being un- 
armed on the sides. This part of the body is short, convex, and 
rounded, the sides being tumid instead of having the distinct 
conical tubercle. The eyes are short and convex, their reniform 
* Callia lampyroides. Elongato-oblonga, depressa, setosa, fusco-nigra, 
testaceo marginata. Caput breve, nigrum, laeve, ore testaeeo mar- 
ginato. Antennae corpore multo breviores, parce ciliatae, nigrae, arti- 
culis basi pallide testaceis. Thorax subquadratus, supra tuberosus 
interstitiis grossissime punctatis ; niger, lateribus litura rufo-testacea, 
breviter tuberculatis. Elytra elongato-oblonga, apice rotundata, se- 
tosa, supra punctata, fusco-nigra, lateribus late testaceo marginatis. 
Corpus subtus nigrum. Pedes nigri; coxae et femora pallide-testacea, 
his nigro maculatis. Long. 3^ lin. $ . Hab. in Rio Janeiro (Squires). 
