COLEOPTERA. 
215 
elongate and slender, as well as their club. Thorax abruptly (S') more 
obliquely ( £ ) ampliate anteriorly, hardly broader than long, little con¬ 
vex, almost smooth, with very slight strigosities above the base ; anterior 
striga rather deep, little arcuate; the median deeper, more arcuate, 
recurved downwards at the sides. Elytra little convex, smooth; a sutu¬ 
ral and a marginal striga, punctate, are the only important impressions. 
The basal pellucid flavous macula is very large and convex, and is im¬ 
pressed on the elytra nearly all round its circumference (base, of course, 
excepted), occupying about two-thirds of the width, and almost the 
basal third of the length. Thorax underneath having an oblique 
longitudinal striga not far from the coxae, and strong foveiform punc¬ 
tures at the base. Pygidium and pectus slightly punctate; abdomen 
obsoletely punctulate. 
Euscelus carneolus, Erichson. 
The too short description of Erichson* agreeing with several species 
known to me, I must, in this perplexity, regard the various specimens of 
a species inhabiting Para, the Amazons and Cayenne, as representing 
that Erichsonian species, and I have to add that it varies as follows :— 
Var. a. (Maxim, color.) Sanguineo-rufus ; ore, antennis , oculis , linea 
medio capitis et thoracis , scutello medio , macula humerali 
apiceque elytrorum , punctis duobus pygidii apiceque femorum 
anguste nigris. 
* Very likely such are not the Erichsonian descriptions that my 
friend, Mr. A. White (Ann. Nat. Hist. ii. 356, Nov. 1858), would 
lead the actual and future authors to take model upou. Of course, 
the fame of Erichson, one of the most transcendant of our modern 
entomologists, has nothing to suffer from this my humble reply. Now, 
a word touching my micrometrical admeasurements: I cannot regard 
them with Mr. White (loc. cit.), as individual in their proportions; let 
these be taken upon the smallest, middling or largest specimens, they 
always have the same proportional results, and save us from eternal 
sentences like these: “ Elytra .... thorace dimidio, duplo, triplo . .. . 
latiora .... longiora . . . .” &c., and are far more exact. 
