StopliijUnidcc of the Amazon Vallei/. 59 



CALODEPtA. 



The insect to winch I have given this generic name is 

 one Avhich, in relation to our European species, must be 

 considered very anomalous. The tarsi are all 5-jointed ; 

 the head is distinctly constricted behind ; the antennse are 

 elongate, and the basal joint of the hind tarsi, though 

 moderately elongate, is not equal to the two following 

 together ; the middle coxas are rather Avidely separated, 

 the sutin-e between the meta- and meso-sterna being near 

 the front of the coxfe, and nearly straight. The insect, 

 therefore, is intermediate between Key's two rameaux of the 

 Aleocharaires, which he names Phlceoparates and Calode- 

 rates. I have made use of the generic name Calodera 

 rather than Phloeopora, because the latter is used only in a 

 resti'icted sense — that is, for a few species closely resem- 

 bling one another — while Calodera is a A^ery elastic and 

 general term, applied to a number of insects with very 

 different facies, and varying much in structure. 



1. Calodera si/nihcta, n. sp. Capite thoraceque fuscis, 

 elytris fusco-testaceis, basi dilutiore, abdomine medio apice- 

 que nigi'is, pedibus antennisque testaceis, his apicem versus 

 infuscatis ; angustula, subtiliter punctata, abdomine fere 

 la3vigato, antennis elongatis, prothorace basin versus an- 

 gustato. Long. corp. 1^ lin. 



AntennfB elongate, rather slender, but a little incrassate 

 towards the extremity, the three or four basal joints pale 

 yellow, the following ones darker, and the three or four 

 apical ones strongly infuscate ; 3rd joint slightly longer 

 than 2nd; 4th slender and rather long; 10th about as long 

 as broad ; 11th joint elongate, about as long as the three 

 preceding joints together, acuminate, its apex rather paler 

 in colour than its base. Head about as broad as the 

 thorax, narro^ved behind, with a moderately broad neck ; 

 the eyes large, the gena? not margined ; blackish in colour, 

 finely punctured, a little shining. Thorax not quite 

 so long as broad, narrower than the elytra, the sides 

 much rounded at the front angles, narrowed and sinuate 

 tOAvards the base, which is rounded ; the lateral and basal 

 margins distinct, the hind angles depressed, but a little 

 prominent, and rather obtuse ; the colour is deeply infus- 

 cate-yellow ; the surface indistinctly and not densely punc- 

 tured, without channel or fovea. Scutelhun large ; elytra 

 rather longer than the thorax, yellow at the base, infus- 



