StaphjlhddcB of the Amazon Valle?/. 59 



Calodera. 



The insect to -wliicli I have ijiven 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 antennas are 

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

 moderately elongate, is not equal to the tAvo folloAving 

 together; the middle coxje are rather widely separated, 

 the suture between the meta- and meso-sterna being near 

 the front of the coxa?, and nearly straight. The insect, 

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

 AUocharaires, which he names Phlceojmratcs and Calode- 

 ratcs. I have made use of the generic name Calodera 

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

 restricted 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 stn\cture. 



1. Calodera sijntlieta, n. sp. Capite thoraceque fuscis, 

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

 que nigris, jjedibus antennisque testaceis, his apicem versus 

 infuscatis; angustula, subtiliter punctata, abdomine fere 

 Irevigato, antennis elongatis, prothorace basin versus an- 

 gustato. Long. corp. 1^ lin. 



Antennae 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, acimiinate, its apex rather paler 

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

 thorax, nan-owed behind, with a moderately broad neck ; 

 the eyes large, the genai not margined ; blackish in coloin-, 

 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, Avhich 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-yclloAV ; the surface indistinctly and not densely punc- 

 tiu-ed, Avithout channel or fovea. Scutellum large ; elytra 

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



