StupJiijlinidcE of the Amazon Valleij. 173 



Antennte rather shorter than head and thorax, a little 

 thickened towards the extremity ; the three basal joints 

 yellow, the following ones blackish, the last joint again 

 yellow ; 2nd and 3rd joints al)ont equal, the penultimate 

 joints not quite so long as broad. Mandibles and palpi 

 yellow. Head bright yellowish-red, slightly broader than 

 the thorax (in the $), the front distinctly produced be- 

 tween the antennffi, wdth a deep longitudinal impression in 

 front, with two punctures on each side in a line near the 

 front part of the eyes, and with several other large punc- 

 tures on each side at the back. Thorax much narrower 

 than the elytra, about as long as broad, a little narrowed 

 behind, the sides slightly sinuate, the fi-ont angles distinct, 

 and nearly right angles ; it is of a brassy colour, and has 

 on each side the middle a row of five very coarse punc- 

 tures, and with six other very large punctures near the 

 front angles. Scutellum densely and finely punctured. 

 Elytra broad, about as long as the thorax, bright tawny, 

 with a large lateral spot on each side near the extremity 

 blackish ; they are rather deeply and rather closely but not 

 coarsely punctured. Hind body tawny, Avith the 5th and 

 6th segments black, the extremity of the latter and the 7th 

 yellow ; it is distinctly and moderately closely punctured, 

 the punctuation being denser on the 5th and 6th segments 

 than elsewhere, these segments also with a coarse de- 

 pressed black pubescence. Legs yellow ; under surface 

 tawny, intermediate coxte distant. 



Ega and St. Paulo ; two specimens ; one of them I have 

 proved by dissection to be a female, and the other does not 

 differ fr'om it by any external character. 



12. Philonthus polpalis, n. sp. Kufo-testaceus, niti- 

 dus, antennis medio obscurioribus, abdomine ante apicem 

 nigro; prothorace serie dorsali 5-punctato, punctis grossis ; 

 palpis labialibus articulo ultimo clavato. Long. corp. 

 3| lin. 



•AntennsB moderately long, reddish, the three basal 

 joints yellow, and the two apical ones a little paler than 

 the preceding ones; 3rd joint about equal to 2nd; 4th joint 

 rather longer than broad, 10th not quite so long as broad. 

 Second joint of maxillary palpi a good deal broader than the 

 others; the last joint of the labial palpi slender at the base, 

 but dilated towards the extremity, which, however, is not 

 truncate, but almost acuminate. Head yellowish, broader 



