Nov., 1904.] South American Heniiptera-Heteroptera. 203 



ARADID^. 



Hesus sp. I have one specimen from Bartica, Br. Guiana, which 

 is doubtless the same as Mr. Van Duzee refers to cordatus 

 or acuminatus. Not having specimens of the three spe- 

 cies in hand comparisons with descriptions are unsatis- 

 factory, especially as the available descriptions are 

 indefinite in some important details. 



REDUVIID^. 



Pothea frontalis Lep. Bartica, Br. Guiana. Two specimens 



Ectrichodia immarginata Stal. Bartica, Br. Guiana. Two spec- 

 imens. 



Apiomerus pilipes Fab. Numerous specimens of this large hairy 

 rather coarse species from Bartica, Br. Guiana. 



Apiomerus sp. Bolivia. A small jet black species with a small 

 rose red spot on disk of corium. 



Micrauchenus lineola Fab. Bartica, Br. Guiana. Numerous 

 specimens. 



Callicopius nigripes Linn. Bartica, Br. Guiana. A fine series of 

 this species. 



Heniartes flavicans Fab. Bartica, Br. Guiana. A large number 

 included in the collection. The extreme amount of adhe- 

 sive secretion on the legs played havoc with many other 

 specimens. 



Conorrhinus renggeri Stal. One specimen from Santiago Chili, 

 collected by Prof. J. C. Hambleton. 



SERIDENTUS, nov gcn. 



Quite similar to Shaumannia, head slightty elongate and 

 broad, anterior portion widening before the eyes, spinous later- 

 ally, tylus deeply cleft, antenna with basal joint thick, thicker 

 than second but of equal length, 3d and 4th together about equal 

 to second, ocelli placed in line with hind border of eyes, margin 

 of head and pronotum denticulate, elytra shorter and narrower 

 than abdomen, abdomen behind broadly widened into mucronate 

 lobes, margin minutely denticulate, legs slender, anterior femora 

 somewhat swollen, rather sparsely dentictilate. Prothorax with 

 strong anteriorlv projecting spines. 



Seridentus denticulatus, n. sp. Bod}^ widening posteriorly, head, 

 thraox, abdomen, rows along the pleura beneath and the 

 femora denticulate. Length 19 mm., width of prothorax 

 2.3 mm. posterior segment of abdomen 3.5 mm. 



Eyes large, globose, coarsely granulate; lateral lobes 

 in front of eyes prominent, terminating in coarse spur; 

 tylus directed upward and forward, deeply cleft; antennae, 

 second joint eqtial to or slightly longer than first but more 

 slender, third and fourth together nearly as long as second, 

 fourth little shorter than third, all joints thickly pilose; 

 hinder border of head below set with a row of four strong 



