Nov., 1904.] 
South American Hemiptera-Heferoptera. 
203 
ARADIDvE. 
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 Stab 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 Stab One specimen from Santiago Chili, 
collected by Prof. J. C. Hambleton. 
SERiDENTUS, nov gen. 
Quite similar to Shaumannia, head slightly 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 denticulate. Prothorax with 
strong anteriorly projecting spines. 
Seridentus denticulatus. n. sp. Body 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 equal to or slightlv 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 
