232 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 51. 



Family NABIDAE. 



ARCHNOCORIS TRINITATIS. new speciec. 



Smooth, shining, glabrous, piceoiis black; posterior lobe of pro- 

 notum finely and thickly punctulate with an extremely short erect 

 whitish pubescence; scutellum with a few rather long hairs; abdo- 

 men aenescent; posterior margin of pronotum and of propleura, 

 apical spine of scutellum, a subbasal vitta, median fascia, and tri- 

 angular spot at apical angle of corium, and margin of acetabula 

 white ; under side of head, orificia, and the evaporative area testaceous 

 yellow; metapleura at the anterior angle, ventral segments (except 

 fourth and sixth) at the lateral margins, and second ventral segment 

 at middle of apical margin with an ivory white callus; antennae, 

 rostrum, and legs pitchy black; apex of second antennal joint, fourth 

 joint (except base andapex),extremeapexof all femora, and a rather 

 broad annulation to hind femora (nearer to apex than to base) yel- 

 low or reddish; tibiae and tarsi fuscotestaceous, base of tibiae nar- 

 rowly whitish. First joint of antennae as long as head, second twice the 

 length of first, third distinctly longer than second, fourth somewhat 

 shorter than second. Pronotum scarcely as long as broad, posterior 

 lobe two-thirds longer than anterior lobe with collar. Scutellum 

 with a short semierect spine at apex. Hemelytra somewhat passing 

 apex of abdomen. Middle femora not incrassated in either sex. 



Length (without membrane). — Male and female, 4-4.2 mm. 



T7/pe.— Cat No. 20151, U. S. N. M. Trinidad (Montserrat, A. 

 Busck. 



Allied to A. panmnensis Distant, but with differently colored an- 

 tennae and legs, and shorter pronotum. Described from 4 males and 

 1 female. 



Family HENICOCEPHALIDAE. 



HENICOCEPHALUS COOKI, new apecies. 



Dull black, hemelytra and pectus brownish black, abdomen dark 

 testaceous; fourth and apex of third antennal joint, base of heme- 

 lytra, trochanters, knees, and apex of tibiae whitish. Head shortly 

 pilose, vertex (female) between the small eyes more than three times 

 broader than an eye; postocular part subglobose, slightly broader 

 than long and as broad as the width across the eyes, with a very fine 

 impressed median line; first antennal joint scarcely passing apex of 

 head, second joint as long as anteocular part of head together with 

 the eyes, third joint one- fourth shorter than second and a little 

 longer than fourth. Pronotum with extremely short pubescence; 

 fore lobe (collar) conspicuously longer in the middle than at the 

 sides, with a very slight median impression; middle lobe twice the 



