2 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 119 



well worked out in the first half of the century by various American 

 entomologists, particularly by Van Duzee, Parshley, and Usinger. 

 Parshley's (1921) key for the species of the genus Aradus Fabriciiis, 

 though now more than forty years old, is still the basic aid for identi- 

 fication of American species. Nevertheless, even today new species 

 ai'e being found. Three of them are described herewith. 



Genus Aradus Fabricius 



Aradus Fabricius, 1803, Systema rhyngotorum, p. 116. 

 Aradus saileri, new species 



Figure 1 



Male. —Elongate ovate, slightly widening backward; body finely 

 granulate. 



Head shorter than width across eyes (22:26); distance between 

 eyes shorter than length of the head (17:22). Anterior process 

 moderately long, slightly tapering anteriorly, tip rounded. Anten- 

 niferous tubercles short, robust, acute, parallel exteriorly, reaching 

 middle of antennal segment I. Eyes subpedunculate, kidney-shaped, 

 almost touching foreborder of pronotum. Lateral tooth of anten- 

 niferous tubercles absent. Preocular tubercles small, acute; post- 

 ocular small, slightly blm-red. Depressions of vertex deep, curved, 

 connected posteriorly. Antennae robust, less than twice as long as 

 length of head (40:22): antennal segment I cylindrical; II clavate; 

 III cylindrical, as thick as tip of II; IV ovate, thinner than III; 

 proportions of segments 6:15:11:8. Rostrum reaching foreborder 

 of mesosternum. 



Pronotum less than half as long as width across humeri (20:44). 

 Anterior border shghtly sinuate; anterolateral angles rounded; lateral 

 borders very finely crenulate, strongly convex, rounded at humeri, 

 very finely granulate, shghtly sinuate anteriorly. Inner carinae 

 strong, parallel, running from the foreborder to hindborder; middle 

 carinae much thinner and lower, restricted to posterior two-thirds 

 of disc, reaching hindborder; outer carinae blm-red. Disc densely, 

 finely granulate. 



ScuteUum much longer than width at base (27:19); lateral borders 

 shghtly convex, rounded, moderately raised. Apex narrowly rounded. 

 Prebasal elevation of disc small. Disc finely granulate. 



Hemelytra complete, distinctly wider than pronotum (50:44), apex 

 of membrane reaching expanded border of genital capsule. Corium 

 long, reaching hindborder of connexival segment V, its basolateral 

 border expanded and reflexed ; apical border convex exteriorly, sinuate 

 interiorly; veins raised, finely granulate. 



