NO. 3548 ARADIDAE — KORMILEV 3 



Abdomen longer than width across segment VI; connexiviim wide, 

 finely granulate; postero-exterior angles II to V not protruding, VI 

 slightly protruding, VII produced backward, rounded apically. 



Color. — ^Black; posterior borders of connexiva, inner borders of 

 expanded genital lobes, and tips of femora, white or whitish; remainder 

 of femora and the tibiae dark brown. 



Measurements. — Total length 5.0 mm.; width of pronotum 1.76 

 mm.; width of abdomen 2.24 mm. 



HoLOTYPE. — Male, Riverside Tanana R., Alaska, Lindroth collec- 

 tor, June 29, 1958. Bears label: "Aradiis n.sp. nr duzeei det. R.I. 

 Sailer" (USNM type 67580). 



It is a pleasure to dedicate this species to Dr. Reece I. Sailer who 

 first identified it as a new species. 



Aradus saileri, new species, is related to A. montanus Bergroth but 

 differs from it by the following characteristics: head is much shorter 

 than its width across eyes; antenniferous tubercles without lateral 

 tooth; connexivum bicolored; and size much smaller. 



Aradus ovatus, new species 



Figures 2, 3 



Female. — ^Brachypterous; ovate, regularly tapering forward, less so 

 backward ; densely and finely granulate. 



Head as long as width across eyes (25:25.5); distance between eyes 

 longer than length of antennal segment II (17:12). Anterior process 

 long, parallel-sided, reaching basal fourth of antennal segment II. 

 Antenniferous tubercles conical, acute, directed a Httle downward; 

 outer borders parallel, without tooth. Preocular tubercles rather 

 obsolete, postocular absent; depressions of vertex shallow, wide, not 

 connected posteriorly. Eyes globose, very prominent, but not 

 stalked. Antennae short, less than one and a half times as long as 

 head, (32:25), slightly narrower than fore-femora (4:5); antennal seg- 

 ment I ovate, II clavate, III tapering toward base, IV obovate; 

 proportions of segments 5:12:8:7. Rostrum short, reaching front 

 coxae. 



Pronotum one-third as long as width across humeri (14:41). Ante- 

 rior border deeply sinuate, finely crenulate; anterior angles rounded; 

 lateral borders finely crenulate, sUghtly reflexed, straight and con- 

 vergent anteriorly, arcuate posteriorly; hindborder deeply sinuate. 

 Disc rather flat, densely granulate; inner carinae thin, finely granulate, 

 slightly convergent backward; middle and outer carinae obsolete. 



Scutellum triangular, sUghtly longer than width at base (20:18); 

 lateral borders very shghtly reflexed at apical half; apex narrowly 

 rounded; disc uneven, densely granulate, shghtly depressed at two- 

 fifths its length and before tip. 



