NO. 3657 ANEURUS—KORMILEV 5 
Head shorter than width across eyes (11.5:13). Anterior process 
conical; jugae slightly shorter than clypeus, their tips still visible 
from above; tip rounded, reaching to apical fourth of antennal seg- 
ment I. Antenniferous tubercles short, acute, divergent. Eyes large, 
semiglobose, protruding. Postocular tubercles strong, dentiform, 
acute, with minuscule serrations on the foreborder. Vertex trans- 
versely rugose, with two (1+1) large, ovate callosities mesad of eyes. 
Antennae moderately robust, twice as long as head (21.5:11.5); 
antennal segment I obovate, thick; II obovate, but half as thick as I; 
III and IV subcylindrical, very slightly tapering toward the base. 
Relative lengths of antennal segments I to IV: 4:4:4.5:9. Labium 
short, reaching line connecting hind borders of eyes. 
Pronotum less than half as long as maximum width (12.5:27.5). 
Collar very thin, feebly sinuate in front. Anterior borders truncate; 
anterolateral angles angularly rounded, produced neither forward, 
nor sideways; lateral borders of forelobe straight, convergent; laterai 
borders of hind lobe slightly convex; both finely, but distinctly serrate. 
Hind border sinuate in the middle, convex laterally. Foredise with 
four (2+2) low callosities; hind disc densely punctured and trans- 
versely striate along posterior border laterally. 
Scutellum semicircular, shorter than basal width (12.5:18); disc 
concentrically rugose. 
Hemelytra reaching slightly over foreborder of tergum VII; corium 
very short, reaching basal one-fourth of scutellum; membrane densely 
and deeply punctured. 
Abdomen elongate ovate, longer than maximum width across 
segment IV. Connexivum moderately wide; connexiva III to V twice 
as long as wide; exterior borders slightly raised, densely granulate; 
mesad of granulation obliquely rugose around callosities. Tergum VIIT 
roughly, obliquely rugose. Paratergites very short, serrate, reaching 
middle of segment IX; latter subtruncate, slightly sinuate in the 
middle of posterior border. Spiracles II and V to VII lateral and 
visible from above, III and IV ventral and placed far from border, 
VIII terminal. 
Cotor.—Reddish brown; membrane darker, with pale, opaque, 
basolateral border. 
MeasurEMENTs.—Total length 3.70 mm, width of pronotum 
1.10 mm, width of abdomen 1.40 mm. 
Ho.ioryre.— ¢, Puerto Rico, Aibonito BF, Medina coll., VI.1961 
(USNM type 69795). 
Remarks.—Aneurus aibonitensis, new species, is related to A. fisket 
Heidemann, 1904, but is smaller, narrower, and with different position 
of spiracles. 
286—-783—68——2 
