8 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 125 
Mezira pusilla, new species 
FIGURE 7 
Fremaue.—Elongate ovate, with finely setigerous granulations 
bearing extremely short, curled hairs. 
Head almost as long as width across eyes (18.5:19). Anterior 
process constricted at base, dilated apically; genae forming two 
(1+1) large, rounded lobes in front of clypeus, reaching to three- 
fourths of antennal segment J. Antenniferous tubercles acute, strongly 
divergent. Eyes semiglobose, protruding. Postocular tubercles thin, 
acute, slightly produced beyond outer border of eyes. Infraocular 
carinae moderately high, crenulate. Vertex with a U-shaped row of 
granules. Antennae slender, one-and-a-half times as long as width of 
head (29.5:19); relative length of antennal segments I to IV: 8:5:9.5:7. 
Labium reaching to hind border of labial groove, latter closed 
posteriorly. 
Pronotum less than half as long as maximum width (16:36); fore- 
lobe narrower than hind lobe (29:36). Collar thin, slightly sinuate 
anteriorly. Anterolateral angles expanded and rounded, produced 
forward almost as far as collar. Lateral notch deep, forming a slightly 
obtuse angle. Lateral borders of hind lobe slightly convex, converging 
anteriorly. Hind border almost straight. Foredise with four (2+2) 
granulate ridges. Hind dise roughly granulate. 
Scutellum shorter than basal width (14:20); all borders carinate, 
apex cut out; lateral borders sinuate at apical half; median ridge 
cross shaped; disc roughly granulate. 
Hemelytra reaching to hind border of tergum VI; basolateral 
borders of corium straight, carinate; apical angle rounded; apical 
border convex, slightly sinuate interiorly. 
Abdomen longer than maximum width across segment V (60:41). 
Lateral borders slightly convex. Connexivum wide, slightly raised 
exteriorly; PE angles slightly protruding; PE VII rounded. Para- 
tergites large, rounded, reaching to middle of a moderately long 
segment IX, latter incised posteriorly. Spiracles II to VI ventral; VII 
sublateral, barely visible from above; VIII lateral and visible from 
above. 
Cotor.—Testaceous, partly ferrugineous; labium and tarsi yellow; 
membrane fuscous, white at base. 
MrasurEMEnNts.—Total length 4.4 mm; width of pronotum 1.24 
mm; width of abdomen 1.64 mm. 
Hoxrorypr.—Female, Cacao, Trece Aguas, Alta v. Paz, Guatemala, 
Barber and Schwarz, (USNM type 69615). 
Remarks.—WMezira pusilla is one of the smallest Mezira species 
known from the Neotropical Region, only Mezira nana (Champion) 
