NO. 3651 ARADIDAE V—KORMILEV 9 
being smaller. In my key (1962, p. 260) for American Mezira species, 
it runs to M. angustata (Champion) but is much smaller, genae are ex- 
panded and rounded, apical border of corium more convex, para- 
tergites and segment IX are relatively longer. 
Mezira equatoriana, new species 
Fremaue.—In general aspect similar to Mezia pacifica Usinger but 
differing from it by: Head longer than width across eyes; anterior 
process shorter, reaching three-fifths of antennal segment I. Eyes 
relatively large, semiglobose. Postucular tubercles smaller, blunt, 
adherent to eyes, not reaching outer border of latter; antennal seg- 
ment III moderately longer than II (15:12), much longer in M. 
pacifica (17.5:10). Pronotum more sinuate laterally; interior ridges of 
forelobe less raised. Scutellum relatively shorter, wider at base. 
Apical border of corium almost straight (sinuate interiorly and con- 
vex exteriorly in M. pacifica). Paratergites with posterior border 
convex exteriorly and straight interiorly, reaching as far as a short 
segment IX; latter truncate posteriorly. All spiracles ventral. 
Cotor.—Brown; membrane black; antennae and legs lighter, red 
brown; labium and tarsi yellow brown. 
MEASUREMENTS.—Head longer than width across eyes (30:27.5) ; 
relative length of antennal segments I to IV: 15:12:15:15. Pronotum 
less than half as long as wide (26:66); forelobe narrower than hind 
lobe (52:66). Scutellum shorter than basal width (25:41). Abdomen 
longer than maximum width across segment IV (92:87). 
Total length 7.08 mm; width of pronotum 2.64 mm; width of ab- 
domen 3.48 mm. 
Ho.otyre.—Female, Esmeralda, south of Mateo, Ecuador, J. 
Foerster, 5.X.1956, deposited in the collection of the author. 
Mezira sanmartini, new species 
Frma.e.—Elongate ovate, roughly but sparcely granulate; granules 
with distinct, yellow, curled hairs. 
Head distinctly shorter than width across eyes (21:26). Anterior 
process dilated anteriorly, rounded and incised in front, reaching 
three-fourths of antennal segment I. Antenniferous tubercles wide, 
acute, crenulate outside and slightly divaricating. Eyes large, semi- 
globose, protruding. Postocular tubercles clawlike, acute, produced 
slightly beyond outer border of eyes. Infraocular carinae high, cren- 
ulate. Vertex with a V-shaped, rough, setigerous granulation. An- 
tennae moderately strong; relative length of antennal segments 
I to IV: 10:6:—:— (two apical segments missing). Labium reaching 
to hind border of labial groove, latter closed posteriorly. 
