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Pheidole tetricaHNS Forel

Pheidole tetricaHNS Forel 1913m: 226.

Types Mus. Hist. Nat. Geneve; Mus. Comp. Zool. Harvard.

Etymology L tetricaHNS, harsh, forbidding, allusion unknown.

diagnosis Similar in various traits to tarchon and victimaHNS, differing as follows.

Major: dorsal surface of head, except for frontal triangle and midclypeus, completely covered with carinulae; pronotum covered by "wraparound" carinulae that circle the dorsum to travel along the lower lateral margin; in dorsal-oblique view propodeum descends anteriorly to metanotal groove through a steep face; propodeal spine almost half as long as propodeal basal face and almost vertical to it; postpetiole from above bluntly spinose.

Minor: widely spaced carinulae cover almost all the dorsal surface of the head, including occiput; center of mesopleuron and center of side of propodeum with longitudinal carinulae; occiput broad, lacking nuchal collar.

Measurements (mm) Holotype major: HW 1.08, HL 1.10, SL 0.62, EL 0.16, PW 0.52.

Paratype minor: HW 0.52, HL 0.62, SL 0.64, EL 0.12, PW 0.40.

color Major: concolorous yellow with faint reddish tinge.

Minor: concolorous yellow.

Range Recorded from Santa Catarina and Sao Paulo, Brazil (Kempf 1972b):

Biology Unknown.

Figure Upper: syntype, major. Lower: syntype, minor. BRAZIL: Ibirama, Santa Catarina. Scale bars = 1 mm.