E. O. Wilson.
The Status of the Ant Genus Microbolbos Donisthorpe.
Psyche 62:136, 1955.

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136 Psyche [September
Paratrechina (Nylanderia,) troglodytes Weber, 1934, Rev. Ent., Rio de Janeiro, 4: 58, fig. 7a, b, worker. Type loc. : near Casa Harvard, Soledad, Cienfuegos, Cuba. New
synonymy.
In addition to specimens collected at or near the two type localities by P. J. Darlington and E. 0. Wilson, Dar- lington took a series at the Sierra de Cobre, from 3000- 3800 feet altitude, Oriente Prov., Cuba, showing that the species is both widespread and ecologically adaptable with- in the limits Cuba offers. -'By WILLIAM L. BROWN, JR., Museum of Comparative Zoology.
THE STATUS OF THE ANT GENUS MICROBOLBOS DONIS- THORPE. -During a recent visit to the British Museum (Natural History) I was able to examine the holotype of the enigmatic species Microbolbos testaceus Donisthorpe, described from the Gold Coast (1948, Entomologist, 81 : 170-171) ). Microbolbos was found to be a junior synonym of Leptogenys Roger 1861 (s. I.) (new synonymy). Donis- thorpe's testaceus may stand as a valid species, however, distinguished from other Leptogenys by the following com- bination of characters: (1) hind claws with small, well separated teeth instead of combs, (2) mandibles with 3 distinct teeth including the apical, (3) body size extremely small, only about that of a large Ponera, (4) body surf ace heavily shagreened, completely opaque,
(5) color dark yel-
lowish brown, (6) body covered with abundant, short, erect hairs. The absence of combs on the tarsal claws, or at least their reduction to separated teeth, forms an ex- ception to what is the principal diagnostic character of the Leptogenyini, but actually the African species Leptogenys arnoldi Forel and L. castanea Mayr show the same condi- tion, and the character grades through between the two extremes in the genus. Possession of mandibular teeth additional to the apical tooth is also unusual, but is shared with L. myops Emery and members of the L. processionalis group. - E. 0. WILSON, Biological Laboratories, Harvard University.
Pswht 62:1->6 I1955), http //psyche enkliib qJ62J62.136 him1



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