W. L. Brown, Jr.
Nylanderia myops (Mann), New Combination (Hymenoptera: Formicidae).
Psyche 62:135, 1955.

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Fig. 1. Reconsmiction of fore wing of Ta-rsophlcbwpsifi wi Till. (Tilly~rdiaa notation employed).
by Tiltyard. The supposed fragment of "the basal posterior margin of a hindwing" fits into the area posterior to the anal vein in the right fore wing. After making these cor- rections, I have been able to reconstruct a complete fore wing.
NYLANBERIA MYOPS (MANN) , NEW COMBINATION (HYMEN- OPTERA: FORMICIDAE). - The small-eyed Cuban Prenolepis of Mann is placed in NylundeTWi to follow the modern classification of these groups. Weber has described a species troglodytes, also from Cuba, supposing it to differ from myops "in distinctly larger size and in the shape of the petiole." Direct comparison of three syntypes of each of these forms now in the Museum of Comparative Zoology shows a slight average size difference, but an absolute over- lap exists even in this minute sample. Mann's cited meas- urements are too low, and could not have been made from a stretched-out specimen. Head and petiole shapes in these delicate specimens vary widely, due to warping and buck- ling upon drying out of the alcohol. Weber apparently refers to such differences, although these are not clearly seen in the types before me. Formal synonymy follows, PrenoIepis myops Mann, 1920, Bull. Amex. Mus. Nat. Hist., 42: 432, worker, female, male. Type loc.: Mina Carlota, Sierra Trinidad.




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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. 1.) (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 surface 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 Fore1 and L. castanea Mayr show the same condi- tion, and the character grades through between the two extremes in the genus. Pqossession 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.




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