PROC. ENTOMOL. SOC. WASH. 89(2), 1987, pp. 275-283 NEOTROPICAL TINEIDAE, IV: THREE NEW ACROLOPHUS SPECIES FROM CUBA AND THE REDISCOVERY OF ACROLOPHUS NIVEIPUNCTATUS WALSINGHAM (LEPIDOPTERA) Donald R. Davis Department of Entomology, National Museum of Natural History, Smithsonian Insti-tution, Washington, D.C. 20560. Abstract. — Examination of a small collection of Acrolophus in the collections of the Instituto de Zoologia in Havana, Cuba, has revealed the presence of three new species {A. fuscisignatus, A. guttatus, and A. basistriatus) and the first specimens collected of .4. niveipunctatus Walsingham since 1891. All species are fully described and illustrated. In 1980, the Academia de Ciencias de Cuba and Smithsonian Institution signed an agreement designed to promote cooperative research in the natural sciences. A vital part of this agreement encourages an exchange of scholars between our two countries. In February 1981, I was privileged to be one of the first entomologists to participate in this program. Although February was certainly not the most opportune season for Lepidoptera, a respectable sample of specimens, including 28 species of Tineidae, was collected at five sites in western Cuba over an 1 1 day period. The purpose of this brief account is not to report upon what is hoped to be only the first of several trips to Cuba, but instead upon a small but interesting series oi Ac-rolophus found in the collections of the In-stituto de Zoologia in Havana. Most of the specimens were collected by Pastor Alayo and associates; all but one species were pre-viously undescribed; and none was encoun-tered during my brief excursion. Only five species of Acrolophus have been described from Cuba (Davis, 1984). Be-cause the unique holotypes of four of these {A. dimidiella Wlsm., A. niveipunctatus Wlsm., A. noctuina Wlsm., A. vitellus Poey) are now lost, their identities have been un-clear. Fortunately, one of the four species found in the collections of the Instituto de Zoologia has been determined as conspe-cific with A. niveipunctatus. At present, these represent the only examples of this species collected in nearly a century, which merely indicates again how poorly known the Cu-ban microlepidoptera are. It is further in-teresting to note that all of the species treat-ed herein, with the exception of A. fuscisignatus, new species, are members of the North American plumifrontellus group. This group, which was previously known to contain only A. plumifrontellus Clemens (Hasbrouck, 1964), is characterized pri-marily by the bifid apex of the male valva. Institutional acronyms referred to in this paper are: IZAC for Instituto de Zoologia, Academia de Ciencias de Cuba, Havana; and USNM for National Museum of Nat-ural History (formerly United States Na-tional Museum), Smithsonian Institution, Washington, D.C, USA. Acrolophus fuscisignatus Davis, New Species Figs. 1-3, 7-10, 23 Adult (Figs. 1-3). — Length of forewing: S, 10.0-14.5 mm; 9 15-17 mm. A relatively large species with strongly recurved labial
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