N. W. Gillham.
Brephidium barbouri Clench a Synonym of Brephidium exilis isophthalma (Herrich-Schaffer) (Lepidoptera: Lycaenidae).
Psyche 62(1):34, 1955.

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34 Psyche [March
acuminata, and the forewing spots mi, ma and m4 of the new species are shorter. From quadripunctata the new species differs in having all wing spots better developed. BREPHIDIUM BARBOURI CLENCH A SYNONYM OF BREPHIDIUM EXILIS ISOPHTHALMA (HERRICH-SCHAFFER) (LEPIDOPTERA : LYCAENIDAE) .
Lycae'na isophthalma herr rich-Schaffer, 1862, Corresp.- Blatt. zoo1.-min. Ver. Regensburg, 16:141, sex not stated. Type locality: Cuba.
Brephidiunz barbowi Clench, "1942" [I9431 Psyche, 49:58, two males. Type locality: Great Inagua Island, Bahamas. NEW SYNONYMY.
An examination of the holotype and paratype males of Brephidium barbouri reveals that they are identical with isophthalma for the following reasons. In the first place, microscopic examination of the anal angle of the forewing fringe reveals that the white patch supposedly differ- entiating isophthalm from the dark fringed barbouri can be present in all intergradient degrees. One specimen of isophthalma examined had a well defined white patch on one wing and practically none on the other. Secondly, barbouri is supposedly darker both above and below than isophthalma. This appears to be the case if one compares the types of barbouri with the Nassau specimens of isoph- thalma in the Museum of Comparative Zoology, and ap- parently this is what Clench did. However, the Nassau specimens were collected in 1897, while the types of bar- bouri were collected in 1934. Therefore it seems quite likely that the difference in color is merely due to fading. Lastly, my comparison of the genitalia of the types of barbouri with those of isovhthalma failed to reveal any differences in structure. - NICHOLAS W. GILLHAM, Harvard Univer- sity, Cambridge.




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