. Descriptions of some weevils reared from cotton in Peru. Cotton Diseases and pests; Beetles. 6 KEPOET 102^ U. S. DEPAETMEA^T OF AGEICULTUEE. The old genus Bruchus erected by Linnaeus in 1767 (not Geoffroy, 1762) is a synonym of Mylabris Geoffroy, 1762, and of Laria Scopoli, 1763; hence the family name Mylabridse for the older names Bru- chidse and Lariidse. There is no justification for clinging to a name because it has been used a long time when that name is not only pre- occupied but also twice superseded by valid names for the same type species. As long as our rules of nomenclature exclud
. Descriptions of some weevils reared from cotton in Peru. Cotton Diseases and pests; Beetles. 6 KEPOET 102^ U. S. DEPAETMEA^T OF AGEICULTUEE. The old genus Bruchus erected by Linnaeus in 1767 (not Geoffroy, 1762) is a synonym of Mylabris Geoffroy, 1762, and of Laria Scopoli, 1763; hence the family name Mylabridse for the older names Bru- chidse and Lariidse. There is no justification for clinging to a name because it has been used a long time when that name is not only pre- occupied but also twice superseded by valid names for the same type species. As long as our rules of nomenclature exclude homonyms and synonyms we have no right to use a name thrice ruled out; hence the more or less unfortunate readjustment of family names. The old genus Bruchus is rapidly % # and rightly being broken up into smaller and more coherent genera and there will ultimately not be many species requiring the name Mylabris. Mylabris peruanus, new species. (Text figs. 1 and 2.) Described from one female specimen from Piura, Peru, said by Mr. Townsend to have come from cotton squares and bearing his number 25009. The present species is a member of the sec- ond stirps, first manipulus, sec- ond part, in Schonherr's (1833) treatment of the genus Bruchus and comes nearest in general characters to leguminarius Gyllenhal of Chile, differing also from testvdinarius Erichson, the only species in the group described from Peru. It appears to belong in Sharp's sixth group of Bruchus. Length, mm; breadth, mm. Integument piceous black, with much of the elytra and edges of pygidium reddish piceous and the labrum, palpi, antennae (except toward apex where they are darker), legs, and sides of abdomen reddish yellow. Pubescence above ochraceous; with brownish spots on each elytron near base, apex, and middle of side, and median striae brownish; yellowish pubescence in spots at base and apex of thorax on median line, on each side of disk on thorax before middle, at posterior angles of thorax, scu-
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