AUG-7 1958 1 CATALOGUE OF SNELLEN'S TYPES OF PYRALIDAE, WITH SELECTIONS OF LECTOTYPES') BY EUGENE MUNROE Senior Entomologist, Insect Systematics and Biological Control Unit, Entomology Division, Ottawa, Canada A. DIAKONOFF Rijksmuseum van Natuurlijke Historie, Leiden, Netherlands AND EDWARD L. MARTIN Geological Survey, London, England (Formerly with Entomology Dept., British Museum, Natural History) History of the Project The history and apportionment of work of this paper is as follows: During the summer of 1953 Munroe spent some days in the Rijksmuseum van Natuur-lijke Historie, Leiden, Netherlands, examining the type material of Snellen's Pyralid species preserved there. Most of the types were checked against original descriptions; holotypes were labelled; lectotypes were chosen from series of syntypes where suitable material was present, and were labelled. It was found impossible in the time available to study every series or to check the work with the necessary care; at a later date, therefore, Munroe prepared a catalogue of Snellen names, and memoranda of series examined and labels affixed at Leiden. This was forwarded to Diakonoff, who checked both catalogue and Leiden collections, independently re-examining every item, and making a number of changes and additions that were necessary in the original work. Meanwhile, in the course of work at the Zoological Museum, Tring, Munroe had discovered and identified a number of types and syntypes of species described by Snellen from the Elwes collection. These were segregated and transferred to the British Museum. At the same time as the draft catalogue of Snellen Pyraiidae was sent to Diakonoff, a list of species and type material described in Snellen's 1890 paper on the Elwes collection was sent to Martin. Martin labelled the types previously found, made two searches of the Rothschild Bequest material in the British Museum and at Tring, and located a number of additional types. These results were communicated to Diakonoff, who correlated them with additional type material originally retained by Snellen from the Elwes collection. All findings and modifications were transmitted to Munroe, who drafted the ^) Contribution No. 3629, Entomology Division, Science Service, Department of Agricul-ture, Ottawa, Canada. 65
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