How were the distribution maps for crickets and katydids made?
Short answer: Mostly from records originally entered manually in twelve notebooks. More detailed answer: From 1958 until 1998, TJW and helpers entered data on geographical and seasonal distribution onto sheets in twelve 2-inch looseleaf notebooks. For each species separate sheets were used to enter records based on Specimens Examined [in museums or in the field], Song Records [tape recording or listening], and Notes and Literature [records from personal communications or the published literature]. Each record on these sheets occupied one line, with fields for Specimens [number, sex(es), stage(s)], State, County, Locality, Date [with TJW’s field-notes number, if any, added in parentheses], and Source [collection, person, or author/year/page]. The records for each species were analyzed to give, for each county in which the species occurred, a rank in this hierarchy: Specimen and Associated Song [specimen tape recorded or heard, and collected], Specimen and Song but not Associated, Specim
