EE REPORTED TO WORK 6/4/00 WITH LUMP ON SHOULDER. CLAIMED HAD BEEN STUNG BY WASP 3 DAYS PREVIOUSLY; LATER CLAIMED IT BY SPIDER, LATER HORSEFLY - WHILE SITTING AT DESK IN OFFICE TRAILER. NO WIT NESS AND NOT REPORTED TO FOREMAN AT THE TIME. SENT TO ER 6/4/00.