J.D. Anderson 1958 Journal June 20 Valencia Lagoon, Rio del Mar, Santa Cruz Co., Calif. Nymphs of Belostoma but very large. Fewer all being large adults. These seem most abundant where there are no Emblestoma but I did not keep close records. As many as 4 Belostoma in 1 haul of net. Corixids & Notonectids are more numerous than ever before. Cochotoceras present but down in numbers. Snail, as usual, are most numerous invertebrate. Saw pair of geese & pair of Mallards. After going for the 3 new larvae I began a systematic check of newly dried areas to attempt to find any newly metamorphosed Emblestoma. Checked under mats of Polygonum at SE corner of pond, worked under all Willows along N edge of pond, Polygonum & logs at NW end and shore at west & finally litter along edge. Took about 1/2 hrs. but found no sign of Emblestoma. Lost my Schultheis Thermometer on this search. Retraced steps & found it is next to last stop. While walking thru shrub's Eleocharis & grass at former SW corner of pond I noticed the area was a maze of Micratus runways. I've never seen so many. actually saw 4 or 5 Micratus running about & heard many more. Found 1 drowned Micratus in Can trap # 2 night in oak woods. A real high population here. Ate lunch 12:15-12:45. Then over to Ellicott Pond to get larvae for