. Memoirs of the American Entomological Society . 131 126^*^ * 130. Figures 125-134. — Figs. 125-127. /. marmorata. 125. whole ova detail of crown 1000 X. 127. detail of chorion and micropyle 2000 X: /. fulva. 128. detail of chorion with proteinaceous bodies 1000X. ova 200 X. 130. detail of collar 1000X. 131. light micrograph of whole ovawith enveloping gelatinous membrane 80 X. 132. light micrograph — detail of collarand enveloping gelatinous membrane 800 X. 133. light micrograph — detail of gela- S. W. SZCZYTKO & K. W. STEWART 67 May until late July in Oak C
. Memoirs of the American Entomological Society . 131 126^*^ * 130. Figures 125-134. — Figs. 125-127. /. marmorata. 125. whole ova detail of crown 1000 X. 127. detail of chorion and micropyle 2000 X: /. fulva. 128. detail of chorion with proteinaceous bodies 1000X. ova 200 X. 130. detail of collar 1000X. 131. light micrograph of whole ovawith enveloping gelatinous membrane 80 X. 132. light micrograph — detail of collarand enveloping gelatinous membrane 800 X. 133. light micrograph — detail of gela- S. W. SZCZYTKO & K. W. STEWART 67 May until late July in Oak Crk., Benton Co., Oregon. Material examinedin this study emerged from early Apr. until mid-Jun., beginning in south-ern latitudes and lower altitudes. This is apparently a rare species and no studies have been done on itslife history or general biology. Isoperla fulva Claassen Isoperla fulva, Claassen, 1937, 69:80. Holotype S, and allotype 5; Logan R.,Cache Co., Utah, USA (CU #1,687), (adult head and pronotum, male andfemale genitalia). Isoperla chrysann
Size: 1660px × 1506px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubje, booksubjectentomology
