. Insects . le gonopods in the two typical females has a distincttooth on the inner side toward the distal end but none on the outer, being thusbipartite instead of essentially entire as in integer or tripartite as in sierravagus. In the types from Forrester island a median dorsal black stripe is distinctlymarked from the caudal end of the fourteenth plate cephalad to the frontalsuture of the head. These specimens in whole or in part show a distinct reddishor chestnut cast. The specimens from Sitka (males presumably of this sub-species) lack the reddish tinge, the colour being a dull, nearly u
. Insects . le gonopods in the two typical females has a distincttooth on the inner side toward the distal end but none on the outer, being thusbipartite instead of essentially entire as in integer or tripartite as in sierravagus. In the types from Forrester island a median dorsal black stripe is distinctlymarked from the caudal end of the fourteenth plate cephalad to the frontalsuture of the head. These specimens in whole or in part show a distinct reddishor chestnut cast. The specimens from Sitka (males presumably of this sub-species) lack the reddish tinge, the colour being a dull, nearly uniform, duskyolive brown. Dorsal spines of first legs in Sitka specimens 0, 0, 2, 2, 1. Dorsal spines ofsecond legs in specimens from both localities may be 0, 0, 3, 2, 1 or 0, 0, 3, 2, 2. Length of maximum female, 23 mm. Localities: Alaska, Forrester island (Ronald and Prof. H. Heath); andSitka. 22 H Canadian Arctic Expedition, 1913-18 Plate collected by the Canadian Arctic Expedition, Explanation of Plate IV. Fig. 1. Cryophilus alaskanus Chamberlin, ventral view of caudal end. 2. Cryophilus alaskanus Chamberlin, dorsal view of head and prehensors. 3. Cryophilus alaskanus Chamberlin, ventral view of prehensors. 4. Cryophilus alaskanus Chamberlin, maxiUa;. 5. Cryophilus alaskanus Chamberlin, clypeal area. REPORT OF THE CANADIAN ARCTIC EXPEDITION 1913-18 VOLUME III: INSECTS PART I: LEPIDOPTERA By ARTHUR GIBSON
Size: 1277px × 1957px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookidinsects00can, bookyear1919
