Annual report of the Board of Control of the New York Agricultural Experiment Station . s species from eggs of nigricornis in raspberry and have thelarval and pupal stages. 8. Idris sp. Webster, Ins. Life, 3: 345. 1891. Recorded from eggs of niveus (probably nigricornis) in raspberry canes. An adult of Polynema bifasciatipenne (Fig. 27) was found on Sep-tember 17, 1910, running about a portion of a raspberry cane in whicheggs of nigricornis had been deposited. On September 26 a smalllarva which was a little over 1 mm. long was found attached toan egg of this species of cricket taken from the s
Annual report of the Board of Control of the New York Agricultural Experiment Station . s species from eggs of nigricornis in raspberry and have thelarval and pupal stages. 8. Idris sp. Webster, Ins. Life, 3: 345. 1891. Recorded from eggs of niveus (probably nigricornis) in raspberry canes. An adult of Polynema bifasciatipenne (Fig. 27) was found on Sep-tember 17, 1910, running about a portion of a raspberry cane in whicheggs of nigricornis had been deposited. On September 26 a smalllarva which was a little over 1 mm. long was found attached toan egg of this species of cricket taken from the same planting. Itwas thought that this was a larva of Polynema but we were unableto rear the insect to the adult stage. In 1912, from a box containing raspberry canes with eggs ofnigricornis, an adult bifasciatipenne emerged on August 24, anotheron September 3, and a third specimen on September 4. The adultsare slender insects about 2 mm. long, with long legs and peduncledabdomen. The color is yellowish brown. The fore wings are broad 462 Report of the Department of Entomology of the. Fig. 27. Adult Female of Poiynema , Antenna of male. and have a narrow dark band near the base, a broad one acrossthe middle, and a broad one near the tip. The hind wings areextremely antennae ofthe female areabout half thelength of body andare 9-jointed, thelast joint beingthe largest. Theantennae of themale are filiform,longer than thebody and are 13-jointed. (Fig. 27,a.) A number ofeggs of nigricorniswere examined onJuly 22, 1912, andsome of them which remained unhatched contained larvae of a parasite which proved to be Cacusacanthi. The larvae were about fullgrown and measured mm. inlength by .5 mm. in diameter. (, a.) The body is made up of elevensegments, each of which, except thelast, has two rounded protuberanceson each side, while segments 2 to 7inclusive have a pair of small butprominent protuberances on the dorsalside. The margins of the segmentsare
Size: 1776px × 1407px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectagriculture, bookyear
