. The large larch sawfly (Nematus erichsonii) [microform] : with an account of its parasites, other natural enemies and means of control. Insect pests; Tenthrède du mélèze; Larch; Insectes nuisibles, Lutte contre les; Larch sawfly; Mélèze. 35 mined for me by Mr. Claude Morley. Handlirsch recordH the rearing of this species from the neuropteron Hemerobixis nerowtua Fabr. The living larvK measured alx>ut 3 mm. in length. FiffHes sp. Two specimens were reared in 1910 from material from Cumberland, Eng. These insects are usually parasitic upon diptera. They may have been para- sitic on tachinid
. The large larch sawfly (Nematus erichsonii) [microform] : with an account of its parasites, other natural enemies and means of control. Insect pests; Tenthrède du mélèze; Larch; Insectes nuisibles, Lutte contre les; Larch sawfly; Mélèze. 35 mined for me by Mr. Claude Morley. Handlirsch recordH the rearing of this species from the neuropteron Hemerobixis nerowtua Fabr. The living larvK measured alx>ut 3 mm. in length. FiffHes sp. Two specimens were reared in 1910 from material from Cumberland, Eng. These insects are usually parasitic upon diptera. They may have been para- sitic on tachinid para-sites or upon .some unnoticed dipterous pupse. Microplitis sp. A single female braconid referred to this genus by Mr. Claude Morley was reared from English cocoons (Cumberland) on May 10, 1911. PREDACEOUS INSECT. Hemiptera: Penlatomidct. Podisua modeslus Dallas. This predaceous or blood-sucking bug has been frequently found feeding upon the larvse of N. erichsonii. Fletcher found it in 1884 destroying the sawfly larvae at Brome, Que. Lintner (1889) records it as a predaceous enemy of N. erichsonii. He found it in July feeding oi. the sawfly larvae and remarks that: "In fastening upon its prey, in almost every instance observed its probosis was inserted near the anal end of th? ; Packard says: " We also noted several bugs, a species of Podims, near the common spinosus, preying upon the fully grown worms; it ascends the tree and pierces the worm with its beak, carrying it down the tree and sucking its blood, rendering it ; The species was no doubt P. modestus which closely resembles the common P. maculivenlris Say (formerly P. spinosus Dall.). F;o "^l—Pmlaceoua Uuk: I'uditut modetliu Dall. P. modeslus (Fig. 21) is common throughout Canada and the north-eastern United States. The collections of the Division of Entomology contain specimens from Quebec, Ontario, Manitoba and British Columbia; Van Duzee .states that it occurs as fa
Size: 1380px × 1811px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectp, bookyear1912
