. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. Fig. 23.—JBracon {Me- lanobracon) webbi: Dorsum of second ab- dominal segment. Greatly enlarged. (Original.) Fig. 24.—Bra con (Melanobraron) webbi: First four antermal joints. Greatly enlarged. (Original.) Fig. 22.—The pine sawyer: Emergence holes of young adults in bark, a, Natural size of emergence holes. (Original.) BRACON (mELANOBRACON) WEBBI N. Compared with ulmicola b this species differs as follows: Second dorsal abdominal segment without a triangular elevated area but with shallow, almost oblique im-
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. Fig. 23.—JBracon {Me- lanobracon) webbi: Dorsum of second ab- dominal segment. Greatly enlarged. (Original.) Fig. 24.—Bra con (Melanobraron) webbi: First four antermal joints. Greatly enlarged. (Original.) Fig. 22.—The pine sawyer: Emergence holes of young adults in bark, a, Natural size of emergence holes. (Original.) BRACON (mELANOBRACON) WEBBI N. Compared with ulmicola b this species differs as follows: Second dorsal abdominal segment without a triangular elevated area but with shallow, almost oblique im- pressions as diagrammatically represented in figure 23. Female: Length, 11™°\ exclusive of ovi- positor, which is 6™™; antennae 69-jointed; proportions and relation of first four joints approximately as in figure 24; joints 4 to 55subequal, becoming wider than long; joints 55 to 69 becoming longer than wide, the apical joint conical. Petiole of first discoidal cell about as long as second and third joints of antenna combined. Second dorsal abdominal segment perfectly smooth. Type.—No. 12585, U. S. National Museum. Type locality, Baxterville, Miss., March 19, 1909. Hopk. U. S. No. 5896a; reared by Mr. J. L. Webb, of the Bureau of Entomology. REMEDIES. Fire.—During the logging operations upon the storm-felled timber near Baxterville, Miss., in 1908, the felled timber was burned over with the object of destroying the broods of the sawyer. Sub- sequent examinations of this burned-over area disclosed the fact that a very small percentage of the larvjB had succumbed to the heat. This method is, therefore, not to he recommeTided. Scoring.—Several experiments were tried to determine the effi- ciency of "scoring," or removing a strip of bark along the upper surface of a log. In some instances salt was sprinkled along the a By H. L. Viereck, Agent and Expert, Bureau of Entomology. b l<)0(j, 'Vy-aw^. Am Ent. Soc, j)p. Please note that these image
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