. Annual report of the Commissioner of Agriculture ... Agriculture -- New York (State). and have a narrow dark band near the base, a broad one across the middle, and a broad one near the tip. The hind wings are extremely narrow. The antennae of the female are about half the length of body and are 9-jointed, the last joint being the largest. The antennae of the male are filiform, longer than the body and are 13- jointed. (Fig. 27, a.) A number of eggs of nigricornis „,„,„ avaminaA ™ Fig. 27.—Adult Female of Polynema bifascialipcnne. Were examined on A Antenna of male. July 22, 1912, and some of
. Annual report of the Commissioner of Agriculture ... Agriculture -- New York (State). and have a narrow dark band near the base, a broad one across the middle, and a broad one near the tip. The hind wings are extremely narrow. The antennae of the female are about half the length of body and are 9-jointed, the last joint being the largest. The antennae of the male are filiform, longer than the body and are 13- jointed. (Fig. 27, a.) A number of eggs of nigricornis „,„,„ avaminaA ™ Fig. 27.—Adult Female of Polynema bifascialipcnne. Were examined on A Antenna of male. July 22, 1912, and some of them which remained unhatched contained larvae of a parasite which proved to be Cacus acanthi. The larvae were about full grown and measured mm. in length by .5 mm. in diameter. (Fig. 28, a.) The body is made up of eleven segments, each of which, except the last, has two rounded protuberances on each side, while segments 2 to 7 inclusive have a pair of small but prominent protuberances on the dorsal side. The margins of the segments are elevated, especially on the sides of the body. The color is generally a translucent white, but segments 2 to A B 6 inclusive appear yellowish, due Fig. 28.— Cacus acanthi: a, larva; apparently to some internal organ. The pupae were formed near the end of July. (Fig. 28, b.) They were white at first but later turned black and had ail the characters of the adult. On September 5,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original New York (State). Dept. of Agriculture; New York State Agricultural Experiment Station; Cornell University. Agricultural Experiment Station. Albany : State of New York, Dept. of Agriculture
Size: 923px × 2708px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthornewyorkstateagricultu, bookcentury1800, bookdecade1890
