. Bulletin. Natural history; Natural history. 518 Illinois Natural History St-RVf:v Bulletin 29, Art. 4 White Pines State Park, July 13, 1944, Frison, Sanderson, white pine needles, 4 9, 2 d", 1 larva. Elaphrothrips flavipes (Hood) Idolothrips flavipes Hood (1908f:377). 9, d". Type-locality.—Not stated but holotype labeled Dubois, Illi- nois. Transferred to Elaphrothrips by Buffa (1909). Female (brachypterous).—Length distended over mm. General color dark brown. Antennal segments III, IV, basal three-fourths of V, basal half of VI, tibiae, and tarsi bright yellow. Head moderately
. Bulletin. Natural history; Natural history. 518 Illinois Natural History St-RVf:v Bulletin 29, Art. 4 White Pines State Park, July 13, 1944, Frison, Sanderson, white pine needles, 4 9, 2 d", 1 larva. Elaphrothrips flavipes (Hood) Idolothrips flavipes Hood (1908f:377). 9, d". Type-locality.—Not stated but holotype labeled Dubois, Illi- nois. Transferred to Elaphrothrips by Buffa (1909). Female (brachypterous).—Length distended over mm. General color dark brown. Antennal segments III, IV, basal three-fourths of V, basal half of VI, tibiae, and tarsi bright yellow. Head moderately long and broad. Fore ocellus overhanging bases of an- tennae. Cheeks bearing three or four pairs of fairly stout setae. Eyes pro- longed ventrally more than dorsally. Postocular setae long. Fore femora without inner warts. Fore tarsi each with a small tooth. Wing pads membranous, sometimes extending posteriorly to abdominal segment II. Abdominal tergite I with pelta as in Fig. 293. Wing-holding setae slight- ly reduced in size. Tube moderately long and slender. Female (macropterous).—Length distended over mm. Similar to brachypterous female except wings fully developed. Fore wings without basal brown streak, each with about 26 accessory fringe cilia. Male (brachypterous).- Length distended slightly less than mm. Similar in color and structure to bra- chypterous female except fore tarsal tooth larger and sometimes fore legs greatly enlarged. Elaphrothrips flavipes may be im- mediately recognized by the yellow color of the tibiae and the ventrally prolonged eyes. It occurs mostly in the southern half of our state in forest. Fig. 293—Elaphrothrips flavipes, pelta. debris or in low grasses and herbs at the edge of the forest. Illinois records. — Alexander County: Gale, November 18, 1959, Stannard, forest debris, 4 specimens; Olive Branch, March 15, 1960, Stan- nard, forest debris, 1 9,1 cf. Cham- paign County: Homer (Hood 1908); Urbana, October 30, 1933, Farrar,
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