. Bulletin. Natural history; Natural history. Fig. 415.—Macronemum zebratum larva, head. Fig. 416.—Macronemum Carolina larva, head. Fig. 417.—Macronemum traiisdersiim larva, head. Tubercles near eye smaller, fig. 415 . zebratum, p. 115 Adults 1. Wings pale yellow with narrow, trans- verse brown stripes transversum, p. 117 Wings brown with large yellow spots and stripes, fig. 420 2. Fig. 418.—Macronemum zebratum, head. Fig. 419.—Macronemum Carolina, head. 2. Eyes small, malar space large, fig. 418 zebratum, p. 115 Eyes large, malar space narrow, fig. 419 Carolina, p. 116 Macronemum zebratum (Ha
. Bulletin. Natural history; Natural history. Fig. 415.—Macronemum zebratum larva, head. Fig. 416.—Macronemum Carolina larva, head. Fig. 417.—Macronemum traiisdersiim larva, head. Tubercles near eye smaller, fig. 415 . zebratum, p. 115 Adults 1. Wings pale yellow with narrow, trans- verse brown stripes transversum, p. 117 Wings brown with large yellow spots and stripes, fig. 420 2. Fig. 418.—Macronemum zebratum, head. Fig. 419.—Macronemum Carolina, head. 2. Eyes small, malar space large, fig. 418 zebratum, p. 115 Eyes large, malar space narrow, fig. 419 Carolina, p. 116 Macronemum zebratum (Hagen) Macronema zebratum Hagen (1861, p. 285); &, 9. Larva.—Fig. 415. Length 22 mm. Head, thoracic sclerites and legs reddish brown. Head with a sharp, U-shaped ridge sur- rounding a flat area embracing almost all the dorsal portion of the head, this ridge elevated into a distinct tubercle above each eye. Mandibles with base very large and apex narrow, fig. 288. Front legs with a heavy brush on the tibiae. Adults.—Fig. 420. Length 15-18 mm. Color of head and thorax metallic bluish brown; antennae dark brown at base, grad- ually becoming lighter toward apex; mouth- parts and legs yellow. Front wings brown with yellow markings forming a pattern as in fig. 420. Eyes small, fig. 418, malar space large. Male genitalia with parts simple, fig. 421. In Illinois we have taken this species at many localities in the northern half of the state, particularly along the Fox, Kankakee, Rock and Mississippi rivers. We have taken the larvae and pupae very abundantly in the rapids of the Kankakee River. Adult emergence begins during the latter part of May and continues into September. During. 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 Illinois. Natural History Survey Division. Urbana, State of Illinois, D
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