. Bulletin. Natural history; Natural history. 272 Illinois Natural History Suh\t:y Bulletin Vol. 31, Art. 7 Bittacus apicalis Hagen Bittacus apicalis Hagen (1861:248). <J, 9 . Type-locality: Southern Illinois. Haplodictyus incertus Navas (1926:59). S . Type-locality: VVilmerding, Penn- sylvania. Synonymized by Carpenter (1932fo). Head and thorax pale glossy yellow to brown. Wings (Fig. 22) pale yellow, ptero- stigma and apex of wing dark brown. Subcostal crossvein basal to first fork of radial sector. One pterostigmal cross- vein. Apical crossvein absent. Legs pale yellow to brown. Hind fem
. Bulletin. Natural history; Natural history. 272 Illinois Natural History Suh\t:y Bulletin Vol. 31, Art. 7 Bittacus apicalis Hagen Bittacus apicalis Hagen (1861:248). <J, 9 . Type-locality: Southern Illinois. Haplodictyus incertus Navas (1926:59). S . Type-locality: VVilmerding, Penn- sylvania. Synonymized by Carpenter (1932fo). Head and thorax pale glossy yellow to brown. Wings (Fig. 22) pale yellow, ptero- stigma and apex of wing dark brown. Subcostal crossvein basal to first fork of radial sector. One pterostigmal cross- vein. Apical crossvein absent. Legs pale yellow to brown. Hind femora slightly enlarged. Abdomen and terminalia pale yellow to brown, occasionally eighth tergum of males dark brown to black. In males, lobes of ninth tergum in lateral view (Fig. 29) extend slightly beyond apices of basistyles, dorsal margin with medial prominence; in dorsal view (Fig. .30) lobes diverge apically, curve ventrally, apex with 30 or more black spines. Basistyles broad, thick. Dististyles short, tapered apically. Aedeagus thick at base, tapered apically to slender coiled thread. Cerci short, slender, do not extend beyond middle of basistyles. The dark brown apices of the wings readily separate this species from all other Nearctic bittacids. When B. api- calis hangs from vegetation, the wings are extended laterally from the body (Fig. 8) rather than being folded over the abdomen. In Illinois B. apicalis was collected on jewelweed and stinging wood nettle in moist, shaded, bottomlands along streams. Very seldom were specimens collected on the drier hillsides. This species extends from North Car- olina to New York and west to Illinois, Missouri, and Oklahoma (Fig. 43). Illinois Records.—(Fig. 43). Col- lected from early May to mid-August in south and central Illinois. The north- western limit of distribution of B. api- calis is in Illinois. No specimens are. Fig. 43.—Distribution of Bittacus apicalis in Illinois and North America. recorded from northern Illinois,
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
