. Bulletin. Natural history; Natural history. 172 ILLINOIS NATURAL HISTORY SURVEY BULLETIN V^ol. 21, Art. 4 Genotype.—Goerita seviata new species (original designation). Goerita semata new species Male.—Length 6 mm. Body light brown; the membranous areas white; the dorsum of the abdomen purple; the first antennal segment and legs below coxae straw color; the wings uniformly light brown with light brown pu- bescence. General structure as given for genus. Genitalia as in fig. 113. Abdomen without ventral ornamentation. Ninth segment very narrow dorsally, forming across the meson a thin, scleroti


. Bulletin. Natural history; Natural history. 172 ILLINOIS NATURAL HISTORY SURVEY BULLETIN V^ol. 21, Art. 4 Genotype.—Goerita seviata new species (original designation). Goerita semata new species Male.—Length 6 mm. Body light brown; the membranous areas white; the dorsum of the abdomen purple; the first antennal segment and legs below coxae straw color; the wings uniformly light brown with light brown pu- bescence. General structure as given for genus. Genitalia as in fig. 113. Abdomen without ventral ornamentation. Ninth segment very narrow dorsally, forming across the meson a thin, sclerotized bridge. Tenth tergite formed of a pair of fairly wide lateral plates, practically touching on meson, wide and arcuate at base, the apical half with sides sub- parallel, the apex divided into two rounded lobes, the lateral lobe slightly overlapping the mesal lobe; the entire structure with only scattered long setae clustered chiefly at apex and along meson. Claspers, viewed from above, with basal segment swollen at apex and apical segment swollen at base. Seen from the lateral view, the basal segment appears almost rectangular; it appears slightly concave when viewed ventrally. It is incised at the apex to form a hollow bearing the apical segment, which is constricted just beyond base to form an apical, sausagelike portion having on its ventral surface a row of rounded, fat, peglike setae. Oedagus tubular, with an apical fringe of very fine setae; in pre- pared specimens there protrudes from the apex a large, membranous fold and within the oedagus can be seen two stout spines. Female.—Similar in size, color and general structure to male, except for antigeny. Maxillary palpi longer than width of front between eyes. Eighth sternite crescentic; ninth forming a con- cave sinuate pad fitting within the cres- cent. For purposes of diagnosis the shape of the head is most important. Holotype, male.—Newfound Gap, North Carolina: June 13, 19,55, H. H. Ross. Allotype, female.


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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory