426 ftEPORT OF STATE GEOLOGIST. 



128. NEMonius EXIGUUS Blatcliley. 



Nemohius exif/ims Bl., 5, 1S92, l.-JH; Id., 17, IX, 1900, 53. 



Size, medium; body, slender; head rather kirge, but slightly tumid. 

 Kyes small but prominent. Antenna?, head, pronotum and femora 

 broAvnish yellow. Maxillary ])alpi light yellow throughout or with 

 the apical third of terminal joint infuseated. Tegmina of male 

 reaching- tip of abdomen; the dorsal field expanded so that they ex- 

 tend beyond the sides of abdomen; brownish yellow in color with a 

 narrow piceous bar on upper third, of lateral field and with basal 

 third of dorsal Held often more or less pitch black. Tegmina of 

 female covering onc-lialf or more of abdomen, the dorsal field usually 

 heavily shaded with blackish; wings absent in both sexes. Upper 

 surface of abdomen blackish, lower surface brownish yellow or lute- 

 ous. Ovipositor a third or more shorter than hind femora, distinctly 

 arcuate, the apical blade not enlarged at the base, anned above with 

 very small and rather dull teeth, which are irregularly distant one 

 from another. 



Measurements: Length of body, nuile, 1 mm., of female, 7.5 mm.; 

 of tegmina, male, 5 mm., of female, t mm.; of hind femora, male, 

 5.2 mm., of female, (k'A mm.; of ovipositor, 3.5 mm. 



This is the "iV. exiguus Scudder" of my paper on the "Gryllidas 

 of Indiana," loc. cit. It appears, however, that Scudder had not 

 described a species as cxignvs but had merely inentioned a form of 

 N. fasciaius under the name. Beutenmuller afterwards* described 

 N. a/fin i.s from New York, which he stated was the insect mentioned 

 by me, but which, according to Scudder, f is N. carolinus. 



Exiguus is longer and proportionally more slender than the next 

 species, N. earolxnus Scudd.. though the tegmina of the male are 

 broader. The j)ronoium and femora are not mottled or marked with 

 fuscous as in that species. The serrations of the ovipositor of caro- 

 linus are smaller,'sharper and more evenly separated than in exiguus. 

 The latter species occurs in all parts of the State and is fully one- 

 half as common as the short wingctl form of N. fasciaius. Its habits, 

 time of appearance and local habitat are also essentially the same. 

 However, the smaller size, short ovipositor, yellowish maxillary 

 palpi, and other dilferences in color, readily distinguish it from that 

 insect. 



'' BuUetin Anicriciin Museum Niituriil History. VI, ISli-l, i))i 250. •It'u. Plnte \', Fig, II. 

 t.Tournal New York Kntoinolosical So<'ioty, I\', IS'.til, 107. 



