. The fossil insects of North America, with notes on some European species [microform]. Insects, Fossil; Insects; Insectes fossiles; Insectes. Jl DH'TKHA—TII'ULIIMO. 569 An obli(iuo Huponmmomry vein runs to tlio center of tlio stigniu from a point in the first loiifrituilinal vein directly ubovo the orif,nn of the third; thrt is, from the inner edge of the stifriuu. 'i'ho outer and ])08torior margins of the wing are profusely fringed with very delicate hairs, longor than tile thickness of the stout costal vein, The antenna; are fonrteen- jointed, about twice as long as the head, the basal join
. The fossil insects of North America, with notes on some European species [microform]. Insects, Fossil; Insects; Insectes fossiles; Insectes. Jl DH'TKHA—TII'ULIIMO. 569 An obli(iuo Huponmmomry vein runs to tlio center of tlio stigniu from a point in the first loiifrituilinal vein directly ubovo the orif,nn of the third; thrt is, from the inner edge of the stifriuu. 'i'ho outer and ])08torior margins of the wing are profusely fringed with very delicate hairs, longor than tile thickness of the stout costal vein, The antenna; are fonrteen- jointed, about twice as long as the head, the basal joints of iiio llagellnm subglobular, the others obovato, the apical one more than twice as long as broad; they are delicately verticillate, the hairs being but half as long as the width of the joints. The male anal lobes are broadly obovate, deeply and abruptly excised externally at the base, so as to leave a sharp right angle outwardly and a narrow peduncle on the inner side. Together the lobes are broader than the tip of the abdomen, and each is about half as long again as broad. Length of body, including the lobes, ™"'; antennas, ;""; wings, ;"" ; anal lobes of male, ()./)5'"™. Fossil Canon, VVhite River, Utah (W. Denton.) A second specimen of what is apparently the aame species, judging from the anal lobes, is somev/hat stouter, but is destitute of all other append- ages, excepting indeterminate fragments of the rostrum, so that no further knowledge of the specios can be gained from it. Tho rostrum, however, would seem to bo scarcely longer than the head. Chagrin Valley, White River, Colorado (W. Denton ) In another specimen, alt>o a male, the body, one of the wings, and part of the legs of one side are preserved; the whole is much fainter than in the other specimens, but the auxiliary vein can be traced midway between tho costal and first longitudinal veins throughout nearly its whole length. What is apparently tho ros
Size: 1255px × 1992px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublishe, booksubjectinsects
