. Bulletin. Natural history; Natural history. March 1938 ROSS; NEARCTIC CADDIS FLIES 137 M much reduced. Tibial spur count 2- 4-4, the front tibia without a preapical spur. Genotype.—Ccmotina calcea new species (original designation). This genus differs from previously described genera of the Polycentropinae in lacking the preapical spur of the front tibia and in having a narrow condition of the hind wing; from hitherto de- scribed genera of the Psychomiinae it differs in the lobate second segment of the maxillary palpus. Cernotina calcea new species Male.—Length 5 mm. Head, body and appendage
. Bulletin. Natural history; Natural history. March 1938 ROSS; NEARCTIC CADDIS FLIES 137 M much reduced. Tibial spur count 2- 4-4, the front tibia without a preapical spur. Genotype.—Ccmotina calcea new species (original designation). This genus differs from previously described genera of the Polycentropinae in lacking the preapical spur of the front tibia and in having a narrow condition of the hind wing; from hitherto de- scribed genera of the Psychomiinae it differs in the lobate second segment of the maxillary palpus. Cernotina calcea new species Male.—Length 5 mm. Head, body and appendages straw color; the wings, tibiae and tarsi darkened with brown hairs; the abdomen purplish above. General characteristics as described above for genus. Genitalia as in fig. 59. Tenth tergite bifid at apex, the two processes long, narrow and pointed, covered with thin setae. Cerci consist of a wide, somewhat bulbous base, a long, slender apical process and three large, heavy, pointed spines set one above the other on the mesal side. Claspers extend as far as the cerci, the apex circularly incised, the mesal side produced into a thin, ver- tical plate, the pair almost touching on the meson. Oedagus tubular, apparently opening between the mesal angles ot the dorsal appendages. Female.—Length 6 mm. Color and. <3 Genitalia general structure similar to those ot male. Genitalic segments forming a conical structure with no apparent tie- velopment of diagnostic parts. Holotype, male.— Kankakee, Illinois: July 21, 1935, along Kankakee River, Ross & Mohr. Allotype, female.—Kankakee, Illinois: Aug. 1, , along Kankakee River, Ross & Mohr. Paratypes.— Illinois.—Oakwood: July 18, 1933, along Salt Fork River, Ross & Mohr, 1 cf. Oklahoma.—Turner Falls State Park: June 2, 1937, along Honey Creek, H. H. Ross, 36cf. Cernotina Oklahoma new species This species differs from calcea in the short cerci without mesal armature, fig. 60. Maxillary Palpus '. Please note
Size: 1608px × 1555px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
