. The cave fauna of North America, with remarks on the anatomy of the brain and origin of the blind species. Cave animals; Caves. MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 81 are sometimes confluent; the finer pubescence on very minute dark spots, an often faint brown stripe in the middle and a still less distinct one on each side; humeral callosities reddish, the flat scutellum likewise. Pleurae pale brown- ish-gray, darker below. Abdomen grayish-pollinose, the ground color being blackish; male hypopygium yellow, with delicate black pile; tip of the female abdomen also yellowish; hind marg
. The cave fauna of North America, with remarks on the anatomy of the brain and origin of the blind species. Cave animals; Caves. MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 81 are sometimes confluent; the finer pubescence on very minute dark spots, an often faint brown stripe in the middle and a still less distinct one on each side; humeral callosities reddish, the flat scutellum likewise. Pleurae pale brown- ish-gray, darker below. Abdomen grayish-pollinose, the ground color being blackish; male hypopygium yellow, with delicate black pile; tip of the female abdomen also yellowish; hind margins of segments pale. Halterea whitish. Wings with a brownish-yellow tinge; bristles on the costa of moderate length; posterior cross-vein rather near the tip of the fifth vein, the last section of that vein being less than half of the cross- vein. Legs reddish-brown or brown ; knees and base of middle femora paler. Habitat.—Hundred Dome Cave, near Glasgow, Kentucky (F. G. Sanborn); a male and two females. The specimens, having been kept in alcohol, were very much injured. The species is related to B. cine- raria Lw. (syn. armipcs Lw.), but is easily distinguished by the ab- sence of the peculiar armature on the hind femora of the male, the much darker legs, larger size, etc. The anterior frontal bristles of B, cineraria are much shorter, but the pair above them much larger than in B. dcfcssa. In one of my specimens (the male), the tibiae are some- what yellowish in the middle; the frontal bristles were observed on the female, as they had disappeared from the male specimen. Blepharopterae are often found in caves, where they are said to breed in the excrement of bats. This species also occurred in Mammoth Cave, Wyandotte Cave (Packard), and numerous smaller caves, i. e. FlG. 18.—Blepharoptera defessa Osten Saoken. Zwingle's Cave (one of the Carter caves), September 17, 20 rods from the entrance; Gray Town Cave, Curtin caves, Little Lithographic Cave, near Glasgow Junction;
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Keywords: ., bookauthorpackarda, bookcentury1800, bookdecade1880, bookyear1888
