154 MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



Plate XVI. 



Fig. 1. Lipura f lucifugus Pack., Wyandotte Cave. Einerton del. 



Fig. 2. Degeerla cavemarum Pack., from Little Wyandotte Cave. — c, collophore; 2g, antenna of an example from 

 Carter caves (Zwingle's) ; 26, elater or spring of a Little Wyandotte specimen; 2c, antenna of a Bradford 

 Cave specimen ; 2d, antenna of a Diamond Cave specimen ; 2e, elater of a Bradford Cave example ; 2/> 

 elater of a Diamond Cave example ; ^grj 2g', elater of an individual from Carter Caves (Zwingle's) ; 2a, end 

 of tarsus of leg of the second pair. 



Fig. 3. Lepidocyrlus atropurpureus Pack., from Diamond Cave. — 3a, end of one of the last pair of legs ; 36, end of 

 the elater. 



Fig. 4. Smynthurusferrugineus Pack., . 08 mm long, from Weyer's Cave. — 4a, antennae ; 46, end of one of the legs of the 

 third pair ; 4c, elater. 

 Figs. 2 to 4, and details, drawn by the author with the camera lucida. 



Plate XVII. 



Fig. 1. Campodea cookei Pack., enlarged. — la, head, upper side ; 16, the same, under side ; le, terminal joints of the 

 antennas, showing at (oL) the olfactory (?) area; Id, Id', antenna; If, if, If", one of the cercopods; Ig, 

 eud of the body, with a portion of a cercopod ; lh, end of the body ; li, spinulated setae on different parts 

 of the body. 



Fig. 2. Campodea staphylinus Westw. — Terminal joint of the antenna, showing the olfactory (?) area. 



Fig. 3. Hadenwcus subterraneus, Mammoth Cave. Fungus (/.) growing from the end of the body. Kingsley del. 



Fig. 4. Dorypteryx pallida Aaron. — Eight maxilla from above ; 4a, the same enlarged ; 46, end of a claw. Drawn by 

 Dr. Hagen. 

 All the figures, except 1, la, 16, 3, and 4, drawn by the author. 



Plate XVIII. 



Fig. 1. Anophthalmus telllcampfii Erichs. (Emerton del.) — "The figure is a poor one ; the antennas, head, and thorax, 



and on the elytra the characteristic pair of sensitive hairs is entirely omitted ; all other species have three 



sensitive hairs on each elytrum " (E. A. Schwarz in letter). 

 Fig. 2. Anophthalmus tenuis Horn 

 Fig. 3. Anophthalmus eremita Horn, Little Wyandotte Cave. — " A tolerably fair representation ; the last joint of the 



maxillary palpi should- be longer than the penultimate, and some indication of the elytral striae ought to be 



given " (Schwarz). 

 FiG. 4. Anophthalmus menetriesii Motsch. (Emerton del.) — " This is a fair representation, except that the antennas are 



altogether too heavy" (E. A. Schwarz). 

 Fig. 5. Anillus explanatus Horn, (copied from Horn). — The antennas darwn by lithographer too stout and the setae 



too coarse. 



Plate XIX. 



Fpg. 1. Anophthalmus ieUJcampfii Erichs., from Salt Cave. — Antenna; la', three olfactory setae and two tactile setaB from 

 the third segment from the end of the antenna ; 16, terminal joint of left antenna of example from Mam- 

 moth Cave ; lc, left maxilla of example from Salt Cave ; lc', end of left maxillary palpus ; lc", end of left 

 galea ; Id, labium of Salt Cave example ; le, end of a fore leg from a Mammoth Cave example. 



Fig. 2. Anophthalmus menetriesii Motsch., from Diamond Cave. — Antenna; 2a, terminal joinl ; 26, end of right maxil- 

 lary palpus ; 2c, end of left galea ; 2d, labial palpus ; 2e, end of a leg of the first pair. 



Fig. 3. Anophthalmus tenuis Horn, from Bradford's Cave. — Antenna; 3a, teiminal joint of the antenna; 3a', fourth 

 joint from the end, showing the arrangement of the olfactory setae ; 3a", four of the same in the middle of 

 the joint; 3a'", a number of olfactory setas crowded together on the middle of the terminal joint of the 

 antenna (they also occur in the same crowded condition on the penultimate joint, the third being much as 

 the fourth joint from the end, but the setae no more numerous) ; 36, end of maxillary palpus ; 3c, end of left 

 galea; 3d, a leg of the first pair ; 3e, end of the same, enlarged. 



Fig. 4. Adelops hirtus Tellkf. Antenna, much enlarged, showing the olfactory organs (ol.) on the last four joints; 4a, a 

 maxillary palpus. 

 All thefigures drawn by the author with the camera. 



Plate XX. 



Fig. 1. Anophthalmus pubescens Horn. Marx del. 



Fig. 2. Anophthalmus inter stitialis Hubbard. Marx del. 



Fig. 3. Anophthalmus tenuis Horn. Marx del. 



Fig. 4. Anophthalmus eremita Horn. Marx del. (The fine elytral striae not clearly brought out by the lithographer. ) 



Fig. 5. Anophthalmus pusio Horn. Marx del. 



