MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 73 



Though it is impossible to state if these cave Psocina belong to Dorypteryx, it is at least prob- 

 able. I have before me only the imago of Dorypteryx, ami the cave Psociua are all nymphce. The 

 narrow wing-cases are oval, only a little longer than the thorax, and in younger specimens much 

 shorter; all show a little wing still in the cases. The color of the specimens is ivory white, a little 

 yellowish (four obscure spots ou occiput) on the head; the eyes are in the hind corner of the head, 

 large, dark facets, in some convex (as in Clothilla); no ocelli; antennae (only in one seven basal 

 joints are preseut) long, thin; the two basal joints thicker, shorter, the following slender, cylin- 

 drical, long; maxillae trifid at tip; the most external division longest, cut straight at tip, but its 

 inner angle bent upward, so that the tip looks pointed ; the middle tooth shorter, narrower, 

 somewhat ovoid; the third or inner tooth more distant, short, strong, bent outwards. The man- 

 dibles are large, ending in a sharp incurved tip, with a tooth before it ; the base of both mandibles 

 show a strong molar tooth with transverse incisures ; the three segments of the thorax narrow, 

 separated; feet very long and slender; tibiae much longer than the femur; tarsi three-jointed; 

 basal joint long, the following ones short, of equal length; claws short, nearly straight; tip sharp, 

 before it one inferior tooth ; in some, at least certainly in one fore-leg, three internal teeth are to 

 be seen (with a high power); there are no arolia between the claws; abdomen longer, more 

 rounded, and ovoid in the apical half. 



The principal difference between the cave specimens would be the wanting of the long mar- 

 ginal hairs of the wiugs; but these are only described for the imago, and I have not seen nymphce 

 (of Aaron) of Dorypteryx. Of the two specimens found by Mr. Hubbard (I. c, p. 84), I have only 

 one before me, and I believe I have returned the other (I think the crushed one is of another lot). 

 The specimen before me has three black very faint ocelli, and the eyes more developed as regards 

 the facets; but the wings are real nymphai wings, and not, as I have stated (apparently form the 

 returned specimen) fastened only to the external corner of the thorax. Otherwise the specimen 

 is perfectly similar to those collected by Professor Packard. Indeed all the wings are more like 

 those of the short-winged individuals of Tertnes. I should state that I am not yet sure that 

 Dorypteryx and the cave Psocus belong to the Atropina, where the trifid maxilla would place it, 

 the more so as the fossil Empheria has similar maxillae. An additional objection is the fact that 

 all the cave specimens lose the setae of the antennae in alcohol, whereas Atropina mostly retain 

 the set®, especially Hyperetes. The fact that among Atropina occasionally appear ocelli, as also 

 in Clothilla (p. 305 Mon. Atrop.), explains their presence in the cave insects. I believe that more 

 material alone would give more security as to the position in the system of these cave insects. 



The following list of cave Coleoptera and remarks, with localities, were kindly prepared for rne 

 by the late Dr. J. L. Le Conte, and they are printed just as he wrote them. I have added copies 

 of the original descriptions and remarks. 



CAVE COLEOPTERA RECEIVED FROM DR. PACKARD. 

 Plates XVIII, XIX, and XX. 



I.— TEUE SUBTERRANEAN SPECIES. 



Anophthalmus Sturm. 



[* Maxillary palpi with last joint shorter.] 



1. A. tettkampfii Er., Mull. Arch., 1844, 384. 



Mammoth Cave; Walnut Spring Cave, 100 yards from daylight; Long Cave, 1 mile in; cave 

 under G-ardeuer's Knob; Little Lithographic Cave, No. 2 (Engine Cave); Diamond Cave; Salt 

 Cave; Poynter's Cave; White's Cave, near Mammoth Cave; Grand Avenue Cave, 70 feet deep, 

 below Proctor's, Glasgow Junction; Proctor's Cave; Sugar Bowl Cave; small caves near Glasgow 

 Junction. 



[** Maxillary palpi with the last joint longer.] 



2. A. menetriesii, Motsch. Etudes Entom., 1862, 41 ; angulatus Lee., New Spec., 1863, 18. 



Walnut Hill Spring Cave, Glasgow Junction, 50 feet in, collected by daylight; Walnut Hill 

 Spring Cave, Glasgow Junction, 100 yards from daylight; Little Lithographic Cave, No. 2; Poyn- 



