22 PROCEEDINGS OP THE AMERICAN ACADEMY. 



HADENCECUS Scudder. 



Hadencecus Scudd., Bost. Journ. Nat. Hist., vii. 439-440 (1862) ; 

 Brunn., Monogr. Steuop., 66 (1888). 



Table of the Species of Hadencecus. 



Body pale testaceous. Ovipositor nearly or quite as long as the 

 body. Subgenital plate of $ broadly emarginate at apex. 



cavernarum. 



Body dark brown. Ovipositor only half as long as the body. Sub- 

 genital plate of Z narrovv^ly emarginate at apex . . puteanus. 



Haden(ecus cavernarum. 



Phalangopsis sp. Thomj^s., Ann. Mag. Nat. Hist., xiii. 113 (1844). 



Rhapidophora cavernarum Sauss., Ann. Soc. Entom. France (4), i. 

 492 (1860). 



Hadencecus cavernarum Scudd.!, Proc. Bost. Soc. Nat. Hist., xii. 

 409 (1869); xix. 38 (1877) ; Boliv. , Ann. Soc. Ent. France (5), x. 

 72 (1880) ; Riley, Stand. Nat. Hist., ii. 184, fig. 260 (1884) ; Comst., 

 Intr. Ent., 114 (1888); Blatchl., Proc. Ind. Acad. Sc, 1892, 153. 



Rhapidophora subterranea Scudd.!, Proc. Bost. Soc. Nat. Hist., viii. 

 8 (1861); Pack., Amer. Nat., v. 745, fig. 126 (1871) ; Cope, Ibid., 

 vi. 409 (1872); Hubb., Amer. Ent., iii. 37 (1880). 



Hadencecus subterraneus Scudd.!, Bost. Journ. Nat. Hist., vii. 441 

 (1862) ; Walk., Catal. Derm. Salt. Brit. Mus., i. 201 (1869) ; Pack., 

 Guide Ins., 565 (1869) ; Glover, 111. N. A. Ent., Orth., pi. 8, fig. 6 

 (1872) ; Cope-Pack., Amer. Nat., xv. 882 (1881) ; Brunn., Monogr. 

 Stenop., 66, fig. 34 (1888); Pack., Mem. Nat. Acad. Sc. iv. 67-70, 

 83,116, fig. 16, pi. 17, fig. 3 (1888) ; Id., Psyche, v. 198-199 (1889); 

 Garm., Ibid., vi. 105, fig. (1891). 



Early notices of this insect by Telkampf will be found in Muller's 

 Arch. Anat. Phys., 1844, 318, and Wiedemann's Arch. Naturg., 1844, 

 384 ; also by Schiodte in K. Danske Vid. Selsk. Skrift. 1849, 5 ; by 

 Agassiz in Silliman's Amer. Journ. Sc, 1851, 127; and by Lesque- 

 reux in the Actes Soc. Helv. Sc. Nat., 40 Sess., 52-53 (1855). 



I have studied specimens only from the Mammoth Cave, Ky. It 

 is also reported by Packard from many other caves in the Mammoth 

 Cave region, as Dixon's, White's, Salt, Ice, Diamond, Grand Avenue, 

 Poynter's, Wetzel's, Haunted, and Emerson Spring Branch caves; 

 besides Mail Robbers', One Hundred Dome, Walnut Hill Spring, 



