wo. 1124. JiE VISIOX OF THE MKI.A Sni't I—SCCDhKH. 31) I 



I know <)!* but ii Hiiigle species, whicli inhabits tbe Pacifn* cojist from 

 Canada to Mexico, and which assumes tliree forms accordiiijj to the 

 length of the organs of tiight, that with the organs fully developed 

 being thus far known only from southern California, from the hea<l of 

 the San Joa(}uin Vallej' to San Diego. It is distinguished from the 

 others not oidy by the development of these organs, but by i slightly 

 slenderer body, the grossness of the others seeming' to be correlated 

 witb their incapacity of tiight. 



OEDALEONOTUS ENIGMA. 



(Plate XXVI. fiK8. 4-45.) 



McIanophiH coUaria ScrDi>»'!Rl, Can. Knt., XII (18S«»), p. 7.'). 

 Melanoplunjlaroainnilatus ImrNFi:, Iu«. Life, III (1h;k>), p. 140. 

 Pezotettix eiiiflitui BuuxEU, IJull. Div. Ent. U. S. Dep. Agric, XXVIII (181>3), 

 pp. 33-a4, fig. 17. 



OEDALEONOTUS ENIGMA COLLARIS. 



(Plat.' XXVI, tig. »;.) 



Melanophia collaris Scudder!, Proc. Host. Soc. Nat. Hist., XIX (1878), p. 2«6; 



Ent. Notes, VI (IS7S). p. 4.'>.— liurxKU. He» U. S. Ent. Comin., lit (1KS:{), p. 60. 

 Caloptenua jiavoUneatua Bruxer (nee TuoM , Bull. Div. Ent. U. 8. Dep. Agric, 



XXVIlI(18y3), p.:«. 



OEDALEONOTUS ENL. -^ tjomA. 



(Plate XXVI, fig. 5.) 



Pezotettix enigma Sci'ddeuI, Ann. Hep. Chief Eng., lH7t> (1H76), p. 505; Ann. Rep. 

 Geol. Sun. l<K)th Mer., 1S7H (1H76), p. 2So; Proc. Boot. Soc. Nat. Hist., XIX 

 (18«8), p. 2S7 ; Ent. Notes, VI (lH7s), p. 46.— Bruner, Kep. I'. S. Ent. Comm., 

 Ill (lHS3j, p. .-»!>; Can. Eni., XVII (1885), p. 15; Bull. Div. Ent. U. 8. Dep. 

 Agric, XXVII (1892), p. 29. 



OEDALEONOTUS ENIGMA JUCUNDUS. 



(Plate XXVI, fig. 4.) 



Pesoieitir Jucundus Scudder!, Ann. Kep. Chief Eng., 1876(1876), p. .")05; Ann. 

 Rep. Geol. Surv. 100th Mer., 1876 (1876), p. 285.— Bruner, Rep. U. S. Ent. 

 Coram., Ill (1883), p. 59. 



Body yellowish testaceous marked with brownish fuscous. Head 

 above, behind the narrowest i)art of the vertex, marked with an 

 elo'igated, expanding, blackish fuscous stripe, through the middle of 

 which runs a yellow line, and by a supraorbital arcuate band of a simi- 

 lar color, usually broken, often obsolete, and terminating just below 

 a narrow short yellow stripe behind the upper iiart of the eye; space 

 between the eyes rather narrower than the frontal costa, the fastigiuni 

 broadening considerably in front of the eyes and broadly sulcata 

 throughout; frontal costa broad and nearly efjual, broadest just above 

 the ocellus, rather sparsely punctate, and at the ocellus very shallowly 

 sulcate, often nearly imperceptible. Prouotum short and raiher stout, 



