( i:^^ ) 



In the Tring Museum : f. vancoiwerensis, 23 SS, C^ ? ?, some of them trans- 

 itions, from : Quincv, Calif., 5. vi. '97 (Watson) ; S. Utah, June ; Miles City, 

 Montana ; Gleuwood Springs, Colorado, June, 5700 ft. (Oslar) ; S. Colorado, May 

 and June ; Farmington, New BIcxico, June. 



f. albescens, 17 cJcJ from: California; Durango, Colorado, 6500 ft., July 

 (Oslar) ; Grand Junction, Colorado, July (Oslar) ; Fort Collins, Colorado, August ; 

 Farmington, N. Mexico, June. 



104. Hyloicus libocedrus (I'l. Xlll. f. 7, S). 



Sphhu- lihucchiis Edwards, rapillu i. p. U.5 (1881) (Prescott, Arizona). 



S. Hest-mbling r/ie?-sis, but even smaller than mnco'irerensis ; mesothoracic 

 tegula with a thin brown mesial line ; white or yellowish side-imtches of abdomen 

 bonlered all round with black. Legs as in r/iersis. Inner angle of forewing less 

 rounded than in any of the allied species. 



cJ. Tenth abdominal segment nearly as in vancoiicerensis ; the tergite shorter, 

 and the sternite much more deeply sinuate. Har],e (PI. XXXVIII. f. 10) essentially 

 as in mncoin-erensis, but the long process curved downward and recurved at end. 

 Penis-sheath (PI. XXVIII. f. 52) obli(iuely truncate, without the elongate slender 

 process of the allied species. 



? . Not seen. 



Early stages uukuown. 



Hab. Arizona and Texas, most likely more widely distributed in the Southern 

 States and Northern Mexico. 



(/. H. liboeedrKS libocedrus (PI. XIII. f. 7, i). 



Sphinx lihncalnis Edwards, I.e.; Smith, Trans. Amer. Eiii. So,: xv. p. 183 (1888); Edw., £«//. 

 Amci: .Uus. X. U. iv. p. 170 (1892) (Prescott, Arizona) ; Kirby, Cat. Lep. Ret. i. p. 691. n. 4. 

 (1892) (Arizona). 



$. Side-spots of abdomen white. 



Hab. Arizona, near Prescott. 



In the Tring Museum \\$S from Arizona. 



b. II. libocedrus insolita. 



Sphinx inmlita Eintner, Papilio iv. p. 145 (1884) (Rio Grande, Texas, 1 t?) ; Edw., Enl. Amer. 



iii. p. 223 (18K8) ; Smith, I.e. p. 186 (1888) ; Kirby, Oil. Lep. II,l. i. p. 691. n. 5 (1892). 

 Sphinx Uliocedriis, Smith, I.e. p. 184 (1888) (partim, ? ; Belfrage coll.). 



(J ? . Side-spots of the abdomen yellowish in both sexes. The long process of 

 the harpe a little more curved than in lib. libocedrus. 



Hab. Texas. 



In the Tring Musenm 1 S without locality. In the Berlin Museum 1 S from 

 Texas. 



lu.j. Hyloicus perelegans (PL XIII. f. 1.2, Si). 



Sphinx pcreleijiim Edwards, Prue. Calif. Ac. N. Sei. v. p. 1(19 (1874) (Gilroy, St. Clara, Calif.). 

 UiUneria ? jiierelei/ang.Vutlev, Trans. Zool. Soc. Lnml. ix. p. 621. n. 2 (1877) (Gilroy, St. Clara, Calif.). 



(? ? . Anterior tibia and tarsus with heavy spines ; long apical spur of hind- 

 tibia not half the length of the first tarsal segment ; this much longer than the 



