( 450 ) 



]l(tl). I'tu'.ilic district oi' Xciirctic IJegioii, fmiu Britisli Columbia to Arizona. 



Ill the Triug Musemii : — 



f. thetis,'~Z 66, '•' ? ? from: I'rcscott, Arizoua, vi. vii. (Dr. Kuu/.e; ; Copper 

 Basin, vii., TOOd ft., and .lorome, vi., ToUU ft., Arizoua (J. K. Oslar) ; Tasaiiena, 

 Calif ; Gold Hill, Oregon (Biedermann) ; South Utah, vii. 



f. vynoi/lossum in the British Jlnseuiu and coll. W. Schaus. 



378. Haemorrhagia brucei. 



llemarin lirnrci French, Caiuul. Eiil. x.vii. p. 133. (18110) (Colorado) ; Kirby, Oil. Lrji. IIcl. i. ]i. (VjIT. 

 n. 29 (18112) ; Skinner, Ent. A'eio- xi. p. 380 (I'.KMt) (Wasatch Mts., Utah, common at high 

 altitudes). 



S ?. Very near //. (Ujlinis .sen fa, but more shaggy ; legs nearly, and underside 

 of abdomen entirely, grey. Not structurally different. 



Il(tlj. Central district at high altitudes : Colorado : Utah. 



In the Tring Musemu :,'2 66, 10 ?? from: South Utah, vi. ; Silver Lake, 

 Utah, vii. ; llio de los Binos, Colorado, v. ; South Bark, Col., 10,000 ft., vi. viii. 

 (Oslar) ; Chimney (iulch, Col., SOOO ft., v. (Oslar) ; Blatte Canon, Col., NOOO ft., 

 v. (Oslar). 



As this insect occurs together with //. (///finis scnta, and is always distinguish- 

 able, we consider it distinct iu spite of the absence of structural differences. 



37 It. Haemorrhagia tityus. 



Siiliiiix tityus Linne, Si/sl. Xcl. ed. x. p. 4',i3. n. 2 (1758) ; Aiiriv., Kumjl. Sr. Vrl. Ak. ILimll. xix. fi. 

 p. 170 (1882). 



As /iwifonnh is undoubtedly the correct name for the broad-bordered 

 Balaeurctic sjjecies we do not see any objection against the employment of the name 

 titi/iis for the narrow-bordered one'. Linue's description applies equally well to all 

 the clear-winged sjiecies ; the unpublished descrijition referred to by Aurivillius, I.e., 

 fits the insect figured by Esper as homhijUfoniiis. As Linne treated, in 1707, titijus 

 as a variety oi faciformis, we may safely assume that he knew indeed both the 

 broad border and the narrow border, but was not couviuced of their specific 

 distinctness. 



The name of hombi/lifoniiix, ajiplied by Esper and others to the present species, 

 and misapplied by Illiger and most Continental Lepidopterists to J'ucifoniiis, cannot 

 stand for tiie narrow border, for the character " alnJomiiie cocciiieo," and the fact 

 that Linne treated bomb>/liformis in 1707 as a variety oi porceUns, speak decidedly 

 against the type of boinbi/li/ormi'^ having been the narrow border, while the 

 character " uno barbato "' does not fit porcellu.'s ; " alls kyalinis lateo cari/.s " might 

 apply to a fresh sjiecimea of JJacmorr/tiif/ia that has not lost the scales, but also to 

 a strongly rubbed jjorcellu-f. 



The names titi/ii.s for the narrow border, i\,nt\ j''(cij'ormi.s I'.ir the broad border, 

 are easily remembered if we keep iu mind ihaX, fncifonni.-f fe.diug on (tuH/hu, and 

 /iti///.'^ on Srabiosa, the initials of the insect and these food-plants are neighbours in 

 tlie aljihabet, and further, that titi/us is teitidter uianjinatK-s (has a thin border), and 

 ihaX fuciformis is '■'■ fortitc.r^'' marijinutaa. 



6 ? . Hook of antenna shorter than in fuciformis and the allied sjiecies, third 

 and fourth segment (counted from end) broader. Cell of fore wing without scaled 

 fold, llindtibia black at end. Border of forewing sometimes slightly dentate. 



c^. Tenth segment as \n J'uriformiis. Claspers different (PI. LL f 20) ; left 



