( 140 ) 



h. H. dnipijeranim utahensis. 



Sphini iitdlienxis Edwards, PupHin i. p. llo (1.SS1) (Utah, coll. Neumoegen) ; Kiiby, CVi(. Lep. Bel. 



i. p. t;92. n. 20 (IS'Ju'). 

 Sphinx rmtroiirereiixix, Holland (iwii Edwards, 1874), Caiiait. Eiil. xviii. p. 103 (188(1) (rancnui:^ 



ilni/ii/. ex err.). 

 SjihiiLv tirvplfemritm var. nliiliensin, Smith, Trans, .inter. Ent. Soe. xv. p. 178 (1888). 



S ? . The western form, which is whiter than the ordinar}- eastern form. 

 Hab. t'olorado to Utah, California, Oregon, probably in all the western States. 

 In the Tring Museum 10 tJc?, 5 ? ? from : South Dakota; Colorado : Glenwood 

 springs, Colorado springs, and Durango (Oslar). 



112. Hyloicus ligustri. 



l^phinr liijiistri Linne, Si/st. Nat. ed. x. p. 490. n. 7 (1768). 



c??. Antenna one-third (c?) or less than one-third (?) the length of the 

 forewing, not obviously incrassate before the hook ; apical segments see PI. LX. f. 9. 

 Spines of foreleg not prolonged, first protarsal segment as long as segments 

 2 to 4 together ; mesotarsus without comb ; spurs without spines ; hindtibia 

 not sjjiny, long ajiical sjiur more than half the lengtli of the first tarsal segment, 

 this longer than the four other segments together ; paronychium with long 

 slender lobes. The black autemedian band of the hindwing is either isolated, 

 or is more or less merged together with the discal band ; in the latter case 

 the discal band has a more proximal ])Osition tlian in the former. Extreme 

 individuals of the second form are called ab. spiraeae ; this is neither local nor 

 is it produced only by such caterpillars as feed on Spiraea. In this ab. spiraeae, 

 as well as in individuals with separate antemedian band, the hindwing has 

 sometimes very little or no red, reminding one oi U. (Iriipifcrarum. A specimen 

 in the Tring Museum, bred from a larva taken in 1890 at Hemel Hempsted, 

 Herts., by Mr. Arthur Wilson, has the black colour much more developed 

 than any other example we have seen, the greater ]iart of the forewing, the median 

 band of the upi)erside of the abdomen and the underside of the latter being 

 brownish black; tlie discal band of the hindwing is broal, but the antemedian 

 band is distinctly separated from it, tliough the slightly reddish interspace is, like 

 the postdiscal interstitial band, shaded with lirowu. A i from Harrow-on-the-Hill 

 has scarcely a trace of jiink. 



S. Tenth abdominal tergite long, snbcylindrical, gently curved, distally 

 flattened, apex divided into two sharp points (PI. XXVIII. f. l(i) ; sternite (PI. 

 XXVllI. f. 17) with a very long horizontal lobe divided into two long slender 

 processes, wliich are cylindrical, tapering to end. Clasper broad, dorsally ronnded, 

 ventrally ()bli(|ne, broadly ronnded at end ; harjie (PI. XXXVIII. f. 19) ending in 

 a broad concave ]ilate, tlie ventro-distal margin of which is turned up and somewhat 

 notched, wliile the oblicpie dorsal edge is irregularly dentate ; the harpe bears some 

 resemblance to that of Protoparce sesquiplcx (PI. XXXVI. f 12). Penis-funnel 

 (PI. XXVIII. f. 40, p-f) rounded; penis-sheath (PI. XXVIII. f. 40) ending in a 

 rather sliort, broad, obtusely rounded j)rocess. 



?. Vaginal jilate (PI. XXI. f. 5) obviously different from that of the allied 

 species ; the mouth of the vagina (v) is ])roximal, the middle of the i)03tvaginal 

 plate is flat, sliglitly concave at the sides, convex in middle, smooth, and bordered 

 laterally by an obliipie fold, which is often irrcgnlarly folded transversely. 



