MEMOIKS OF THE NATIONAL ACADEMY OF SCIENCES. 81 



The specimen kindly sent mo by Dr. K. K. Kunze from Phoenix, Ariz., though it is deprived 

 of its head, agrees witii my tigurc {'2) of the hirva of ^-1. i.iutf!. It dilfers in respect to the armature 

 from my drawing on PI. XLIX, tigs. 3, 3a, in the following respects: The thoracic horns are 

 provided witii more spinules, which are not confined to the base, but are scattered along nearly 

 to the tip of each horn; the spines on abdominal segment 1 are larger, and but slightly smaller 

 than those on segments 2-7. As regards segments S-ld my larva agrees well with my figure 2e, 

 (PI. XLIX) though the dorsal tulicrcles on segment IX are larger. 



Doctor Kunze has been obliging enough to send me the following description of the living 

 larviv collected b_v him: 



Description of larva: In general appearance the larva reminds one of a young ViUierania rcr/aUs. 



Face oval, green, a white line each side of triangular space and next to that a narrower black line of obovate 

 8hape. Mouth parts blackish. On tirst segment a diadem of silvery granulations from spiracle to spiracle, all of 

 which latter are lilack throughout. On second thoracic segment are two spinose tubercles, 6 mm. long, on each side, 

 four in all. On third thoracic segment are four tubercles, two on each side, spinulated like the others, and 6 mm. long. 

 The dorsal tubercle is purple or violet, and the lateral one of apple green throughout. Spinules of dorsal tubeccle 

 black, spinules of lateral one green. Segment 4 and inclusive of 11, have on each side one above the other, two 

 silvery, short tubercles, the upper of cuneiform shape, of which the inferior rests on the infraspiracular line. The 

 inner side of these silvery tubercles is bright red. A crescent of silvery granulations, just liack of the tubercles of each 

 segment 4 to 11. On the penultimate segment (12), a spinulated tubercle, 4 nnu. long, reddish brown at base, green 

 at tip, spinules whitish at base and green above. Three small silvery tubercles on last segment aliove ana! plate. 

 Dorsal and lateral surface smooth, apple green. Abdominal parts c^ncolorous. Prolegs much granulated from base 

 to feet, the granulations green. Thoracic legs, green, the base only with green granulations. Infraspiracular line 

 pink, with lilac reflections. Spiracles black. Between the silvery dorsal tubercles of each segment, two silver 

 granulations. The anal plate is lined by a triangle of white granulations. Clasper of the prolegs brownish. 



Length of larva at rest, September 30, 1904, IJ inches (29 mm.) ; length of larva in motion, September 30, 1904, 

 li inches (32 mm.); width of larva j\ inch September 30, 1904 (.5 mm. ). 



Found on Pai-kijuonia iiiicroplti/lla, September 28 and 29, 1904, Phoenix desert, Arizona. 



Lest stage of Sphingicampid larra — Adelorephahi isias. — Found on a mesqviit tree {Prosopin julifloni), October 24, 

 1904, in the garden of Dr. E. E. Kunze. Phoenix, Ariz. 



.\ntenn;e whitish, mouth parts brownish. The lateral thoracic tubercles on the second and third segments white 

 and but little spinose. Dorsal thoracic tubercles pink, tipped white, and green at the base, equally so, but little 

 spinose. The small cuneiform, silvered and pink-tipped tubercles on the segments of dorsal row 2 mm. long. 

 Those of the subdorsal row IJ mm. long, the points of all silvered. The tubercles had an upward direction. The 

 spinose tubercle on the penultimate segment pink, tipped white, and green at base. Infraspiracular line violet 

 lavender; spiracles black, edged with white. Thoracic feet green, claws brownish. Abdominal feet green at the 

 base; hooks brownish. General color an apple green. No other changes observable. Lengtli at rest, 4.5 mm. ; length 

 in motion, 54 mm.; average diameter of segment, 8 mm. 



I^ood plants. — ParHtisonia microphylla, native name "Palo Verde," and mesquite tree 

 [Pi'osopis juJ iJJora). (Dr. R. E. Kunze). At Brownsville, Te.x.. it was found ))y Mr. Doll on 

 the Mexican ebony {Acacia Jie.ricavlii). 



Geographical distribution. — While this species was first detected within the limits of the 

 United States at Brownsville in southeastern Texas, near the mouth of the Rio Grande, a few 

 miles south of latitude 26" N., and opposite Matamoras, Mexico, it was next discovered at 

 Phoenix, Ariz., and its geographical range almost exactly coincides with that of A. heilighrodtii 

 (see map III), though it has not yet been detected in New Mexico. In Central America it was 

 collected, in the State of Jalisco and Costa Rica (Druce); Mexico (Boisduval). 



Habits of the larva. — For much that we know of the transformations and habits of this fine 

 species we are indebted to Doctor Kunze, who wrote under date of October 5, 1904. 



During the latter days of September he camped for three days on the Pliocnix desert near 

 the mountains around Prescott, Ariz., and was fortunate enough to detect a beautiful larva 

 feeding in the hot sunshine on ParJcinKmna iidcnpliylla. or ■'Palo Verde" of the natives. The 

 following daj' he found a second specimen half a mile further away, but no others. 



I looked carefully for a whole day or more, but could not detect another such, which are readily observed from 

 the two rows of silvery tubercles as bright as a mirror, glistening in the sun like gems. Fortunately I succeeded in 

 feeding the larva with a much larger-leaved species, Parkinnonla lorreyana, the leaflets of which are the size of the 

 head of a shawl pin. I mailed these larva? to Mr. L. H. Joutel, of Xew York, at once, and trust he received one or 

 both alive for figuring. I am sending him every three or four days a tin box of the food plant, because Parkinsonia 

 is a subtropical plant, and I know of only two species. 



