Swallowtail butterflies are beautiful insects easily identified by their large size and hind wing
tails that remind one of the forked tails of swallows.
Fore wing length 710.97, width 36.62 at middle, hind wing
length 612.64, width 24.52 at middle.
Fore wing with cu-a interstitial to base of Rs & M, 2rs-m about 0.25-0.5 times as long as abscissa of M between 2rs-m and 2m-cua, vein 3rs-m absent; hind wing
with distal abscissa of Cu1 meeting cu-a closer to M than 1A.
We used the first 3 principal component scores that explained the greatest variation in forewing and hind wing
shape as characters for analysis in a multiple analysis of variance (MANOVA) using the statistics program IBM/SPSS v.22.0 (IBM 2013).
For the presence of the flow interaction between the fore wing and the hind wing
, the wake generated by the fore wing will be hampered by the hind wing
, which will also change the effective angle of attack of the hind wing
, so the aerodynamic characteristics of the tandem airfoil configuration are different from the single-wing case.
: m-cu indicated as short pigmented vein interstitial to vein r-m; vein M+CU about 1.8x 1M; vein r-m 2.5x vein 1M; vein RS faint, slightly curved at middle.
The most consistent difference between butterflies and moths is that nearly all moths have a tiny hook-like structure joining the hind wing
to the forewing, but butterflies do not.
irrigatus, mention that the adults can be recognized by the frons without setae; antenna short, same length in both sexes, about 30 flagellomeres; antennal fossae separated by about width of pedicel; fore femur without clavate setae; ocular rim without setae; fore femoral sense hair as long as fore femur and mid femoral sense hair; mesonotum without blade-like setae; tibial spurs present; pretarsal claws large, longer than one-half length of distal tarsomere; pilula axillaris large; fore wing vein 2A runs in a fairly even curve toward 3A; posterior area of hind wing
narrower than presectoral area, CuA bends to hind margin at or before origin of medial fork; anterior banksian line weakly developed; fore wing without dark brown stripe in mediocubital area.
Fore wing tawny with black boarder, apical half of the wing black with white bands; hind wing
tawny, black boarder with two irregular series of white spots, inmale under side black and white spot; veins marked with black bands; apophysis posterior, thorn - like; ductus bursae long; corpus bursae balloon like with rod like cornuti (Fig.
6.3x as long as wide; marginal cilia slightly more than one-third the width of wing.
3A,B) and 15.47- 28.78% in the variation in the shapes of hind wing