1918] Pupce of Common SphingidcB 423 



which resemble each other very closely. Indeed they are so 

 closely related as to make one doubt that there are two species 

 here. Unfortunately it has been impossible to breed these 

 species so that all data is obtained from purchased specimens. 

 The individuals vary almost as much from each other as the 

 species do. For example, the maxillae in some individuals of 

 L. conifer arum instead of extending to the caudal margin of the 

 win*g, as they appear to do normally, are overlaid by the wings 

 so that they are apparently shorter and like a typical boniby- 

 coides. The following are the characteristics which seem best to 

 separate the two species: 



a. Annulets distinct on the first three abdominal segments; punctures larger on 

 the dorsum of the cephalic half of abdominal segments 1-7; spiracles with 

 width more than twice the length L. coniferarum 



aa. Annulets not distinct on the first three abdominal segments; punctures 

 scarcely larger on the dorsum of the cephalic half of abdominal segments 

 1-7; spiracles with width about twice length L. bomhycoides 



Lapara coniferarum A. & S. 



Color chestnut brown, usually with black blotches; surface of 

 body dull; head, thorax and appendages with rather deep impressed 

 lines making the surface rough; abdomen punctate, the punctures 

 considerably larger near the cephalic margin of the first six segments 

 and obscured by impressed lines, the remaining segments distinctly 

 punctate, with the punctures more nearly of uniform size; labrum ele- 

 vated, usually rugose; mandibular area elevated forming irregular 

 tubercles; maxilke normally reaching the caudal margin of the wings, 

 but sometimes overlaid by the wings near the distal end; antennas of 

 male extending as far caudad as the prothoracic legs, those of the 

 female a little shorter; median line distinct on the thorax, generally 

 carinate on the prothorax; abdominal segments 1-3 with very distinct 

 annulets; scar of caudal horn never present; cremaster slightly rugose, 

 2 mm. long, ending in a minutely bifurcate spine. Length of pupa 

 25-32 mm., greatest width 6-7 mm. 



This species is exceedingly variable, especially in regard to 

 the sculpturing of. the body. 



Lapara bombycoides Wlk. 



This species varies but slightly from the preceding. It is usually a 

 little larger so far as obser\^ed. The body seems to be a little smoother 

 especially on the wings, which are not sculptured so deeply, and on the 

 abdominal segments where the punctures are not much larger on the 

 cephalic margins of the segments 1-7, nor on the remaining segments. 

 The annulets are not distinct on any of the segments. The spiracles are 

 a little smaller and more circular than in the preceding species. Length 

 of pupa 30-35 mm., greatest width mm. 



