336 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 51. 



rounded or subcordate in outline, situated on a tubercle-like projec- 

 tion of dorsum; operculum similar ia shape and almost entirely 

 filling it, obscuring the lingula. 



Adult with one flexure in radial sector of forewing and no spur of 

 media; wings usually blotched or shaded. Males much smaller 

 than females. 



Type. — Aleurocanihus spiniferus (Quaiatance) . 



KEY TO SPECIES OF ALEUROCANTHUS. 



1. Pupa case with 12 apinea on anterior half of case only T-signatus. 



2. Pupa case with 100 or more long spines situated close together, forming a sub- 



marginal ring; color black; size 2 by 1.6 mm longisjrinits. 



Pupa case with 50 or less rather long spines forming a submarginal ring 3. 



3. Pupa case with about 50 si^ines forming submarginal ring; color yellowish; size 



1.33 by 0.99 mm hirsutus. 



Pupa case with less than 40 spines forming the submarginal ring 4. 



4. Pupa case with 30-36 spines forming submarginal ring 5. 



Pupa case with 16-26 spines forming submarginal ring 7. 



5. Pupa case over 2 nam. long; 30 hooked spines forming a ring around the dorsum 



just witliin the margin; color black hambusae. 



Pupa case less than 2 mm. long 6. 



6. Teeth of the margin knobbed, a space of 0.1 mm. occupied by 10 teeth; size 1.39 by 



0.88 mm. ; submarginal area armed with 34-36 prominent spines mangiferae. 



Teeth of the margin not knobbed, but triangular and somewhat acute; space of 

 0.1 mm. occupied by 14 teeth; pupa case black, submarginal spines an-anged 

 in two series; adults with mottled wings citriperdus. 



7. Submarginal spines extending out some distance beyond the margin of case 8. 



Submarginal spines not extending beyond the margin of the case, or but slightly 



beyond it 11. 



8. Teeth of the margin of case knobbed, a sj^ace of 0.1 mm. occupied by 13 teeth; 



size 1.09 by 0.68 mm.; color black calophylli. 



Teeth of margin not knobbed 9. 



9. Teeth of margin very large and rounded, a space of 0.1 mm. occupied by 6 or 7 teeth; 



spines long and prominent; color black; size of case 1.4 by 0.89 mm. ; adults with 



dark wings and clear markings; bodies reddish brown woglumi. 



Teeth of margin not large, a space of 0.1 mm. occupied by 12 or more teeth 10. 



10. Teeth of margin not acute, moderate in size, a space of 0.1 mm. occupied by 12 



teeth; size of case 1.23 by 0.88 mm.; spines not long; eggs with reticulate mark- 

 ings spiniferus. 



Teeth of margin somewhat acute, the outer spaces shallow; a space of 0.1 mm. 

 occupied by 16 teeth; size 1.168 by 0.75 mm. ; egg striated piperis. 



11. Submarginal spines not extending beyond the margin of case, or but slightly 



beyond it, and spht at their apices into a number of fine fimbrications; submar- 

 ginal area corrugated or granular 12. 



Submarginal spines very short, becoming mere tubercles; color brown to black, 

 marginal teeth distinctly serrated; size of pupa case 0.752 by 0.512 mm. 



dissimilis. 



12. Dentition moderately acute, a space of 0.1 mm. occupied by 26 teeth; color on leaf 



dark brown; yellowish under the microscope spinosus. 



Dentition quite acute, a space of 0.1 mm. orcupied by 26 teeth; color on leaf 

 deep black, under microscope dark brown; spines stout, deep black at base; 

 size 1.01 by 0.72 mm.; egg reticulate with stalk nearly twice length of egg 



serratus. 



