l893-] ENTOMOLOGICAL NEWS. 311 



Horn stout, moderate, slightly curved, coarsely granular; color blackish, 

 pitchy, thickly covered with little black dots in pale circles; seven oblique 

 lateral pale shades. Thoracic feet, horn and areas around the spiracles 

 black. Thoracic segments (joints 2-4) without dots, smoky-brown; cer- 

 vical shield area paler, bisected by a pale hne into two halves, narrowly 

 lined with black. A black patch on joint 2 posteriorly, partly concealed 

 by the " collar." On joints 3 and 4 behind the collar is a large, elliptical, 

 sooty-black patch, surrounded by a white shade, which is more marked 

 anteriorly, and obtains also on the collar-like projection before the patch. 

 Anal plates moderate, triangular, granular, setiferous, concolorous. 



Citheronia mexicana Grote & Robinson. 



Penultimate stage. — Head smooth, evenly rounded, dark brownish 

 black, sutures broadly pale; mouth parts, except the jaws, also pale. A 

 few short, pale hairs above the mouth; width 4.3 mm. Body cylindrical; 

 anal feet large, with triangular corneous plates; abdominal feet long, with 

 two rows of elongated, setiferous tubercles. On the body are three seg- 

 mentary rows of modified processes. Row i on joints 2-13 subdorsal, a 

 single dorsal one on joints 12 and 13 with a subdorsal one each side on 

 the anal plate; row ii lateral on joints 2-13; iii, subventral on joints 2-13 

 and a small row iv on joints 2-6, 11- 13 below row iii. These processes 

 resemble antlers, being furnished with about six thorn-like curving 

 branches; row i on joints 2-4 and 12, about twice as long as the others, 

 thicker and with more branches. Row ii on joints 3 and 4, and i on joint 

 13 slightly longer than the others, but shorter than these just mentioned. 

 Apices of processes minutely setiferous or bare; edges of the 3 anal 

 plates with smooth conical, setiferous tubercles; color blackish, nearly 

 black; processes all shining black, except the basal half of i and ii on 

 joints 2-4 and the short i on anal plate which are white. In another ex- 

 ample the bases of many of the processes are white; spiracles large, 

 black. 



Last stage. — Head as before, but the pale area around the mouth 

 spreads over the sides of the lobes; ocelli black; a i&vi very short, but 

 bristly setse; width 6.2-6.5 mm- Processes and tubercles all proportion- 

 ately much shorter than before, the longest one scarcely more than half 

 as long as the corresponding ones in C. regatis, the branches reduced to 

 short, conical prominences, each with a very short spine at tip; tubercles 

 on feet and anal plates shortenened, rounded, with small setae; coloration 

 much as before, but the body is paler, appearing to have been blackish 

 olive. A whitish stigmatal shade, defined along the undulations of the 

 subventral ridge. Spiracles large, black. Thoracic feet and anal plates 

 partly pale. 



Described from alcoholic specimens. 



Eaclea indetermina Hoisduval. 



1S32.— Boisd., Cuviers An. King. (Griffith) pi. 103, fig. 8. 

 viridus Reakirt. 



