806 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. s.^vii. 



Stage III. — Head rounded quadrate, .shining- black, mouth whitish; 

 widtli, 0.T5 mm. Body with joint 5 prominent, 12 enlarged dor.sally. 

 AVhitish, largely overlaid with purple black, joints 6, 10 and 11 are 

 pale, the warts pale with dark color infiltrated between; other warts 

 black. Hairs stitf, black, only a few white except on the pale seg- 

 ments. Hairs of tubercle i on joint 12 subpencillcd, erect. Thoracic 

 feet black ringed, abdominal ones pale. 



Stage IV. — Head shining black; width 1 mm. Bod}^ cylindrical, 

 warts moderate, joint 12 slightly enlarged. Black, marked with white, 

 which is cut into streaks and spots on joints 3, 0, 10, 11, and 13; a 

 white subventral stripe. Warts black; hair black except some white 

 ones which are mostly shorter, from the pale parts. No secondary 

 hairs. 



Stage V. — Head shining, black; width, 1.4 nun. Body all black, 

 densel}^ covered by the bristly black hairs, no open. dorsal space. On 

 joints 3, 4, 6, 10, and 11 there are also intermixed fine soft wavy white 

 hairs, some of the bristles here also white. Subventral hairs largely 

 white and longer. Joints 5 and 12 rather prominent. 



Stage VI — Width of head, 2.3 mm. All black, joint 12 prominent. 

 Hairs of joints 5 and 12 dorsally deep ))lack, of 4 and 6 mixed with 

 feathered white, the rest mostly white but mixed with black, bristly, 

 irregular, rather dense; some long pale hairs subventrally; spiracles 

 white. 



Stage VII — Width of head, 3.5 mm. Black, the segmental incisures 

 3—4 and 4-5 exposed in the warning attitude; joints 5 and 12 promi- 

 nent. No change from the previous stage; warts black; hair l)ristly, 

 rather dense, black on joints 5 and 12, elsewhere black mixed with 

 ocherous white, distinctly ocherous on joints 4 and 0, weaker on joint 

 11. Some long hairs at the ends. Some of the hairs are softer but 

 hardly spinulose, most noticeable on the prominent segments. Warts 

 i of joints 6 to 11 more or less white. 



APATELA EMACULATA Smith. 



One specimen, Jul}' 29 (Bear Lake). This is very close to dlstans 

 var. dolorosa, and ma}' prove to be the same. It is, however, a 

 smoother gray, without the contrasts of light and dark shades, the 

 transverse posterior line is less distinctly dentate, and there are other 

 slight differences. Therefore I keep them separate until more material 

 is at hand. My specimen agrees closely with Smith's type from 

 Easton, Washington (Koebele). 



APATELA IMPLETA Walker, var. ILLITA Smith. 



Thirteen specimens, June 2, 13, 16, 18, 19, 23, 25, July 19. This 

 form was described as a distinct species, but is better placed as a 

 western race of impleta. The specimens are generally darker than the 



