132 COE 



posterior end of body. Many of the broader bands show a number 

 (three to twelve) of fine, pore-like, pale dots in midst of dark band 

 between the median and lateral longitudinal lines. Transverse bands 

 often broaden out as they join the longitudinal lines (p1. xv, fig. 5), 

 but a few are interrupted jvist ventral to the lateral longitudinal lines. 



Ventral surface anteriorly same as dorsal surface in color, but with 

 a more conspicuous flecking of minute whitish dots. In intestinal 

 region the yellow color gradually assumes a more greenish tone, until 

 imperceptibly a shade of sage green, or very light olive green, is 

 reached, and this color extends through to the end of the body. The 

 green color is more or less tempered and obscured by an irregular coat- 

 ing of very fine whitish dots which cover ventral surface irregularly, 

 except near the median line ; similar white flecks are scattered over the 

 dorsal surface also. 



After preservation in formalin or in alcohol the portion of the body 

 situated immediately posterior to the third black ring becomes deep 

 slaty blue or blackish in color. This dark color is sharply demarcated 

 anteriorly, but fades out gradually after extending about as far as the 

 ninth ring (pi. xv, fig. 6). 



The pale ochre color with deep black rings and longitudinal lines is 

 retained even in cedar oil and in paraffin. The colors, markings and 

 shape of anterior end of body after preservation are strikingly sugges- 

 tive of the abdomen of the yellow-jacket wasp ( Vespa) . 



Proboscis pore is situated just below anterior end of median dorsal 

 black line. Mouth, as stated above, lies in first transverse band. 



In midst of lateral, longitudinal black line, and at the anterior border 

 of the fourth transverse band (or in it) is a rather conspicuous, color- 

 less, oval pore, representing the lateral sense organ, or ' side organ.* 



Intestinal canal is usually greenish in color — sometimes sage green. 



Body often shows a tendency to become constricted through the 

 transverse black bands, and when broken the rupture takes place in 

 these bands, as has been noted in other species of the genus. 



Cephalic glands but little developed, appearing only as scattered 

 gland cells lying beneath and beside the rhynchodseum. No glands 

 whatever are to be fovmd between the cephalic blood lacunae and the 

 basement layer of the integument. The integumental gland cells, on 

 the other hand, are very highly developed, and form an unusually mas- 

 sive layer beneath the ordinary superficial glandular and ciliated cells. 

 The secretion of these deeper glands of the integument is apparently 

 of the same nature as that of the true cephalic glands, which in all 

 probability serve merely to supplement the supply furnished by the in- 



