ical. Tlif w iiig-covcrs iisuiilly cxtciKl to llic sixth liiii; Iniiii llic nid n\' the 

 Ixidv, i <:, to (he hinder cdirc of Ihr I'diiith alxlomiiial scirim.-nl. Tlic tip is 

 ;icutc\ ^\ith soiuctiiucs ihrrc pairs of ciirvrd, still' lilainrnls arisiiiLT iVoiii tlie 

 s<ili<l ti|). As ill A'fDia/iiCduijiii. nr in Aiii-op/ri ij.r. wliich is siilitriTaiiraii, thi- 

 tcnniiial spiiic is Imiir ainl triradiali' at the end. and thr Iciiii, cniv fd lilannMits 

 arc wanting. 



In the sul)t(rraiicaii Jtiipa', the color is of the nsnal uniform dark reihlish 

 honi-brow 11 hue. In those which live exposed, tlie color varies, the pupa- 

 being l)aiided and spotted with whitish and pah'-reddisjj tints. 



Compared with the pupa' of the Nocti/idw nnd r;/ndkla% those of the 

 present family are more pointed, conical, and variegated, while those oj" the 

 latter are alwavs dull reddish-lirown. 



§8. InTKKN.M. anatomy of llIK I.AUVA. 



Anatomy of the larva of Zerene catenaria. — 'The following notes are 

 drawn up from a dissection of the larva of Znrin' cateruirhi. The (Psoidi- 

 a'fus is not so long as in Dahuia ui'mistra, and its junction with the 

 ])r()veutriculns is not so distinctly marked as in Datatia. 'I'lic intestine 

 is much as in Dafana. T\w. c(reuin is much the same, lint without the 

 well-marked longitudinal hands oii it. The six urinary lubes are as in 

 Dataua; they are once liilded, and the end of the liild reaches nearly 

 to the middle of the body. The silk-glands are lon<rer than the iiody by 

 a distance eipial to the thickness of the latter: being shorter than in D. 

 1/ihiislni, in which they are longer than the liody by one-half the length ot 

 th(> latter. They are folded in tli<> sarnie manner in l)oth; being folded twice, 

 the folds parallel, and situated along the under side ol the int(>stiue. There 

 is a jiair of dorsal yellowisii glands lying parallel to the median line of and 

 restiiiiz above, the intestine. Eaeli one is as thick as the terminal third of 

 the silk-glands, not diminishing in thickness in the head as do the latter. 

 These glands are about oue-tifth the length of the entire body, and pass into 

 the liead on the sides, and are situated much larther ap;irt than the salivary 

 glands. 



Anatomy of a Netnatus (!) laim — The following notes on the internal 

 organs of a saw-Hy larva. proi)al)ly Xe/natus, or a closely-allied form, are 

 introduced for purposes of comparison. The digestive system is nuicii as in 

 Dataiin mliiisf/a. The cKSophagns is small and short; not so long as the 



