377 



of u Y. At this staae the larva is covc'i-c'd with wry long 

 hairs, those extendiiiii- from the eanchil seuiiieiits eciualino' its 

 entire length. The last segment terminates in a single proleg 

 or sneker, which is nsecl effectively whenever the grul) is forced 

 to travel over a smooth snrface, snch as glass or tin. 



The larvae molt in five to eight days after hatching as com- 

 pared to Riley's fonr to nine days for this instar*. The second 

 stage larvae molt in fonr to ten days — Riley's time fonr to 

 seven days. The third stage is passed in five to eight days — 

 Ililey's three to six. The fourth stage larvae molt in three to 

 thirteen days, against Riley's three to six. The tifth instar 

 reqnired live to eight days — Riley's live to seven days. The 

 sixth was six to nine days — Riley's six days. 



Tender nornnil conditions the larvae are fnlly developed 

 after the sixth molt and at once seek a place to pupate ; they 

 leave the food and hore into any snbstance at hand. It is at 

 this stage that they do damage to cork, etc., even horing into 

 hard ]ilanks, if nothing else offers a hiding ])hu'e in which to 

 ])upate. P)Oth their habits and strncture make it a])pear that 

 the ])upae are preyed npon in their natural development. The 

 last larval skin bears a transverse row of s})ines above on each 

 of the posterior segments, as Riley has noted, and these pro- 

 ject ontward, after the skin is shed and crowded into the 

 opening of the pupation burrow. From onr observations there 

 arc no indications that the pu])ae of this s})ecies are destroyed 

 l)y the larvae, even when they are left exposed. 



Pupa: — The ]nipal ])ei-iod here lasts for ten to eleven days, 

 while Riley found that this stage required fourteen days. 



There are similar jtockets on the dorsum of the abdomen 

 to those that are found in Aftdf/cinis plchlns. Tn this case, 

 however, there are only tive in ])lace of six, as found in that 

 species, and tlio they bear chitinized edges tluy hud-: the teeth. 



* It was noticeable that where food was abundant, development was 

 rapid, while a scarcity of food not only lengthened the period for each 

 of the several instars, but, in some cases, greatly increased the numlier 

 of molts. 



