REPORT OF THE STATE ENTOMOLOGIST 1903 . 127 



Stage 2 [pl.4, fig.4]. Length 1 mm, width .4 mm. Form 

 broader in proportion to length than in the first stage, and the 

 legs are much shorter. The chief difference between this and the 

 preceding stage, is in the size and number of spines. The dorsal, 

 compound spines, which in stage 1 arose from conical bases, have 

 become much thickened, taper to a point and are about one fourth 

 the length of their bases, which latter are enormously developed 

 and thickly studded with chitinous projections [pl.4, fig.5a] . The 

 long simple spines arising directly from the body, are shorter and 

 their bases narrow [pl.4, fig.5&]. The marginal, compound spines 

 of each abdominal segment have lost all resemblance to their 

 previous form. Their rugose, spined bases have become thickened 

 and are about twice the length of the spine, which latter is nar- 

 rowed to a sharp point. 



Stage 3. Length 1 mm, width .5 mm. The terminal segment 

 of the antenna is about two and one half times the combined 

 length of segments 1 and 2. In this stage the compound dorsal 

 spines mentioned in the preceding have apparently suffered little 

 change, but their bases have increased five times the length of the 

 spines, and are correspondingly stouter and rougher [pl.4, fig.7a] . 

 The simple spines situated near these latter have not changed 

 much, though they are somewhat longer than in stage 2 [pl.4, 

 fig.76]. The bases of the lateral abdominal, compound spines are 

 four times the length of the spines [pl.4, fig.Sa], which latter 

 have not changed in appearance. Contiguous to these, singly or 

 in pairs, are other shorter compound spines on conical projections 

 about twice their own length [pl.4, fig.8&]. 



Stage 4 [pl-4, fig.9]. Length 1.5 mm, width .75 mm. Form 

 ovate, tapering anteriorly. Head nearly as wide as long, obtusely 

 rounded with the lateral margins behind the eyes arcuate, hind 

 angles rounded. Antennae four segmented, segment 3 a little 

 longer than the fourth, which is about equal to the combined 

 length of 1 and 2, the last being about one half the length of 

 the first. Eostrum stout, dark at tip and extending to about the 

 base of the first abdominal segment. Head, bearing four groups 

 of compound spines on tubercles or bases of varying size and length 

 arranged as follows : a median pair at the anterior margin ; three 

 directly back of these, the central one being smaller; two groups 

 of five of various lengths, each a little behind the eye and halfway 

 between the median line and the lateral margin. A long simple 

 spine is also found at the base of each of these groups. 



Prothorax tapering anteriorly, three times as broad as long; 

 with two median pairs of grouped compound spines at about 

 equal distance from the anterior and posterior margins, the 

 anterior pair with two smaller spines at their bases. Laterally 

 there is a group of three compound spines at the apical angle 



