Vol. XXvi] ENTOMOLOGICAL NEWS. ^OI 



The cxuvia of April jo was probably lost ia the cartiM|iiake. 



The following description is based on all the lanrae studied and on 

 the two exuviae of imotinata i and ftllucida i . The differences 

 shown by the lanrae of various sizes are given in the table on page 

 304. As has already been stated,* 1 have not been able to find any di£- 

 fercaoes between these two exuviae other than those due to injuries 

 s u sta in e d by the lanrae previous to transformation. 



Head thallowly concave posteriorly. Compound eyes and their om- 

 nwtidial lenses very distinct : in most of the akoholic lanrae the dorsal 

 svrface of the eye below the chitin slMming daO greeatsb-Uue with 9 

 to II divergiiig darker streaks which radiate from a point caudad to 

 the inner poalerior dorsal angle of the eye. Ocelli indicated by three 

 smoother patches amid the otherwise findy w rinkl e d and finely spina- 

 kise dorsal surface of the head. Nasus of the larvae with four pale 

 streaks extending from its superior to its inferior margin, two of them 

 ■limmlian. the other two lateral, right and left. Labrum hardly 

 BOlehad 00 hi free margin, which is ol i a cur e d by asatted hairs ia the 

 exuviae; especially at each skle where, viewed from abtnt, th«y form 

 a small tuft Edges of the gcnae which botmd the em oMteriorly and 

 inferiorly with a row of closely-set s pi n a lft . 



Amtemmat y-jointed. decreasing in diameter from t m 7. lengths ui 

 the joints in larva No. 4: (1) M. (a) .48. (3) .4. (4) •2a4. (5) -^^ 

 (6) .16c (7) Ja64. total &199 mm. 



MmmiibUs stout Right maadihic (PL XL figs. 4. 41) at its apex 

 with four teeth, of which the most dorsal or foremost is u imi lly die 

 widest, the second the smallest, the third and fourth kmger than tiie 

 other two. the fourth loofat and kariag on tU inner ventral edge a 

 small basal dcntide: on the inner surface, proxhmd to and dtstiactly 

 separated from these apical teeth is a shorter, tapering and carved 

 proccM tenainatiag in an acute apex and bearing a minute snte apifa l 

 posterior denticle. Left mandible (PL XI. figs. 5. s<) with apical 

 teeth similar to those of the right, but the foremost (most dorsal) 

 tooth has a samH dorsal denticle (aaccpt in kirva Na 1) and the 

 fourth (most vctrtral) tooth has no basal denticle and in some is no 

 kM«er than, or even not quite as kmg as. the third tooth : the process 

 on the famer surface is mudi hrger antero-posteriorly than that of the 

 riifht side, forming when viewed from below (the mandibles being 

 open) a crescent-shaped ridge whose edge is crenulate or denticuhte 

 and Kiarfnatii at both anterior and poalerior ends in a slender acute 

 spiae; the concavity of the crescent is proximaL These proce ss es <d 

 Ibe kmer surface of each amadiUe appear to correspond with die inner 

 of the mandMc of tfm krvae of Cora.^ The lateral surface of 



• Ent New*, xxv. p. 345. Oct.. 1914- 



t Cf. Ent News. xxii. p. 53. pL H, fig. i& 



