348 



ERNEST WAREEN. 



In the mid-dorsal line the transverse commissure between 

 these two lobes is relatively less stout than in the imago (cf . 

 text-fig. 5, c, pre. c, and PL XIX, fig. 46). 



The antennary lobe and nerve (a. n.) are antero-ventral as 

 in imago. 



The tritocerebrum {tri.) is a small, rounded posterior lobe 

 quite similar in shape and position to that of the imago. 



p.o.c.^ 



•prc.c. 



Larva of Paracorotoca. Cephalic nervous system, a. Side 

 view. B. Veutral view. c. Median vertical long'itndinal 

 section, p.o.c. Postoral commissme. prc.c. Procerebral com- 

 missure, m. H. Maxillary nerve. Ih.n. Labial nerve, x 150. 



The suboesophageal ganglion is of great size as in the 

 imago. There is a postoral commissure (text-fig. 5, b and c, 

 'p. 0. c.) which is doubtless the transverse commissure between 

 the primitive mandibular ganglia. The 1st and 2nd maxillary 

 ganglia are continuous. I am not aware as to whether it has 

 been ascertained that it is usual for full-grown Aleocharine 

 Staphylinid larvse to retain the primitive condition of 

 possessing a separate mandibular commissure. 



The prothoracic ganglion is more widely separated from 



