Entomological Notes. 433 



The various figures hitherto published of the pecuhar 

 structure of the mouth oi'gans of the Trichopterous pupa 

 fail to give a clear idea of their relative position; indeed, 

 in that of Hydropsyclie senex, given by Pictet, copied in 

 my Introduction, fig. Ixvii. 14, vol. ii. p. 61, the maxilla3 

 and labrum are represented as entirely absent. This is 

 the more to be regretted as the intermediate strvicture of 

 the mouth organs of the pupa, between those of the active 

 biting larva and the rudimentary trojjhi of the imago, 

 is especially interesting in a morphological point of view. 

 In Mr. Poulton's pupa, however, the mandibles although 

 small are strong, horny, and terminate in an acute jDoint, 

 occupying the middle of the face, and being directed 

 forwards; the maxillfe and lower lip on the other hand are 

 deflexed and lie upon the breast, without any apparent 

 connexion with the mandibles. They appear to be sol- 

 dered together, the inner margin of the round apical lobes 

 of the maxillse meeting together, and the large lower lip 

 occupying the central space, the maxillary and labial 

 palpi (each being three-jointed)* extending longitudinally 

 from the outer margin of their respective supports. 



As the various figures given by M. Pictet in his great 

 work on the Phryganeides do not show either the middle 

 feet of the pupa or the relative position of the maxillas 

 and lower lip, I have represented them in the accompany- 

 ing figures : — 



DESCRIPTION OF THE FIGURES. 

 Plate X. B. 



Fig. 1. Underside of the front part of the body of the pupa of Anaholia, 

 nervosa male: a, labrum; h, mandibles; c, basal portion of 

 maxilla; c*, apical lobe of maxilla; d, maxillary ])alpus; 

 e, labium; /, labial palpi; g, antennte; h, coxaj of fore legs. 



Fig. 2. Mandible. 



Fig. 3. Middle leg. 



2. Notes on the Parasitism of certain Lepidopterous 

 Insects. 



Referring to my memoir on Epipyrops onomala, pub- 

 lished in our Transactions for 1876 (p. 519), 1 now 

 beg leave to lay before the members of the Society a short 

 note on the habits of an analogous (if not the identical) 

 species which Lieut.-Col. Godwin Austen observed upon 



* In the femak' pupa of this species the maxillary palpi a'c fiv^-jointed. 



