208 ANTONINA SOCTALIS. 



gate, about three times longer than broad ; legs absent. 

 Antennas (PI. XXXVI, fig. 3) of three joints, basal 

 joint shortest, second and third of nearly equal length, 

 the latter with five or six rather long hairs at the tip, 

 and a single one on the first joint ; articulations clearly 

 defined. Rostrum inserted about midway between the 

 antennas and the anterior pair of spiracles ; mentum 

 uniarticulate ; loop of rostrum not extending beyond 

 the centre of the space between the spiracles. Pos- 

 terior pair of spiracles (PL XXXVI, fig. 4) about 

 midway between the extremities ; anterior pair midway 

 between the former and the cephalic margin. Anal 

 orifice (PI. XXXVII, fig. 1) with six long stout hairs 

 lying within a trough-shaped cavity; anal lobes indicated 

 by three or four long hairs. Dermis above with 

 circular spinnerets which increase in number towards 

 the margins of the abdominal segments, those at the 

 posterior extremity becoming gradually longer and 

 more numerous. 



Long, 4-8 mm. 



Larva. Antennae of six joints, of which the sixth is 

 much the longest; formula 6 (1, 2, 3, 4, 5). Anal 

 lobes well developed and furnished with several spines. 

 Anal ring with six hairs, recessed from the margin. 



Habitat. Living in company with Aclerda japonica, 

 Newst., under the leaf-sheaths of a bamboo (Arundi- 

 naria japonida), under glass, Broxbourne, Herts, on 

 freshly imported plants. Received from the Editor of 

 the c Gardener's Chronicle,' Dr. Maxwell T. Masters, 

 26th January, 1899. 



The following particulars concerning the form and 

 colour of these insects in life were made when they 

 first reached me. Unfortunately I did not then dis- 

 cover that there were two species living together, and 

 I cannot now eliminate the characters of the respective 

 species with any certainty : " Form distinctly elon- 

 gate, cephalic portion more or less clypeate, with the 

 margin thin and slightly produced ; convex and slightly 

 widest in the middle ; the whole dorsal area present- 



