32 
Psyche 
[March 
Figures 19-28. Leptomesites escheri. 19, head in side view, X278; 20, 
head in anterior view, X278; 21, left mandible in anterior view, X423; 22, 
left maxilla in anterior view, X415; 23, restoration of larva in side view 
(minute hairs omitted), X33; 24-26, three body hairs, X139; 27 and 28, 
ventral prothoracic structure in side view and in anterior view, X272. 
and slightly raised ; each with two sensilla, each of which bears a 
spinule. Labrum slightly broader than long; the ventral border 
semicircular; posterior surface spinulose, the spinules in long rows, 
the rows concentric with the ventral border. Mandibles with the 
toothed border directed laterally; feebly sclerotized; each with a 
rather long slender sharp-pointed apical tooth, which is curved 
laterally; lateral border with nine long slender sharp-pointed teeth; 
anterior surface furnished with numerous short rows of long spinules, 
the rows so close together that the spinules overlap. Maxillae conoidal, 
