PLATE 31 

 Embaphion muricatum: 



A. — Epipharynx (eph) and anterior margin of labrum. 



B. — Head: cl., clypeus; fa, anterior angle of front; epi, epistoma; /, frons; epc, 

 epicranium. 



C. — Lateral view of larva. 



D. — ^Mandibles and hypopharyngeal sclerite from below. Concavity of molar part 

 of left mandible grinding against the sclerite. 



E. — Gula, labiiun, and right maxilla from ventral side: gu, gula; tp, tentorial pit; 

 sm, submentum; me, mentum; stla, stipes labii; li, ligula; hyp, hypostoma; fm, 

 fossa for mandible; fc, fossa for cardo; ar, maxillary articulating area; ca, cardo; sti, 

 stipes maxillaris; &.y, basis of stipes; z>i and Uj' i^mer margin of stipes; jmo, mala maxil- 

 laris (probably lacinia); pag, basal membrane of maxillary palp. 



F. — Dorsal side of right and left mandible, hypophar>Tigeal sclerite between them: 

 a^ and a^, the bicuspidate mandibular apex; t, tooth of cutting edge; m, molar part; c, 

 carinate edge on exterior side of cutting part of mandible ; s, soft-skinned, seta-bearing 

 elevation below the carinate edge; e, margin of chitin framing the soft elevation. 



G. — Mandibles and hypopharyngeal sclerite from below; no grinding in this position. 



H. — Left anterior leg showing the anterior face of the leg hanging perpendicularly 

 down from a horizontally placed larva. 



I. — Left anterior leg, exliibiting its posterior face: cox, coxa; ir., trochanter; /e, 

 femur; ti, tibia; ia, claw-shaped tarsus, shortly but not correctly designated as "claw." 



