PLATE XXXI. 



Fig. 1. — Cross section through procoxae and mouth parts: cox, coxa; c, 

 clypeus; p and pc, parts of pharyngeal canal; mds, mandibular 

 sclerite; mxs, maxillary sclerite; s, setae; cp, hypopharyngeal lamella; 

 m, membrane forming fold between procoxae to hold labium. 



Fig. 2. — Lateral aspect of tip of labium: t, lateral tongue-like processes; 

 ?h, sense organs. 



Fig. 3. — Cephalic aspect of tip of labium: t, lateral tongue-like processes; 

 sh, sense organs; si, slit of labium. 



Fig. 4. — Base of supra-anal plate of female showing wax glands: a, anal 

 opening; wgo, openings of ducts of wax glands; sh, sense organs; x, 

 chitinized portion of plate; y, slightly chitinized, translucent portion 

 of plate. 



Fig. 5. — Cross section of labi 1: md, mandible; mx, maxilla; m, longi- 

 tudinal muscles ; si, slit of labium ; I, lumen in mandible. 



Fig. 6. — Cross section of ovipositor through base of sheath: spp, supra- 

 anal plate; sgp, .subgenital plate; ovid, oviduct; sh, sheath; stp, sting- 

 palpi. 



Fig. 7.— Lateral aspect of metathorax, part of metastemum, epimeron, 

 meracanthus, coxa, etc., removed, diagrammatic: m,ett, meta- 

 tergum; mf, metafurca; 6s, region of base of secondary; es 3, region 

 of metaepisternum; str, part of metastemum; end, a rod connected 

 to metafurca; x, point of articulation of em 3. 



Fig. 8. — Lateral aspect of metathorax, part of metastemum, episternum 

 and metafurca removed, diagrammatic: Ttiett, metatergum; m/, 

 metafurca; str, part of metastemum; mer, hieracanthus ; em 3, meta- 

 epimeron; cox, coxa; scl, an accessory sclerite; x and y, articulation 

 of em 5; troe, trochanter; /em, femur. 



