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; rp, hypopharyngeal lamella; 

 m, membrane forming fold between procoxae to hold labium. 



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

 sh, sense organs. 



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

 ah, sense organs; si, slit of labium. 



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

 opening; ivgo, openings of ducts of wax glands; .s/?, sense organs; .r, 

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

 of plate. 



Fig. 5. — Cross section of lain 1 : nicl, mandible; mx, maxilla; »i, longi- 

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



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

 anal plate; sgp, .subgenital plate; nvid, oviduct; sh, sheath; sfp, sting- 

 palpi. 



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

 meracrnthus, co>a. <:t?.., veriiov(.d. (li?G:vannmatic : Dicff, meta- 

 tergum; vif, metafurca; bs, region of base of secondary; es 3, region 

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

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



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

 and metafuica removed, diagrammatic: mett, metatergum; mf, 

 metafurca; str, part of metasternum; mer, meracanthus; em 3, meta- 

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

 of em 3; troc, trochanter; fern, femur. 



