DURHAM DIPTERA. 



25 



Mesopleural suture 



P..III.2. 



Radial vein 



V,2. 



Metanotum 



B.IV. 



Scutellum 



B.I.i. 



Metapleura 



B.III. 4. 



Scutellar bridge 



B.I.1.&3. 



Metatarsus 



C.I.5. 



Scutellar bristles 



B.I.i. 



Mystax 



A.V.3. 



Scutellar suture 



B.I.i. 



0=Cell or Areolet of the wing 



Segments 



D.i. 





C.II.6. 



Seta 



A.IV.6. 



Occiput 



A.1X. 



Setae 



E. 



Ocelli 



A.I. 2. 



Setula 



C.II.4 



Ocellar bristles 



A.I.6. 



Shoulders 



B.I.2. 



Ocellar triangle 



A.I.i. 



Spine 



E. 



Onychia 



C.I.11. 



Spined costa 



C.II.4. 



Orbit A.I. 7, A.III.2, 



A.VI, A. IX. 



Spur 



E. 



Ovipositor 



D.3. 



Squamae 



CIV. 



Palpi 



A.VIII.4. 



Sternopleura 



B.III.5. 



Pennis 



D. 3 . 



Sternopleural suture 



B.III.2. 



Peristome 



A.VIII.I. 



Sternum 



B.III. 



Pleurae 



B.II. 



Stigma of pleura 



B.III.2. 



Plumose 



A.IV.6. 



Stigma of wing 



C.II.7. 



Pobrachial vein 



V.5 



Stigmatical bristle 



B.III.2. 



Post-alar calli 



B.1.3. 



Stripe 



F. 



Posterior legs 



C.I. 



Subcostal vein 



V.1. 



Posterior orbits 



A.IX. 



Supra»alar bristles 



B.1.9. 



Posthumeral bristles 



B.I.7. 



Style 



A.IV.6. 



Posthumeral region 



B.I.2. 



Tarsi 



CI.5-9. 



Postorbital bristles 



A.IX. 



Tibiae 



C.I.4. 



Postsutural bristles 



B.I.5. 



Thorax 



B. 



Postsutural region 



B.I. 2. 



Thorn 



E. 



Postvertical bristles 



A.I.5. 



Tomentum 



E. 



Praebrachial vein 



V.4 1 



Trochanter 



C.I.2. 



Praefurca 



V.2 1 



Unguicula 



C.I.11. 



Praescutellar bristles 



B.I.5. 



V=Longitudinal vein 



of the 



Praesutural bristle 



B.I. 8. 



wing 



C.II.4. 



Praesutural bristles 



B.I.5. 



Vagina 



D. 3 . 



Prsesutural region 



B.I.2. 



Vena spuria 



C.II.4. 



Prothorax 



B.III. 1. 



Ventral 



D.4. 



Prothoracic bristle 



B.III. 1. 



Vertex 



A. I. 



Prothoracic suture 



B.III.i. 



Vertical bristles 



A.I.4. 



Proboscis 



A.VIII.3. 



Vertical orbit 



A. 1. 7. 



Pteropleura 



B.III.3. 



Vertical triangle 



A. I.3. 



Pubescence 



E. 



Vibrissae 



A.VIII.2. 



Pubescent 



A.IV.6. 



X=Cross-vein of the 



wing C.II.5 



Pulvilli 



C.I.11. 







