ASHMEAD : CLASSIFICATION OF THE CHALCID FLIES 283 



5. Labrum inconspicuous or hidden 7 



Labrum conspicuous. 



Abdomen conic-ovate Cleonymus Latreille (type Ichneumon depressus Fabr ). 



Abdomen subrotund ; antennae 12-jointed, with three ring-joints Micradelus Walker 



(type M. rotundus Walk.). 



6. Abdomen with the first and fifth segments the longest ; antennae 11-jointed Belonea Westwood 



(type B. australica Westw.). 

 Abdomen with the first segment longer than the three following, the third produced into a sharp tri- 

 angular point at the middle ; antennae 9-jointed Cameronella Dalla Torre, = Panthalis Cameron 



(type P. blackburnii Cam.). 



7. Abdomen oblong or long-ovate ; mesonotum with the furrows only slightly indicated anteriorly ; fifth 



abdominal segment nearly as long as the first four segments united, the second and the third to- 

 gether hardly longer than the fourth, the first and fourth subequal ; front wings maculate. 



Ptinobius Ashmead (type Chariiopus magnificus Ashm.). 



8. Winged 9 



Apterous. 



Abdomen ovate, ending in a long ovipositor ; antennae 13-jointed, with three ring-joints. 



Cea Haliday (type C. pulicaria Haliday). 



9. Abdomen conic-ovate, or conical, the terminal segment tubular, the ovipositor very long 10 



Abdomen as seen from above rotund, compressed or carinate beneath. 



Front wings hyaline, the stigmal vein hardly two thirds the length of the marginal, and a little 

 shorter than the postmarginal ; metathorax with lateral folds, the spiracles oval-elliptic. 



Tomicobia Ashmead (type T. tibialis Ashm.). 

 Abdomen conic-ovate, the segments subequal, the ovipositor not exserted. 



Front wings with two transverse bands or maculae ; pronotum transverse-quadrate, narrowed 



medially ; pedicel not lengthened Cheiropachys Westwood (type Sphex colon Linne). 



Front wings without bands or maculae ; pronotum transverse-quadrate, but not narrowed medially 



and well separated ; pedicel much lengthened Schizonotus Eatzeburg 



(type S. sieboldii Ratzeb.). 



10. Last two abdominal segments very long, tubular. Thaumasura Westwood (type T. terebrator Westw.). 

 Last five abdominal segments very slender, tubular. Solenura Westwood (type S. telescopica Westw.). 



11. Mesothoracic furrows complete 16 



Mesothoracic furrows incomplete, indicated only anteriorly. 



Pronotum short, narrowed medially 12 



Pronotum very long, conical 15 



12. Marginal vein not thickened 13 



Marginal vein thickened, shorter than the postmarginal. Zapachia Forster (type Z. spiloptera Forst.). 



13. Abdomen oval, hardly as long as the thorax, above depressed 14 



Abdomen conical, longer than the thorax, the segments after the first, which is the longest, subequal. 



Front wings tvith one transverse band, the stigmal club large Acrocormus Forster 



(type A. semifasciatus Thorns.). 

 Front wings ivithout a band, the stigmal club small. Caudonia Walker (type C. agylla Walk.). 



14. Front wings with a large, broad fuscous band beneath, the marginal and stigmal veins having a tri- 



angular hyaline streak within from the marginal vein ; stigmal vein long, subclavate, as long as the 



marginal ; fimicle joints 3 to 6 a little wider than long Brachycaudonia Ashmead g. nov. 



(type B. calif ornica Ashm.). 



