NOTES ON BRITISH BRACONID^. 



287 



(6) 5. Basal segment longer than all the follow- 



ing ; head broad Wesmaelia. 



(5) 6. Basal segment not longer than following 

 together ; head of normal breadth. 

 (10) 7. Eadial cell very short, strongly arcuate 

 apically. 



(9) 8. Metathorax neither vertically truncate nor 



apically excavate Euphoeus. 



(8) 9. Metathorax vertically truncate and api- 

 cally excavate Perilitus. 



(7) 10. Eadial cell longer, narrower, reaching 



nearer apex of wing .... Microctonus. 



The first three genera are very rare ; of the single species, 

 clavicornis, Wesm., of the first, only two specimens (from Belgium 

 and England) are known. Streblocera jDossesses two, S.fiilviceps, 

 Westw., and S. macroscapa, Euthe, which is distinguished from 

 the former by the female having the antennae once elbowed, 

 and the male not at all, in place of twice in both sexes ; some 

 three examples of the first and five of the second are known. 

 Wesmaelia cremasta, Marsh., has been found only at Bielsa 

 in the Pyrenees, in Devonshire, and Germany; but several 

 American species are known. 



(12) 13. 



EuPHORUs, Nees. 



Basal abdominal segment hardly longer 

 than broad ...... 



Basal abdominal segment fully thrice 

 longer than broad. 



Notauli punctate and entire. 



Antennae 16-jointed; male unknown 



Antennae of female more than 16- jointed 

 (except rarely in E. picipes). 



Mesonotum punctate. 



Antennae of female 16- to 18-jointed, of 

 male 19- to 21-3ointed .... 



Antennae more than 18-jointed, of male 

 23- to 27-jointed. 



Spiracular tubercles of basal segment in- 

 distinct ...... 



Spiracular tubercles of basal segment pro- 

 minent ...... 



Mesonotum glabrous. 



Basal abscissa of radius short and puncti- 

 form ....... 



Basal abscissa of radius wanting {Har- 

 keria, Cam.*) ..... 



mitis, Hal. 

 shnilis, Curt. 



picipes, Hal. 



pallidipes, Curt. 

 tuberculifer, Msh. 



coactus, Marsh. 

 accinctus, Hal. 



* Cameron's new genus, HarJceria (Ann. Nat. Hist. 1900, p. 537), is 

 certainly not distinct from Eupliorus, Nees, and the only differential point 

 I can trace is the shape of the alar stigma, which is said to be linear, elon- 

 gate, and narrow; whereas in the latter it is large and triangular. But the 



