468 FR0CEEDING8 OF THE NATIONAL MUSEUM. vol.54. 



11. Scutellum n:ii-i-owly lobate in front, very narrowly separated trom praes- 



CLitum ; oedeagus slender, Inflated at base and strongly arched, thence be- 

 coming very slender and at apex acutely reflexed 36. Pentozoe Pierce. 



Scutellum convex, not lobate in front, more widely separated from praes- 

 cutum ; oedeagus slender, not greatly enlarged at base and obtusely 

 angulate, but acutely angulate at apex : 37. Pentozocera Pierce. 



Scutellinn broadly sinuately rounded in front, broadly separated from pra- 

 escutum ; oedeagus slightly rounded at base, acutely barbed at apex. 



38. Cyrtocaraxenos, new genus. 



12. Fifth and sixth antennal joints merely pectinate, elongate ; metapraescutura 



but little longer than scutellum 39. Delphacixenos, new genus. 



Fifth and sixth antennal joints normally flabellate; metapraescutum almost 

 twice as long as scutellum 40. Stenocranophilns Pierce. 



13. Parasite of A(7aWta— 41. Agalliapliagiis Pierce. 



Parasites of Epora 42. Colacina Westwood. 



Parasites of Platybrachys, female cephalothorax with narrow transverse 



slit ; thorax longer than head, gradually narrowed to base : sides of head 

 convex 42. Megalechthrus Perkins. 



28. Genus HALICTOPHAGUS Dale. 



1. H. curtisii Dale; host unknown; England. 



Dale (1841) records collecting specimens of males on and near the 

 Isle of Portland, England, June 16, July 15, and August 1, 1840. 



29. Genus TETTIGOXENOS Jeannel. 



Tettigoxenos Jeannel, 1913, Voyage de Ch. Alluaud et R. Jeannel en Afrique 

 Orientale (1911-1912) Insects Strepsipt^res, Paris, A. Schulz, pp. 1-8, 

 1 fig., pi. 1, April 23. 



The following description is a translation from the original, with 

 additions in brackets: 



Front excavated between the antennae: antennae T-jointed, with 

 last 5 laterally flabellate. Prothorax annular, narrow, not arcuate 

 in front. Elytra long, clavate. Wings with " 6 " [really 7] primary 

 veins; costal [subcostal], radial, medial and three anal; a detached 

 branch of radius and a detached branch in front of medius ; medius 

 not broken ; cubitus lacking. Metanotum strongly developed ; post- 

 lumbium membranous. Metasternum formed of two pieces entirely 

 separated on the median line. Legs short, tibiae flattened, tarsi 3- 

 iointed. Oedeagus strongly arcuate at base, reflexed in an acute 

 angle and very pointed at extremity. [This oedeagus is barbed as 

 in Cyrtocaraxenos but more arcuate at base.] 



Type of the genus. — Tettigoxenos cladoceras Jeannel, 1913, from 

 British East Africa. Hosts unknown. Female unknown. 



TETTIGOXENOS CLADOCERAS Jeannel. 



Tettigoxenos cladoceras Jeannel, 1913, Insects strepsipteres, pp. 1-8, pi. 1. 

 Host. — Unknown. Described from a male caught at light on the 

 l?iver Ramisi south of Mombasa, station No. 8, British East Africa, 

 November. 1911, and now in the Museum of Paris. 



