NO.1202. GENEEA OF THE ENCYRTINJi—ASHMEAD. 377 



49. RHYTIDOTHORAX Ashmead, new genus. 

 (Type, Rhytidothorax mai'latti Ashmead.) 



Allie 1 to PlicviiocUsGus Forster, but much less robust anil witli the 

 followiug structural differences : The wings are hyaline, the marginal 

 vein being' longer than the stiginal, while the costal cell in the hind 

 wings is long and narrow. The head is scarcely as wide as the thorax; 

 eyes pubescent; antennae rather long; the flagelluni subclavate, not 

 ringed with white; the funicle joints 2-6 transverse, tlie ])edicel obconi- 

 cal, three times as long as thick, or longer than the first joint of the 

 funicle. The head has the nsual thimble-like punctuation, but the 

 mesouotum is shagreened or rugnlose, especially anteriorly, while the 

 scutellum is more distinctly, although somewhat finely, shagreened. 



I. RHYTIDOTHORAX MARLATTI Ashmead, new species. 



Female. — Length, 1. 65 mm. Black; scutellum and abdomen aineons; 

 scape, the apical half of femora and all tibiiB and tarsi honey-yellow. 

 Tijpe.— Gat. ^o. 4742, IJ.S.N.M. (Ashmead collection.) 

 Habitat. — Kansas : Riley County. 



This interesting species was received many years ago from Mr. 0. L. 

 Marlatt. 



SO. TANAONEURA Howard. 

 1896. Tanaoneura Howard, Joiirn. Liiui. Soc. Loud. Zool., XXVI, p. 14G. 

 (Type, Tanaoneura ashmeadil Howard.) 



I. TANAONEURA ASHMEADII Howard. 



Tanaoneura ashmeadii Howard, Jonrn. Linn. Soc. Lend. Zool., XXVI, 1896, p. 

 147, female.— Dalla Tokrk, Cat. Hym., V, p. 230. 



Type in British Museum. 

 Habitat. — West Indies: Grenada. 



Bl. HEXACLADIA Ashnaead. 

 1891. Hexacladia Ashmead, Ins. Life, III, p. 456. 



{T jpe, Hexacladia fimitln I Ashmead.) 



I. HEXACLADIA SMITHII Ashmead. 



Hexacladia smithii Ashmead, Ins. Life, III, 1891, p. 4.56, female and male.— Dalla 

 Torre, Cat. Hym., V, p. 230. 



Type.— Cat. No. 4743, U.S.N.M. (Ashmead collection); also H. H. 

 Smith collection. 

 Habitat. — South America. 



S2. HOMALOTTLUS Mayr. 



1875. Homalotijlus Mayr, Verh. Zool. -hot. Ges. Wien, XXV, p. 752. 

 1875. ^o&r«HM.s Thomson, Hym. Skand., IV, pp. 116, 137. 



(Type, Enctjrtiis flaminius Dalmau.) 



