PHYTODI.EXUS. I'JIiTODIJETOIDES. 221 



materially in the shorter basal segment whose spiracles are more 

 prominent in both sexes though especially so in the <$ , 



It is a very interesting and benelicial species, since the types of 

 both sexes, which Mr. E. Ernest Green has bred together at 

 Pundaluoya in Ceylon, emerged from larvae which had been 

 preying ectoparasitically upon those of the coffee pest, the 

 Tortricid Capua coffearia another female was also bred by him 

 at the same locality from the same host in March, 1903. I am 

 not aware that members of this genus have before been noticed 

 to be external parasites, though they have frequently been raised 

 from both Tortricid and other moths in Europe. 



Genus PHYTODIJETOIDES, gen. nov. 



GENOTYPE, P. megcera, sp. u. 



Body graceful and nearly smooth, neither strongly punctate nor 

 elongately pilose. Antennae as long as body, very slender and 

 filiform throughout, with the apical joints cylindrical and not 

 discrete. Notauli obsolete ; metathoracic costse entirely wanting ; 

 spiracles circular and very small. Scutelhun hardly convex and 

 always pale, with the frenum partly pale. Abdomen finely cori- 

 aceous, neither punctate nor impressed, the segments with pale 

 margins and the anus subcompressed ; hypopygium retracted ; 

 basal segment convex and not carinate ; terebra longer than half, 

 but not than the whole abdomen. Tibial calcaria elongate ; tarsal 

 claws not pectinate. Areolet broad and obliquely triangular, 

 emitting the recurrent nervure from its apical third;: first re- 

 current of lower wing strongly postfurcal. emitting the nervellus 

 from far above its centre, from about its upper fourth part. 

 Abdomen distinctly sessile ; areolet sessile ; inner cubital nervure 

 but slightly curved, with no nervelet ; eyes internally emarginate ; 

 clypeus convex and basally emarginate. 



Range. Assam. 



In its superficial facies this genus bears a very strong resem- 

 blance to PKytodicetiis, Grav. ; but differs materially in its simple 

 tarsal claws and metapleuraa, not entirely glabi-ous abdomen, and 

 in the disposition of the alar nervures. It appears to be some- 

 what related to Nadia, Tosq. (Mem. Soc. Ent. Belg. 1896, p. 337) 

 though the sculpture of the basal abdominal segmentwill instantly 

 distinguish it therefrom. I have seen but a single species. 



153. Phytodisetoides megsera, sp. n. 

 Chi'ysopimplftJlavipalpiS) Cam. MS. 



5 . A black species, with sparse flavous markings and most of 

 the legs red. Head immaculate, the face with long grey pilosity 

 and the palpi alone bright flavous. Antennce very slender, black, 



