218 C. B. HAEDENBERG. 



tance, but it may become a pest in the flower garden on some 

 of the leguminous ornamental plants. For the time being it 

 is effectively held in check by its parasites. 



10. Monda major Heylaerts. 



Monda major Heyl. C.R. Soc. Ent. Belg., vol. xxxiv, p. 182, 1891 ; 

 Jimod, Bull. Soc. Neuch. d. Sc. Nat., vol. xxvii, p. 249, 1899. 



This species has been reported by Junod as being abundant 

 at Delagoa, but I have thus far failed to find it in Natal. It 

 does not appear to be of economic importance. The food- 

 plant is given as Helichrysum parviflorum Klatt., which, 

 together with numerous other members of this genus, occurs 

 abundantly in Natal, so it is quite probable that Monda 

 major will be found here. 



The species has been described by Heylaerts from the male 

 only, while the Rev. Junod has described and figured the bag 

 and furnished us with some notes on the biology of this 

 species as follows : 



"La Monda major Heyl., que j'ai trouvee abondante sur cette 

 Composee, a nn fourreau spheriqiie forme de brindilles phis on moins 

 recouvertes et noyees dans un tissue de sole blanche. Celni dn male 

 parait moins garni de ce tissiie que celni de la femelle. J'ai cm 

 remarqner anssi que la chenille dn male se transformait en chrysalide 

 dans nn cocon interieur qn'il se faisait a la maniere de I'E. jnnodi. La 

 femelle apres son eclosion ne sort pas les trois premiers anneaux du 

 cocon. Elle reste dans son fourreau dont elle brise seulement I'ex- 

 tremite pour permettre an male de la feconder. 



" Un fait de mimotiqne interessant a signaler c'est que ces fourreaux 

 de femelle, si abnndamment revetns de sole grisatre, ressemblent ex- 

 tremement a certains bourgeons avortes et desseches de rHelichrysnm 

 parviflorum, et il faut avoir nn ceil exerce pour les en distinguer." 



The female and immature stages have not been described. 



Male Bag. — The full-grown bag of the male is about 

 12 mm. long by 7 mm. wide, the middle pai't spherical, with 

 the upper end, by which attached, pointed, and the lower 

 end somewhat flattened (text-fig. 22, d, e). It consists of an 

 oval case of silk, to which are attached small pieces of mid- 

 rib, and probably also of the flower-stalk of the food-plant. 



