192 KIPKXING OF SKFJ) IN (iXK'JUM. 



I'uAitsoN, H. H. W. tl'Jlo)— 



Notes on tlie inorpholoy;y of coitniii sti uctuifs coiKcriifd in tln> 

 repi-oduction of the Genus Gnet.uii. — Tkuis. o/ flic JAnn. 

 S(jc., viii. 

 Skwaim), a. C. (1912)— 



A petrified Williiiinsoiiia from Scotland. — 27///. Trans. L'tn/. Sue, 

 B. cciii. 

 SYKiis, jM. G. (1912)— 



Tho aiiatoniy and moipliolo^y of the leaves and inflorescences of 

 ]]'(Jtrifscliia iiiiiaJiilis. — I'liil. Tnnis. ]i. Idni. Soc, cci. 

 Tiioi.AV. M. G. (Sykk8, M. G.) (1911)— 



The female inflorescence and ovulos of (,'iicfinti iifiica num. — 

 ■Inn. of Hot. XXV. 

 TiioDAY, M. G. (Sykes. M. G.> a'id Behimdok, K. M. (1912)— 



The infloj-escene(>s and flowers of ICphedra. — Ann. of But., xxvi. 

 WiELAND, G. R. (1906)— 



American i^ossil Cycads. — ('(irncfjic //i^^.. Ft. 1. 



WlELANO, G. 1{. (1911)— 



On the WiUiamsonia Trilie. — Aincf. Ji.urn. of Set., xxxii. 



Wl ELAND, G. R. (1911)— 



Further notes on seed stiiutnre. — Anwr. Joiirn. of Sci., xxxii. 

 WiEl.AND, G. R. (1912)-- 



On the smaller flowiM-hnds of Cyeadeoidea.— .i»(r/-. Joiirn. of Sri.. 

 xxxiii. 



Wl ELAND. G. R. (191(j)— 



American Fo.ssil Cycads. — Carnvu'ir Inst., PL. 2. 



A NOTE OX DASYCHIRA KXTORTA AX]) ITS 

 LEPIJ)()PTER()TTS PAILVSITE. 



By C P. VAN DEE, Merwe. 



ho rem iiicnt Entomologist , Durhan . 



lioul Jul, I 15, in'jo. 



TJio caterpillars of DasjjcJiini crtorfa haxe been found 

 in J)ur})aii to feed on tlie foliaj^'e of the native fi<<' tree {Ficu.'< 

 no tdh'tm !.■<). Tliey feed at nio-jit, and in tlie daytime rest in 

 clusters on the tree trunks. Api)arently they always return 

 to their particular resting-places, Avhich become marked by 

 their cast skins and the suspended cocoons of hymenopterous 

 parasites. 



On most of the Dasycliira caterpillars tiny iepidopterous 

 LuA-ae about 2 mm. long can be seen, clinging* to the hairs 

 or resting close against the body of the caterpillai-. As many 

 as six larvae have been found on one caterpillar. In the 

 breeding cages it has been obserA'ed that the lam^ae leave 

 the dead caterpillars and seek li^'ing f)nes. The eggs from 

 which these lar\-ae are hatched liaA'e been found on the cast 

 skins close by the clusters of caterpillars on the tree trunks. 



Last year (1019) the Dasycliira caterpillars were obserA-ed 

 on the trees during May, and during Juiie they Avere found 

 to leaA-e the trees, and crawl away in search of suitable hiding- 

 places to spin their cocoons, whicli ]daces they usually find 

 in crevices and corners, behind stones, on Avails, under 

 eaA'es. etc. 



