124 Mr. F. P. Dodd's Notes upon some remar'ka'ble 



DiPTERA. 



No. 11. — In the crevices of the leaf nests of our interest- 

 ing green ant, Q^cophylla vircsccns, Fabr., a pretty jumping 

 spider takes shelter and breeds. Generally it selects the 

 nests which are partly abandoned. I was carding some of 

 these spiders, but one ^ being rather bulky, seemingly Avith 

 eggs, I kept her in a glass-bottomed box to deposit then). 

 One morning I found the spider dead, with abdomen 

 strangely small and shrunken, and, instead of a mass of 

 eggs, I noticed a peculiar dark object in a thin web the 

 spider had spun. Later in the day the object became 

 much lighter and I made it out to be a short thick pupa of 

 some kind, not unlike that of a butterfly. Finally in about 

 twelve days' time the pupa produced the dipteron now 

 shown. The exact dates, and box carefully preserved with 

 pupal shell in the web, were lost in the storm already 

 alluded to, owing to the destruction of the house I lived in, 

 when various entomological specimens of interest were 

 destroyed. 



[No. 11 is borne by an Attid spider kindly identified by 

 my friend Dr. G. W. Peckham, of Milwaukee, as Cvsmopliasis 

 hit[eniata, Keys. Dr. Peckham informs me that the ^ = 

 Solara hitcvniata, and the $ = Scleapliora rulra, in Koch and 

 Keyserling's " Arachn. Austral.," p. 13G5, and p. 1374. 

 The specimen, which is dated Nov. 15, 1902, has a 

 shrivelled abdomen, and bears the word " Dipteron," so 

 it is certainly the host of the Cyrtid fly, Ogcodes doddi, 

 Wandolleck, sent with it. The Ogcodes bears the locality 

 and date, Nov. 20, 1902. (See Appendix, p. 131.) 



No. 11 is also borne by two more sjiiders of the same 

 species, dated Nov. 11, 1902.] 



