OF WASHINGTON. 293 



Me., August, 1872." Both specimens are in bad condition and 

 are covered with a chalk-like deposit and bits of spider's silk. 



9. Polysphincta (Zaglyptusj koebelei n. sp. 



Female. Length, 8 mm. ; expanse, n mm. Resembles quite strongly 

 P. (Zatypota) strigis, except in the main structural character that the 

 cubital cross-vein is plainly represented by a short stump, just proximad 

 of the angle in the cubital. The subparallel metascutellar carinae are also 

 lacking, this sclerite being marked only by a delicate median longitudinal 

 impression which is lacking on the apical half. The plan of coloration is 

 the same, but the following differences maybe noted: hind coxae black 

 at base; all other crural sclerites uniform honey-yellow; mesonotum of 

 a more uniform and lighter honey-yellow; metascutum honey-yellow. 



Described from one female specimen received from A. Koebele, 

 and labelled " Santa Cruz Mountains, Calif." Upon the tag 

 with the specimen is the shrivelled body of a spider upon which 

 it is fair to presume that the parasitic larva had been feeding, the 

 more especially since the spider's abdomen has been destroyed. 

 Attached to the same pin is what is evidently the cocoon of the 

 parasite. It is 7.5 mm. long and 3.8 mm. wide, is rather loosely 

 spun (so as to be translucent) of light brown silk. The spider 

 has been determined from its remains by Dr. Marx as Epeira 

 strix or E. scolopetaria. 



Other references to the interesting external parasites of the 

 Polysphincta group will be found under the head of u European 

 Parasites." Still others will be found in the original note in In 

 sect Life, Volume I, p 43. It was supposed at the time that this 

 was the first American record of an external spider parasite, but 

 Mr. Schwarz has recently called my attention to a note in the 

 Proceedings of the Boston Society of Natural History for 1871, 

 Volume XIV, p. 388, which reads: " Mr. F. G. Sanborn re 

 ported a recent capture of a spider of the genus Lycosa ( ?) upon 

 which was a parasitic larva apparently dipterous." 



10. Pimpla rufopectus Cresson. Trans. Am. Ent. Soc. Ill, p. 148. 



Three female specimens reared from spider's egg-bag (proba 

 bly Epeirid), Alameda county, Cal., June 10, 1887, by A. Koe 

 bele. (See Insect Life, Vol. Ill, p. 461.) Also reared by W. 

 H. Patton in Connecticut, in May, from the cocoon of an Epeirid 

 spider. Also two females reared in the District of Columbia by 

 O. Heidemann. Three female specimens reared from an egg- 

 bag of Argiope riparia^ February 22, 1889. Received from H. 

 C. Wells, Short Hills, N. J. (See Insect Life, Vol. I, p. 324, 

 where it is named P. inquisitor.} This is also the species re 

 ferred to by Dr. Burt G. Wilder in the Proceedings of the A. A. 

 A. S. for 1873, p. 257, and also in a popular article in Harpers' 



