104 ENTOMOLOGICAL SOCIETY 



NOTE ON A CALIFORNIAN FRUIT WORM. 

 By HARRISON G. DYAR. 



Dried fruit, infested with " worms," which proved to be lepi- 

 dopterous larvae, were received at the Department of Agriculture 

 from Santa Clara County, California. The resulting moths were 

 Vitula serraiilineella Ragonot. Their larvae show some pecu 

 liar points of structure. 



Egg. Elliptical, flattened above and below, symmetrical, 

 rounded ; soft-skinned, coarsely granularly shagreened ; some 

 what translucent, pale yellowish or wood color. Size about 

 .6 x .4 x .3 mm. 



Larva. Head rounded bilobed, the vertex retracted in joint 2, 

 somewhat flattened before and erect ; clypeus not reaching the 

 membranous vertical triangle ; red-brown, sutures of clypeus and 

 mouth darker, ocelli black. Body cylindrical, tapering slightly 

 toward the ends, segments dorsally 2-annulate ; feet normal, 

 small, pale, the abdominal ones with crochets in an ellipse. 

 Cervical shield distinct, large, transverse, luteous translucent, 

 brown at the marginal tubercles. Anal plate darker luteous. 

 Body whitish, rather opaque, a red dorsal shade at maturity. 

 Tubercles small, dark brown ; iib of joint 3 and iii of 12 and all 

 those of joint 13 enlarged. On joint 13 dorsally there is a single 

 medio-dorsal shield carrying the tubercles ii of each side ; a lat 

 eral shield bears i and iii, which are closely approximated ; on 

 joint 12, tubercle ii is a little dorsad to i; on the central seg 

 ments i and ii are in line, iv -f v ; on the thorax ia -f ib, iia -[- iib, 

 iv -f- v. The enlarged tubercles iib of 3 and iii of 12 have the 

 hair in a large, clear space around which the tubercle shield 

 forms a ring; these hairs must be specially movable. Seta? 

 rather long, brown. Spiracles brown, those of joint 12 larger 

 than the others. Anal feet with a brown leg shield. 



The following paper, by Mr. Banks, was then read by title : 



SECONDARY SEXUAL CHARACTERS IN SPIDERS. 

 By NATHAN BANKS. 



That differences in size exist between. the sexes of spiders has 

 long been known, and often commented upon. Yet it does not 

 apply to all spiders ; with the Theraphosidae, Pholcidas, Dysder- 

 idae, Drassidae, Clubionidae, Agalenidae and Dictynidae there is 

 little difference in size between the sexes. Usually the abdomen 

 of the male is more slender than that of the female, but the 

 cephalothorax is about as large. In the Agalenidae the male is 

 frequently larger and stouter than the female. In many Theri- 



