250 



William T. M. Forbes 



17. ENDROSIS Hiibner 



Palpi long, upturned, smooth; second and third segments equal; antennae 

 with large scape bearing a pecten. Fore wing with all veins present; lanceolate, 

 normal. Hind wing with M 3 lost and M 2 connate or short-stalked with CUi; Rj 

 as strong as any vein, but close to base (fig. 145). 



The genus seems transitional to the Blastobasidae, and in the past has also been 

 placed in the Elachistidas. The larva appears to be as in the Blastobasidae. 



1. E. lacteella Schifferm tiller. Dirty white, mottled and dusted with fuscous. 

 Head, thorax, and extreme base of fore wing pure white, followed by a broad 

 fuscous band. Base, middle, and apex of costa also blackish. Three vague 

 blackish dots on disc, — in middle and at end of cell, and below and before the 

 first in fold. 15-18 mm. 



A general household insect, feeding on fruit, fungi, meal, etc., Caterpillar yellowish 

 white with yellow -brown head and cervical shield. Injurious in Europe and on 

 the west coast of the United States. Only sporadic specimens have been reported 

 from the East. 



Family 20. XYLORICTID.ffi 



{Stenomidce,; Uzuchidce) 

 Head smooth. Palpi smooth and upturned to vertex or beyond, with 

 second joint slightly thicker and squarely cut off. Thorax smooth- 

 scaled ; hind tibiae with loose hair. Fore wing typically with all radials 

 preserved (one lost in Ptochoryctis and Menesta), R 5 often free, 

 running either to costa or to outer margin. Cu x and Cu 2 often stalked ; 

 completely united in Menesta ; in the typical group widely separated ; 

 M 3 in some forms from the base of their stalk. The other veins all 

 present and free. 1st A strongly developed. Hind wing with Sc and 



Figs. 152-154. xylorictid^e 

 152, Stenoma algidella, venation; 153, Stenoma humilis, venation; 154, Menesta 

 melanella, venation 



R connected by a more or less distinct cross vein (R x ) ; R and M x 

 long-stalked, the other veins normal ; one medial lost in Menesta. 

 Fore wing normally much more than twice as long as wide; shorter in 

 Menesta and Setiostoma. Hind wing typically much broader, some- 

 times more than twice as broad. 



