139 



18. XTLESTHIA Clemens 



Head wholly rough, palpi with third joint very thin, half as long as second; 

 second joint with a large brush of hair as in Amydria. Antennae two-thirds as 

 long as fore wings, as in Tinea, with a very heavy pecten. Wings as in Amydria, 

 narrower, with rough scaling and scale tufts. 



1. X. pruniramiella Clemens. Dull pale brown, usually with paired paler striae 

 and the scales largely black-tipped; sometimes nearly immaculate or with a darker 

 shade through the middle. Fringe barred in var. kearfottella Dietz. 12-15 mm. 

 (congeminatella Zeller, clemensella Chambers). 



The moth is locally common from May to August. The larva is dirty white, with 

 a brown head and cervical shield. It mines in woody excrescences on plum. The 

 cocoon is made of frass and is placed near the mouth of the burrow. April and 

 May. 



New Hampshire to Georgia, Kansas and Texas. New York : Ithaca, West Farms. 



19. AMYDRIA Clemens 



(Myrmecozela Meyrick, in part) 



Head rough, though less so than usual in the Tineidae, with short flattened hair. 

 Antenna? whorled with scales, half as long as fore wings, pecten absent. Tongue 

 and maxillary palpi very small; the latter porrect; labial palpi upturned to vertex 

 with a spherical tuft on the second segment; the third segment about as long, and 

 slender. Venation like that of Tinea. 



Almost all the moths are identical in 

 pattern, and are light straw yellow 

 with brownish markings and reticula- 

 tion; but they differ widely in the male 



genitalia. The figures show the outline j+^j Y 99 ^J " ' 10 



of the valve as shown by denuding. 



/. Head rougher, third segment of FIGS. 99-100. EIGHT VALVES OF MALE 

 palpi compressed laterally (Amydria). GENITALIA OF . SPECIES OF AMYDRIA 



1. A. effrenatella Clemens. Fuscous 99, A. effrenatella; 100, A. brevipen- 

 shading usually forming a discal patch nella (from co-type in the United States 

 extending obliquely down and basad into National Museum) 



the fold, a shade in the fold near the 



base, spots about the outer margin, and a shade along the inner margin. 15-25 mm. 



The male uncus ends in two long spines, the valve has a moderate spine on the 

 ventral edge (fig. 99). 



June and August. 



Massachusetts and Parry Sound, Ontario to New Jersey, Missouri and Pennsyl- 

 vania. New York : Ithaca. 



2. A. brevipennella Dietz. Tuft on palpus smaller than in A. effrenatella; moth 

 usually paler with light reticulation, leaving the marginal spots and discal patch 

 strongly contrasting; sometimes differing from small specimens of A. effrenatella 

 only in structure. 14-15 mm. 



The male is easily distinguished by the absence of the spine on the lower edge 

 of the valve. The uncus is only slightly cleft (fig. 100). A blackish variety of 

 this species is known. 



Maryland; District of Columbia; Virginia. 



//. Head smoother; vestiturc of fronl less prominent; third segment of palpus 

 flattened from front to back (Dysmasia Herrich-Schceffer). 



3. A. dyarella Dietz. Gray to dark fuscous brown, inner margin with distincter 



