864 PROCEEDINGS OF THE NATIONAL MUSEUM. 



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GELECHIA BASQUELLA Chambers. 



Oecophora basqueUu Chambers, Can. P^nt., YII, p. 92. 



Gelechia hasquella Chambers, Can. Ent., VII, 1875, p. 124. — Busck, Dyar's List 



Amer. Lep., No. 5729, 1908. 

 Gelechia {f) basqnella Chambers, Bull. U. S. Geol. Snrv., IV, 1878, pp. 87, 142. 

 Gelechia {Bryothropha .^) hasijiwlht Walsingham, Trans. Am. Ent. Soc. Phila., X, 



1882, p. 178. 

 Gelechia hasquella Riley, fSniith's List Lej). Bor. Am., No. 5329, 189L — A\'alsing- 



HAM, Proc. ZooL Soc. Lond., 1897, p. 75. 

 Gelechia costipunctella Moschler, Abhand. d. Senckenh. naturf. Ges., XXI, 1889, 



p. 334.— Walsingham, Proc. ZqoI. Soc. Lond., 1892, p. 519. 



Chamber.s' type is in the Museum of Comparative Zoology, Cam- 

 bridg-e, and is identical with specimens in Professor Fernald's collec- 

 tion and in Dr. \\'illiani Dietz's collection, named by Lord Walsingham, j 

 who recorded this species from the West Indies and found the syn- ' 

 onymy with Moschler's costipunctella. 



I have collected this species at light in the District of Columbia 

 and found its foodplant and larva there; I have also takfjn specimens 

 in Kentucky, Key West, Florida, Porto Rico, and St. Thomas, West 

 Indies. In the National Museum are, besides these specimens, others n 

 from Kansas, Iowa, and Texas. I 



The species has veins 3 and 4 in the fore wings stalked, but agree 

 otherwise with the definition of the present genus, and seems close to 

 the three foregoing species. Veins 6 and 7 in hindwings are stalked. 



Foodplant. — Cassia chain aecrista. 



The larva is when full-grown about 10 mm. long, with head and 

 thoracic shield and feet shining black and with the three thoracic seg- 

 ments, except anterior part of the third joint, deep purplish red; the 

 rest of the bod}^ is green, with very small, deep black tubercles emit- , 

 ting short dark hairs. 



Dr. D^^ar has kindl}' drawn up the following technical description: 



Larva. — Head rounded, bilol)ed, full, oblique and retracted; mouth projecting; the 

 labium and spinneret prominent; clypeus high, triangular, antenna; small; shining 

 black, labium, and epistoma pale; width, .6 mm. Body cylindrical, normal; joints 2 to 

 3 and 12 to 13 tapering; thoracic feet distinct, the joints black ringed; abdominal feet 

 slender, rather small, normal, the crochets in a complete ring about the small, circular 

 planta; cervical shield large, transverse, rounded on the posterior corners, shining 

 black, cut by a tine, faint, pale dorsal line; joints 2 and 3 entirely dark vinous except 

 the neck in front of the cervical shield; joint 4 in the incisure in front and in a broad 

 band on the posterior third of the same dark vinous, extending even on the venter. 

 The white area thus formed on the anterior part of joint 4 on the otherwise uniformly 

 red thorax appears irregulaily edged and lumpy. Rest of body whitish, immaculate, ; 

 greenish from the blood. Tubercles small, round, black but distinct, bearing short, 

 stiff, dark sette. On the thorax tubercles ia and ib are separate, iia and iib, iv and v, 

 united in pairs. On joint 3 the tubercle plates are large of ib, iia -f iib and iv + v, but 

 on joint 3 they are small, and the paired tubercles stand separate though contiguous; \ 

 on the prothorax the jjrespiraculai- and subventral tubercles are large. On the abdo- ' 

 men tubercle i is dorsad and cei)halad to ii, iii is near to the spiracle, above it, iv and 



