104 ENTOMOLOGICAL NEWS [April, '22 



Scape smooth, as long as the eye, with a single long bristle near the 

 base, representing the pecten. Palpi with second joint smooth, but con- 

 siderably thickened with scales, third noticeably longer, smooth and 

 acute. Fore wing normal, as in Duz'ita and Aproacrcina, with Ml well 

 separated from K4+5. Hind wing with produced apex as in Apro- 

 inTcina; R and Ml stalked a third way to apex, .1/3 and Cul hardly 

 stalked, and M2 somewhat approximate. Penis a sharply curved spine, 

 articulated at the base. 



Dark smoky gray, slightly shining, under a lens with pale scale-bases 

 arid dark tips. Palpi concolorous ; legs blackish, contrastingly ringed 

 with clay color, the hind tibia with pale bands at both pairs of spurs ; 

 the hind femur and inner face of tibia and tarsus contrastingly pale. 



Fore wing with pale spots three-quarter way out on costa and inner 

 margin, the costal one much larger, and with an obscure black ante- 

 median spot in the fold, followed by some pale scales. Hind wing 

 gray, paler. Wing expanse 11 mm. 



Uphill Brook, Mt. Marcy trail, Adirondack^, New York, July 

 10, 1918, type. Peru, Ad'irondacks, New York, June 8, 1916, 

 4 paratypes. Cornell U. type No. 519. 



The Mt. Marcy specimen is fresher than the others in spite 

 of its late date, but this is doubtless on account of the high 

 altitude (3200 ft.). This species is the first really North Amer- 

 ican Gelechiid with a pecten on the antenna, as the genera 

 Siiotroga and Pectinophora are introductions from the Old 

 World. A couple of European species of Aproacrcina (.-Ina- 

 campsis) are closely similar, but I have seen no specimens of 

 any of them with a pecten, and all five of my specimens of 

 tahawisella have preserved it. 



The University of Michigan- Williamson Expedition to Brazil. 



The expedition left New York on December 15, 1921, as forecast 

 in the NEWS for January, page 11. From letters from Mr. Jesse H. 

 Williamson to members of his family we are enabled to give the 

 following outline of the progress made. On reaching Para they took 

 steamer up the Amazon to Manaos, arriving there on January 13. Here 

 they saw Dr. Rusby, of the Mulford Exploration, on his return journey 

 to New York (see the March NEWS, page 91), and Herr Fassl, the 

 well-known collector of insects. On the 14th they left Manaos by 

 steamer and proceeded to and up the Rio Madeira, collecting as the 

 stops of the vessel permitted, and disembarked at Porto Velho, 

 "Brazil's third largest city in the Amazon basin," January 21. Here 

 they "secured fine quarters in Hotel Brazil connecting rooms with 

 electric lights, shower baths, cold drinks (iced) of all kinds available, 

 etc., at about $1.75 per day each." At last writing. February 9, they 

 were still at Porto Velho. Showers and cloudy weather had been 

 frequent, the temperture about 78 F., altitude 60 meters, latitude 

 8 46' South, longitude 63 55' West. 



From Porto Velho several trips into the surrounding country had 

 been made, that of two days by motor car on the Madeira-Mamore 

 Railway to Guajara, its present terminus, some 350 kilometers, being 

 the longest. 



