304 HARRISON G. DYAR. 



IVeiiiatii!<» liiteoter$;iini NDrton. 



Larva. — Head shining l>lac-k;, sutures of mouth pale; width .85 mm. Feet on 

 joints 6-11 and 13; anal pronjis black. Body shining green, yellowish subven- 

 trally and on the legs; segments obscurely annulate, all minutely pilose, but no 

 distinct tubercles; a blackish subdorsal shade-band and also blackish on the two 

 parts of the subventral ridge. Thoi-acic feet and anal plate shaded with dusky 

 black ; a Tnedio-ventral series of black patc-hes. 



Last stage. — Head shining dark vinous, eye black ; minutely pilose ; width 1.1 

 mm. Body shining, sordid greenish, rather dark, shaded more or less witb vinous, 

 especially subventrally ; segments obscurely annulate, minutely pilose; dorsal 

 vessel a dark band ; the subventral ridges show as blackish elevations. Thoracic- 

 feet partly, anal plate and prongs largely black. 



A female from hybernating pupa was named '^ Amman roiieiiiaina 

 Inteotenjitm" by Mr. iNIarlatt ; a ])air, male and female, from the 

 same batch of larvie, but which emerged during the same season, 

 were designated " Pteromis n. sp., near latlfai^cdatnn Cress," This 

 must be simply a case of seasonal dimorphism. 



Gregarious edge-eaters on alder {^Aln.ut<), Keene Valley, N. Y. 



Neinatiis latirasciatus Cresson. 



Larva. — Head vinous brown, dotted with brown over the vertex, eye black : 

 width 1.6 mm. Body purplish vinous tinted, a metallic red-green shade over the 

 dorsum, partly produced by the food showing by transparency ; segments indis- 

 tinctly 6-annulate, shining, a lateral black shade band, scarcely noticeable against 

 the metallic shade, supplemented by black patches on the folds around the 

 s])iracles, subventrally and on the bases of the legs, the latter distinct against 

 the pale pur])lish subventral color. Feet all pale, yellowish tinged; abdominal 

 on joints 6-11, 13, small; anal plate and short prongs black; setase minute, 

 seen with a lens. 



Allied to the preceding ; solitary or })artly gregarious on white 

 birch (i>. papyrij'era) at Keene Valley, New York. Imago the same 

 season. 



Xeinatiiisi centralis Say. 



fif/f/s (see " Insect Life," i, 36). — In large clusters of flat, semicircular saw-cuts 

 under the lower epidermis, 1x2 mm. in size. 



First stage. — Head round, shining black ; width 0.55 mm. Thoracic feet long, 

 spreading, black except at the joints ; segments indistinctly 4-annulate, abdominal 

 feet small, on joints 6-11, 13. Body slightly shining, blackish green, subtrans- 

 lucent ; anal prongs concolorous. 



Second stage. — As befcn-e. Head .75 mm. wide. Body smooth, greenish black, 

 anal jtrongs black. 



Third stage. — Head shining greenish black ; width 1.0 mm. ; eyes and jaws 

 black. Body scarcely annulate, smooth, shining, obscure blackish olive, anal 

 fork black tipped. Thoracic feet blackish, marked with black. Body unicolorous, 

 immaculate, or the orange spots of the next stage i>n.rtly present (another l)rood). 



Fourth stage. — Head shining black, the front with four grooves and two dents 

 above the clypeus; sutures around the mouth brown ; width 1.4 mm. Thoracic 



