652 WILLIAM T. M. FORBES 



June and July. Larva in heads of Heliantlms in late May. Warts i and ii 

 approximate with one long and several short hairs, iii simple, iv+v a regular 

 wart, the wart behind it with several hairs. Warts black; two black lines on 

 dorsum of prothorax. Hairs white, spinulose. (This description is probably more 

 accurate than the one above.) 



Ontario ; Manitoba ; Colorado. 



2. A. ambrosias Murtfeldt. W 7 hite, more or less irregularly dusted with black, 

 with a more or less distinct luteous to brown streak through the middle of the 

 first feather, the feather above it and costal fringe white, with a heavy black 

 patch near base of first feather and a narrow one near tip; the brown streak 

 defined below with some black scales. Dorsal fringe of first feather dark gray, 

 cut with two or three paler bars. Notch edged with white, preceded by a strong 

 blackish shade, which is extended toward the inner margin by dark suffusion. 

 Hind wing gray, base of fringe somewhat yellower. 15 mm. (inqumatus, in part.) 



Late June: late August and September. Larva on Ambrosia, with barbed setae, 

 those of warts i and ii short and recurved; subprimaries near i and ii; warts 

 i and ii conical, brown, i with a tuft of long hair, with a black lenticle above it; 

 dorsal line yellow, faint, sides with V-shaped oblique stripes, pointing forward. 

 Pupa green with a brown dorsal stripe. 



Illinois; Missouri; Florida. 



Family 35. ORNEODID^E 

 (Alucitidse) 



Moderately slender moths, with the wings each divided into six 

 feathers; in our species, nearly to the base. Head prominent, scaled, 

 with ocelli and tongue; palpi long and rough-scaled; maxillary palpi 

 rudimentary. Each wing broad as a whole, but each feather linear, 

 much narrower than its fringes, and each with a single strong vein, 

 (these being: R, M^ M,, M 3 , Cu 1; Cu 2 or A). Female frenulum of 

 two bristles ; male with a scent-pocket in last feather. 



Egg rough, of flat type; larva rough and granulose (fig. 408), with 

 small head, held nearly horizontal; primary set* only; prespiracular 

 wart and subventral of prothorax each with two setge; subventral of 

 meso- and metathorax with one seta; prolegs with a complete circle 

 of uniordinal hooks. Spiracles circular. Pupa obtect, with Adelid 

 type of prothorax; maxillary palpi concealed; dorsal head-piece enor- 

 mous; seventh segment of abdomen immovable in both sexes. Dehis- 

 cence of macro type : with the antennae attached to the legs ; but the 

 dorsal head-piece coming away separately; appendages nearly reaching 

 tips of wings, second leg touching head, tips of third legs exposed; cre- 

 master with 10 or 12 recurved spines. Setge iii and iv distinct. 



1. ORNEODE8 Latreille 

 (Alucita, Curtis, and others 40 ) 



Characters of the family. Wings cleft nearly to the base. 



1. 0. montana Cockerell. Dull light gray, each feather barred with blackish; 

 with narrow white bands before and beyond each bar. 14 mm. (hexadactyla 

 of authors, not Linnaeus; huebn-eri Wallengren?) 



40 By the type-fixation rule, hexadactyla would become the type of Alucita as fixed by Curtis. 



