"147 



ialcato ; wliilr the aiitciiii;!' arc nearly always puctinati'd. ll is possililc llial 

 the species may infergradc with timsc of Eui^onia. 'V\\i- (iistindioiis arn 

 certainly somewhat artilicial. "^J^iio six^niis is ])riiici|iall_\ rf-strictr-d lo tlie 

 Pacific coast, tlic Ifss typical forms (lorafd and crocdilata) l)eing restricted to 

 the Atlantic coast. These two species are in many respects closely allied to 

 T. trimiguliferaria of the Pacific coast, so mucii so as not to warrant their 

 ticneric se])aration. 



Si/iiop.sis of the Species. 



A. Male antemipc sinii)le ; wini^s slijihtly aiii^ular: 



Creaiii-wliiti', with ;i Niiiglc ocliicoiis iil)li(iiiH lino cm the lore wiii^s T. lorata. 



Yellow, with a single brown ol)li(iiie line on (lii^ line wings '/'. rrocallatd. 



B. .Male antenna' pectinated; wings ot" male rounded, in I'eniale 



very angular : 



Deep jellow, with thiei; very large, brown, eostal spots: antenna' narrowly 



peclinateJ i'- IruiiKjiili/trdria. 



Whitish-yellow; fore wings with two bri>a(l dark lines; antenn:e pUnnose /'. roliirK/idria. 



C. Palpi long ; the species of various shades of i)ro\vn : 



Fawn-brown ; fore wings with two pale snbparallel lines T. paralkUaria. 



Dull orange; fore wings with the inner lines eurved ontward ; the outer more 



or less sinuous T. aiimnliiicaria. 



Fawn-brown ; larger than any of the preceding species; wings broa<l an<l w(01 



augulated T. arrinayia. 



Pale ochreous ; wings very falcate, with a slight angle between the apex and 

 the middle angle; a single, broad, outer, sinuous line, curved outward 

 before reaching the costa 1- (jr<itearia. 



The largest of all the species, the wings very falcate and angular, pale ochre- 

 ous, the anterior pair with three blackish snbparallel broad lines ; male 

 antenna" simple T.lruxaUata. 



W' iugs much less falcate and angular than in the other species of section C ; 

 fore wings with two black scalloped lines ; hind wings with a single 

 scalloped line ; male autennoe simple 1- agivtata. 



Tetkacis lorata Grote. Plate 12, fig. 41. 



Tetrads lorata Grote!!!, Can. Ent. 



4 <f and 2 9. — Body and wings nnit()rnily creain-wiiit<>. Palpi and 

 under side of the anteniux' ochreous. Wings unspotted, witli a single, dull, 

 ochreous, obhque, straight litu; extending Irom just l)eyond the middle ot the 

 inner edge to the costa, ending just before the apex ; hind wings with no line, 

 immaculate. Xo discal dots on either wings. Beneath innnaeulate, the l)an(l 

 uot re-appearing on the fi)re wing. 



Length of body, i, 0.60, 9, O.GO ; of (ore wang, <? , 0.85, 9, ?: expanse 

 of wings, 1.75 iuche-s. 



