No. 2305. ON SOME FOREST LEPIDOPTERA—HEINRICH. 85 



I to 7. Body setae normal; tubercles moderate; lib of m.eso-tliorax 

 and III of 8th abdominal segment surrounded by a heavy, conspicuous 

 chitinized ring; prothorax with I la on the level of or a trifle higher 

 than la, lib twice as far caudad as Ila and farther from Ila than Ila 

 is from la; la, puncture z, lb and Ic in a line along the anterior margin 

 of the shield, puncture x absent, y directly caudad of la, z dorsad 

 and approximate to lb, slightly below the level of lib, lie farther 

 from lb or Ic than they are from each other, prespiracular shield 

 directly anterior and close to the spiracle, bearing only two setae. III 

 absent, V approximate and ventro-caudad of IV; meso and meta- 

 thorax with VI unisetose; proleg bearing abdominal segments with 



II on a level with or only slightly lower than /, /// directly over the 

 spiracle, IV and V closely approximiate, IV caudad to and very little 

 lower than V, setae VII triangularly grouped, equidistant; abdominal 

 8 with III, VI and the spiracle in a vertical line, VII bisetose, II 

 slightly higher than I; abdominal segment 9 with / somewhat nearer 

 to /// than to //; IV, V and VI closely approximate and triangularly 

 grouped, VII bisetose. 



Head spherical; nearly square in outline viewed from above, as 

 wide or a trifle wider than long; greatest width at middle of head; 

 incision of dorsal hind margin about one-fifth the width of the head; 

 distance between extremities of dorsal hind margin a little over one- 

 third the width of the head. Frons pentagonal, reaching nearly to 

 middle of head, a trifle longer than wide ; adfrontal ridges {ADFR) 

 parallel from lower limits of epistoma to point of juncture of tentorial 

 arms, thence converging in slightly curved lines to the longitudinal 

 ridge {LR) which is as long as frons; adfrontal sutures (ADFS) 

 straight, meeting longitudinal ridge half way between end of frons 

 and incision of dorsal hind margin. Projection of dorsal margin over 

 ventral about half the diameter of the head. 



Ocelli six with ///, IV and V in a straight line; /// and IV ap- 

 proximate; V and VI approximate. 



Epistoma normal. 



Frontal punctures (Fa) close together, anterior to frontal setae 

 (Fl); distance between punctures less than distance from puncture 

 (Fa) to setae (Fl); distance from seta Fl to seta Adfl nearly equal 

 to distance from Adfl to Adf2; Adf2 a little behind the beginning 

 of longitudinal ridge; puncture Adfa approximate to Ad.f2, between 

 Adfl and Adf2. 



Epicranium with the normal setae and punctures. Anterior 

 setae {Al, A2, A3) in a very slightly obtuse angle; A2 and A3 

 well separated; puncture {Aa) posterior to A2. Setae {PI and 

 Pa) and puncture {Pb) of posterior group just back of middle of 

 head; PI slightly back of the level of Adf2; P2 postero-dorsad of 

 PI; Pb between and equidistant from P/ nnd P2: A2 P1 and P2 



