tMOV 28 1888 



Kansas University Quarterly. 



Vol. II. OCTOBER, 1S93. No. 2. 



The Sclerites of the Head of Danais arch- 



ERRATA. 



p. 55, at top, for: see la, read, see lb. P. 55, midway, for: con- 

 tinuity of the mandibles with the labral sclerite. When present—, 

 read, continuity of these processes with the labral sclerite. When 

 the mandibles are present — . 



■ Eyes. 



Of the fixed parts of the head of archippus the compound eyes are 

 conspicuously large, each one constituting about one-third of the 

 head (see eye in fig. 11, Plate II). There are no ocelli. 



Clypeus. « 



The rounding, tumid clypeus makes up the larger part of the front 

 aspect of the head (see cl in fig. 11, Plate II). The clypeus ex- 

 tends upward to the antennary fossae, and as a short, broad tongue 

 between them to a suture running transversely from fossa to fossa. 

 This suture is plainly apparent in simply fdenuded specimens or in 

 |bleached specimens. In this point, as well as in a few others, my 



*Kellogg, Vernon L., Notes on the Elementary Comparative Anatomy of Insects. 1892, 

 Lawrence, Kas. 



tRubtilng with a soft, pointed brush, assisted by gentle manipulation with a needle or 

 delicate forceps will soon denude the head of its scales. 



tl find the most satisfactory method of bleaching the heads to be this: boil for a few 

 mintUes iu potassium hydrate until the eyes become light-brown: then wash, and transfer 

 to eau de Labarraqiie. in which fluid the head will soon reach the desired clearness. 



(51) KAN. UNTV. QtTAR. VOL. 11, NQ, 2, OCT., 1893. 



