Sept. 1897.] Chapman : Pupa of (Eta Floridana. 127 



NOTES ON THE PUPA OF OETA FLORIDANA. 



PLATE VI. 



By T. a. Chapman, M. D, 



Length, 13 millimeters; width, 2^ millimeters. Tolerably uniform 

 width to the fourth abdominal segment, thence tapering finally to 

 extremity. 



Color. — Deep sepia, nearly black. A pale nankeen coloring in a 

 broad dorsal stripe, along all the abdominal segments, extending out- 

 wards as far as the anterior trapezoidal tubercles, and having a narrow 

 double line of the dark sepia or black color down its centre ; traces of a 

 similar coloring in a narrow supra and another infra-spiracular line. 



The same color surrounds the marginal tubercles and at pitted 

 markings in the situation of the third and fourth ventral prolegs. 



Similar color on the front of the headpiece and a narrow line on 

 each side of the prothorax and a broad patch in the centre of the meso- 

 thorax, ventral line of fifth and sixth abdominal segments also paler. 



Dehiscence is by complete removal of front headpiece, by splitting 

 down the back of the prothoracic segment and two-thirds of the meso- 

 thoracic. 



The antennae separate from wings two-thirds of the way down and 

 slightly from leg cases which also open a little at anterior ends ; they 

 remain attached together below and also to wings ; eye pieces remain 

 in situ. 



The two portions of prothorax somewhat separated from mesothorax, 

 but attached by delicate membrane, and show fine radiating structure 

 of first spiracle. (Plate VI, Fig. 3.) 



Structure. — There is no posterior headpiece ; the separated front 

 piece is roughly hexagonal, the two sides being hollowed to receive the 

 ends of the antennae ; and in the pale area here there are on each side 

 two spines or hairs (antennse-basal hairs?), the inner one curled at the 

 ends into a circle and a-half. In face piece the central portion above 

 has three hair points on each side and terminates in a rounded projec- 

 tion (labrum); beneath from each side are two rounded lappets (man- 

 dibles); these occupy about the central third of the face (Plate VI, Fig. i); 

 at the summit of the first pair of legs between the eyes and antennse is 

 a small separate portion (max. palp.). The maxillae, second legs and 

 antennae reach to the extremity of the wings close to the hind margin of 

 the fourth abdominal segment, to which they are fixed. 



