504 rROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxvn. 



there is found a dorsal, submarg-inal fringe of very small crystalline, 

 coalesced rods, which overlie the gelatinous wax. From the thoracic 

 margins there issues a long, white pencil of cottony wax; these pro- 

 ject almost at right angles from the case and rest upon the underlying 

 ring of dark wax. From the median line of the caudal margin there 

 projects a third pencil similar in structure and position; these pencils 

 often are spiral in arrangement. Color of pupa-case, iridescent, or 

 shining black. Dorsum finely punctate; sutures distinct, the longi- 

 mcdial and thoraco-abdominal ones conspicuous, the latter sinuate; 

 abdominal keel distinct, ending caudad in the tubercled vasiform ori- 

 fice. There is no marginal rim, but the lateral wax tubes are evident; 

 crenulatious rather deep, broad, and rounded, the reentrant angles 

 acute, each crenulation minutel}" recrenulated. There are many small 

 dorsal pores. Among the striations which extend mesad from the 

 marginal crenulatious are from two to four irregular rows, mesad of 

 these on each side of case, extending caudad of thoraco-abdominal 

 suture is a longitudinal row containing four pores; laterad of the 

 anterior margin of the vasiform orifice is a pair; cephalad of the 

 thoraco-abdominal suture ttere is a transverse row of four, two on 

 each side of the dorsi-meson; cephalad of the meso- and the meta- 

 thoracic sutures there are two, one each side of the dorsi-meson; near 

 the latero-cephalic margin there is a pair on each side, and in line 

 with them arc four circular light spaces; scattered over the dorsum 

 are many smaller pores. When the pupa-case is cleared in caustic 

 potash many more pores become evident. 



Late pupa. — (Female dissected from case.) Body too distorted to 

 measure accurately. Abdomen deep yellow and containing two large, 

 orange-yellow visceral glands. Head and thorax darker colored, legs 

 white. Antennte: Segments 1 and 2 dark brownish yellow; segments 

 3 to 7, inclusive, white. Legs, ordinary; claws, 3, the middle one 

 more slender and longer than the other two. Segment 1, cup shaped, 

 broader than long; segment 2, pyriform, densely setose; segment 3, 

 long and slender, sub-cylindrical, enlarged near the basal end; at inser- 

 tion with segment 2, very slender; segments 4 to 7, inclusive, subequal 

 and slender; segment 7, sub-fusiform, notched on each side near apex; 

 segments 3 to 7, inclusive, closely ringed with minute hairs. Eyes 

 reniform, broad, and dark red. Genitalia ordinary. 



The pupa-case of this species agrees in the main with the lu-ief 

 description given by Cockerell, but as the author has secured other 

 stages it has been thought best to give a full description here. 



Collected from Quercus agrifolla^ together with A. coronatiis. It is 

 common wherever the author has found the accompanying species, and 

 from a general similarity the author has been led to believe that the 

 two species are nearly related, or that A. gelatinosus is a variety of A. 

 coTonatiis. 



