332 * Natural History Bulletin. 



which it is capable. The abdomen is unwieldly in size and 

 the long caudal processes so often seen in this family are re- 

 duced to mere tubercles. The ambulatory bristles are weak. 

 The mouth parts are minute and it is to be regretted that the 

 scanty material does not permit of dissections which ought to 

 be made. Transformation to the pupal state takes place in 

 the cell of its host. The pupa is white in color, 7 mm. in 

 length, the posterior tarsi exceeding the tip of the abdomen. 

 The antenna are passed under the anterior and middle legs, 

 the tips meeting at the point of origin of the posterior tarsi. 

 The posterior legs are covered as far as this point by the 

 wing-pad. 



Two of these larvae were found in the cells of Dineutes 

 assimilis feeding on the pupae and sucking the juices. One of 

 these, perhaps an account of the partial decomposition of the 

 Dineutes pupa on which it it was originally feeding, consented 

 to complete its growth on a pupa of Tropistermis glabcj- which 

 I killed and opened for it. Taken on the first of September, 

 the change to pupa was made on the seventh, the perfect in- 

 sect appearing on the sixteenth. The larva had a curious 

 habit when disturbed of lifting the fore part of the body so 

 that all the feet were in the air — much after the attitude taken 

 by Sphinx larvae — and maintaining this position for some min- 

 utes. 



Scarites subterraneus Fab. Plate IX, Figs. 3 and 4. 



Color of larva, black above, excepting the side margins of 

 the metathorax and of the abdominal segfments which are of 

 a dirty white. Sides of abdomen white with a longitudinal 

 series of small brown spots. Legs brown. 



Form elongate, subcylindrical; length about 33 mm. 



Head about as wide as the prothorax, bristly, frontal mar- 

 gin tridentate. 



Eyes situated behind the antennae, composed of six ocelli, 

 in two transverse rows of three each. If there are other 

 ocelli I am unable to demonstrate them, as the details have to 

 be made out from the cast skin of the larva after pupation. 



