16 PROCEEDINGS OP THE NATIONAL MUSEUM vol.70 



the inner ones are much larger and the outer ones sometimes entirely 

 wanting; on the side of each segment is a broad elevated surface 

 of the length of the segment ; on this elevation are two large pointed 

 spines, and sometimes several very small ones, forming a row, and 

 at the anterior portion of the elevation is a small, reddish, elliptical 

 tubercle upon which is located the abdominal spiracle (fig. aa) ; 

 the spiracular entrance and general color as in the thoracic spiracle 

 (fig. z) ; last segment is much narrower than the rest, with a pair 

 of large, black, shining, pointed, conical projections widely separated 

 and black at the tip only ; dorsally, between these two pairs of conical 

 projections, is a rounded, well-defined depression. 



Length, 12 mm. ; diameter of thorax, 2.9 mm ; diameter of abdo- 

 men, 2.5 mm. 



Falls Church, Va., April 19, 1919, in frass at the base of an old 

 decayed tree stump. Reared April 25, 1919, C. T. Greene, collector. 

 Great Falls, Va., April 12, 1924, in a rotten log of sycamore. Reared 

 April 22, 1924, C. T. Greene, collector. 



CHRYSOPILA QUADRATA Say 



Plate 3 



Pupa (fig. llf.). — Medium sized, subpolitus, yellowish red; thorax 

 very slightly wider than the abdomen. Head nearly round; an- 

 tennal capsules very small, pointed at apex, Ij^ing quite close to the 

 under side of the head, appearing like small ridges; above the 

 antennae, on the front of the head, are two small, rounded tubercles, 

 and just back of this pair are four small, similar ones in a trans- 

 verse row; on top of the head are two small bristles widely sepa- 

 . rated. Thorax about as broad as long; at the anterior median part, 

 along the suture, are two small, pear-shaped rugose areas, each hav- 

 ing two small bristles ; laterally of these areas, on the anterior angle, 

 is a prominent rugose tubercle upon which is situated the thoracic 

 spiracle (fig. l)h) ; this spiracle is very small, shining, reddish yel- 

 low with a sinuous entrance composed of small radiating, paired 

 slits; on dorsum, near the middle, are two pairs of short bristles, the 

 bristles of the posterior pair closer together; a narrow transverse 

 plate is present at the posterior end of thorax; it is rugose in the 

 middle and at each end of this rugosity are two short bristles; at 

 each anterior angle is a single bristle. Abdomen is composed of 

 eight segments of nearly equal length : each of the segments from 1 

 to T has a narrow transverse ridge near the basal edge; segment 1 

 has three bristles on each side of the dorsum; segments from 2 to 7 

 have a transverse, apical row of short, stout spines with a few longer 

 than the majority; segments 1 to 7 have on the side near the basal 

 angle a small rounded tubercle upon which is located a very small 



