OSBORN AND BALL STUDIES OF NORTH AMERICAN JASSOIDEA. 5 I 



Agallia modesta n. sp. 



Form of constricta nearly but smaller, smaller and narrower than 

 4-pimctata, superior jjortion of front less dilated; el\tra much nar- 

 rower. Length, V 3. 75-4 mm. ; cT, 3 mm. 



Vertex narrow, rounding from the elevated posterior margin, giving 

 it the appearance of a crescentiform elevated ridge; margin behind 

 eye very narrow, nearly obsolete. Face narrower than in 4-punctata 

 or constricta, the outer angle of the genae farther from eye, more ob- 

 tuse. Front with the superior third widest at ba-e, from which it rapidly 

 and evenly narrows instead of being parallel-margined and abruptly nar- 

 rowing, remainder of front slightly narrower and longer than in 4- 

 pitnctata. Pronotum finely punctured, twice w;der than long, lateral 

 margin obsolete, humeral margin short, posterior margin straight, very 

 long, whole outline very nearly a semicircle as in cotistricta. YA > tra long 

 and narrow, similar t(j those of constricta; at rest they are folded at 

 an acute angle above; costal margin not convex, giving a wedge-shaped 

 appearance to the insect; \enation similar to 4-piinctata, apical cells 

 longer, entirely beyond tip of abdimien. 



Color: Light yellowish-brown with four round black spots located 

 as in 4-piinctata. Vertex and face light-\ ellowish, with a pair of large 

 rounded spots on the superior margin equidistant from each other and 

 eyes, a narrow margin around the ocelli and the antennal pits black, 

 a narrow median line on the vertex, one either side next eye, light 

 ferruginous, clypeus arid all of front except a narrow median stripe on 

 inferior half, and a spot near superior margin reddish-brown. Prono- 

 tum light-yellow with two round spots slightly farther apart than those 

 on the vertex and less than their own diameter from posterior margin, 

 black, an indistinct median line, two spots in the depression of the 

 anterior margin and sometimes a mark on the humeral margin, reddish- 

 brown. Elytra smoky and hyaline, nervures lighter; very dark exam- 

 ples may have the reddish-brown marking on the clypeus, front 

 and pronutum changed to a dark chestnut and the el\tra to a dark 

 smok) , the black spots on the back of the pronotum enlarged, and the 

 reddish-brown markings on the anterior margin localized into two 

 small approximate round dots. 



Genitalia: ?, ultimate ventral segment slightly longer than penulti- 

 mate, the sides parallel, posterior margin truncate, posterior part of 

 segment curved around base of ovipositor, ovipositor proportionatel) 

 longer and narrower than in 4punctata. c?, ultimate segment short, 



