420 BOARD OF AGRICULTURE. [Pub. Doc. 



with light brick red. Head much longer than wide, nearly trun- 

 cate in front. The lateral lobes in a few specimens I have ex- 

 amined are a trifle longer than the tylus, but this seems to be an 

 exception ; outer margin of lateral lobes embrowned. Eyes very 

 dark brown ; ocelli minute, near occiput. First segment of an- 

 tennae very short, hardly reaching lateral margin of head ; second 

 segment slender, relatively short, but, little over three times as 

 long as first ; third segment about three-fourths as long as second ; 

 fourth segment nearly as long as second ; fifth segment longer 

 than third, but a little shorter than fourth ; all joints reddish or 

 pale brown. Rostrum stout, reaching upon, sometimes to, pos- 

 terior margin of hind coxse ; second segment the longest, third 

 and fourth of equal length, the latter dark reddish brown. Pro- 

 notum deeply indented at the sides, margined with a fine yellowish 

 white line, within which the puncturing is densely massed ; an- 

 teriorly on the lateral margins there are several minute teeth; 

 pronotal callosities obscure, thickly punctate outwardly. At the 

 humeral angles the punctures are massed into a reddish spot, the 

 angles being acute but not spinose. Scutellum sinuate, bare at 

 apex, which reaches to the membrane ; in nearly all specimens 

 examined there is a minute bald spot at each basal angle of 

 scutellum. Corium and embolium tinged with scarlet at their 

 junction with membrane, which is bronzed and bears a dark-green 

 marking at the tip. Under-surface pale yellowish, punctate with 

 red, and bearing a row of four minute dots on the median line and 

 two rows of similar dots laterally. Ventral spine very short, not 

 reaching hind coxtc. Legs rufous. 



Distribution. — Canada, Maine, Massachusetts, New York, 

 Illinois, Georgia, Dakota, Nebraska, Colorado, Mexico. 



The only species resembling P. modestus is tlie light 

 variety of P. serieventris^ which sometimes approaches the 

 darker forms of the former species. The deeply sinuate 

 humeral angles, the red marking at the tip of the corium, the 

 light-colored tergum, the short ventral spine and short sec- 

 ond segment of antennte, — arc characteristic of modestus^ 

 and will serve to distinguish it. 



Habits. 

 This species is very common in May, feeding on tent 

 caterpillars {Glisiocampa a7nericana Harr. ) . At the Museum 

 of Comparative Zoology, Cambridge, there are several speci- 

 mens which were found under leaves by Mr. Jacob Boll in 



