420 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 



transverse carina at base of head very slender, the former nearly as long as the berae- 

 lytra. Surface of head polished, iuipunctured, clothed with short hairs. Tylus slen- 

 der, short. Eyes large, promiueut. Pronotuni smooth, very convex, sparingly hairy, 

 linely, densely, and mostly coufluently punctured, the punctures forming obscure 

 transverse rugosities. The head and forepart of the thorax are slightly darker yel- 

 low, the antennie are sometimes pale throughout, sometimes embrowned at tip and 

 also at tip of second joint. A broad baud on the pronotum, a little within the mar- 

 gin, extends backwards along the inner edge of the calvus, is continued as a dusky 

 shade through the middle of the membrane, deepest along the inner ed^e of the inuer 

 cell, and extends distally into an indefinite dusky shade. This line is intersected at 

 the tip of the corium by a transverse band of the same color, extending to the edge 

 of the hemelytra. When the wings are closed, these marks give the appearance of a 

 median black stripe crossed at the tip of the corium by a black band, and forking at 

 the scutelUira. In the darker colored specimens the pronotal bands are frequently 

 connected by a basal shade. The posterior half of the larger cell of the membrane 

 is usually white. In many yellowish specimens the cuneus alone is green. The pos- 

 terior thighs are commonly infuscate on the distal half, and the anterior tibijs are 

 often brown at tip. Length to tip of hemelytra 6'"™. Humeral breadth 1.66"^«». 



On the 12th May the younger leaves of many of the common soft maples (Acer dasy- 

 carpum) near Normal were observed to be curled and specked with numerous semi- 

 transparent spots, evidently the work of the larvje of this Capsid, found abundantly 

 upon the affected leaves. On the 30th May specimens collected were all of the sec- 

 ond and third stages. Ou the first of June, the first images were seen in the breed- 

 ing cages and on the trees. By the 5th of that month nearly all the specimens col- 

 lected had transformed to the imago, and the experiment was not carried further. 



6L Poecilocapsus goniphorus (Say). 

 A brilliant scarlet red bug found on difterent trees, including the maple. 

 62. Lygus monachus Uhler. 



The following account by Miss Murtfeldt of this bug appeared in her 

 report as special agent of the Division of Entomology (Bulletin 

 No. 13) : 



This bug came under my notice for the first time late in the spring of 1882, infest- 

 ing the growing points of young soft maples {Acer dasycarpum). Most of the insects 

 were at that time mature, but two or three pupie were found, enough to indicate that 

 the leaves of the maple had been their breeding place. A few specimens were taken, 

 but as the insect was not present in suflicient numbers to give it importance as an 

 injurious species, not much attention was paid to it. During several succeeding 

 springs I occasionally came across a mature specimen — which, from its exceeding 

 agility, both in running and flying, generally evaded capture— but it was not until 

 the present season that the maples were infested to such an extent as to injure and 

 disfigure them. 



Just as the leaves were beginning to put forth, close observation revealed the fact 

 that they were all more or less stippled with transparent spots, some mere dots, 

 others a tenth of an inch or more in diameter. As the leaves expanded the delicate 

 cuticle of the upper surface would give way and they presented the appearance of 

 being perforated with holes and much torn and tattered along the margin, marring 

 their beauty for the entire season. If, about the 1st of May, the leaves were care- 

 fully examined, there would be found on the under surface of each from two or three 

 to a dozen or more very delicate bugs of a very pale translucent-green color, the 

 embryo wing-pads being almost white. They were further characterized by very long 

 and slender legs, beak, and antennae, body flat and broad oval in outline ; head small, 



