

73 



ments of the abdomen they are more specially observable. The 

 surface of the insect is covered with small tubes or round openings 

 from which no hairs issue. 



The head, when examined under a low power, appears rounded 

 in front, but, when highly magnified, is composed of five circular 

 waves, the central one smaller then the others. 



The eyes, two in number, are situated behind the antennae 

 and the outer extremity of the head, making them visible from 

 both above and below. They are globular and very dark, if not 

 black, and form a prominent contrast against the yellow of the in^ 

 sect. The antennae. Fig, IV., are situated a short distance from 

 the margin, and arise from slight fleshy tubercles, their outline 

 admits of slight waves but they are otherwise quite smooth, yet form' 

 ing no regular number of hairs. The nnmber of the joints are six. The 

 first five are of nearly equal size, the second and fifth slightly longer 

 than the others, the sixth and last joint equal in length to the first 

 four combined. From the first five segments one or two strong 

 hairs project from the sides usually from a sruall tubercle or pro- 

 jection of the skin and from the sixth joint as many as twelve 

 hairs issue, which are of nearly equal length, the apical one the 

 longest and they all proceed from a slight elevation. 



Beneath, the clypeus is nearly of a triangular shape, rounded on 

 the anterior margin, the sides nearly straight, the buccal setae are 

 evidently supported by the frame work of the clypeus. 



The labium, or beak, is similar to that described by Mr. J. D. 

 Putnam in his treatise on Pulvinaris innumerabilis, Proc. 1). A. X. 

 S., Vol. 11, p. 301, "it consists of a single joint which appears to 

 be formed by the sides of the labium being turned forward and 

 then inward, becoming united to form a flattened conical sheath 

 through which the buccal setae are eventually thrust." The sheath 

 however is more triangular than conical in this species as compared 

 with innuinerabilis. Fig. V. 



The thorax is nearly as long as the head and abdomen together 

 and is the widest part of the insect. Tlio prothorax is closely 

 united to the head, and is nearly as long as the meso- and meta- 

 thorax combined, the widest part is gained in the mesothorax. The 

 metathorax is as wide as the prothorax and half as long. The sides- 

 of the body admit of a compression at these segmentations. The 

 legs are situated tlie same distance from the sides and from each 

 other, and are set well under tlie l)ody. Tlie anterior pair are at- 

 tached to tlie prothorax, just at the side and a little below the la- 



