160 Psyche [October 



in the collection of the Biological Survey, United States Depart- 

 ment of Agriculture, at the National Museum. A minute species 

 with short, broad body. 



Description of male: Head two-thirds as long as broad. Front flattened, almost 

 straight, set in between the prominent hook-like anterior lateral angles ; these angles 

 projecting forward slightly beyond the clypeal front, are heavily chitinized and bent 

 backward to form sharp hooks with finely serrated outer margins (Fig. 1, b). 

 Front between hooks with a narrow marginal band bearing four hairs on each side, 

 the second from the center being the longest; also several hairs projecting from the 

 ventral surface, not shown in the figure, and a hair on the anterior extremity of the 

 lateral hooks. A hair on each side on the dorsal surface near the anterior margin, 

 another in front of the antennae and a longer one near the innner extremity of the 

 lateral emarginations. Sides of head before the middle deeply emarginate for the 

 reception of the antenna?. Antennae long, first segment enlarged, about as long as 

 the second, with third a little shorter and diminishing in thickness; last two seg- 

 ments missing. Antennal bands forming the basal marginal portion of the lateral 

 hooks. Eyes indefinite, located on the anterior, forward projecting angles of the 

 temples with a small occular fleck. Occular blotch small, colored. Temples 

 squarish, but little rounded and slightly narrowing behind; one very long marginal 

 hair just behind the eye and two still longer ones arising about half way back, these 

 latter reaching onto the third segment of the abdomen; a short spine near the pos* 

 terior angle, another between the two long hairs just mentioned, and a peculiar, 

 long, heavy spine just behind the anterior hair (Fig. 1, c). Occiput broad, straight, 

 with broadly separated occipital blotches; two hairs on each side, the outer, shorter 

 one near the lateral angles of the head; occipital bands and signature absent. 



Thorax long, slightly wider than head. Prothorax with sides straight, diverging, 

 and posterior margin rounded at the sides but straight across the middle. Lateral 

 angles probably with a long hair, broken off in the specimen at hand, leaving 

 definite pustule. Metathorax quadrilateral with anterior lateral angles protruding, 

 bearing two prominent pustules from which the hairs have been broken ; this segment 

 much narrower than the first segment of the abdomen and embraced by it, extending 

 to its posterior margin and dividing it into two lateral, triangular portions; posterior 

 margin of metathorax not visible. A dorsal hair on each side, midway between 

 the anterior and posterior margins. Legs with femora broad, those of hind legs 

 not projecting beyond the sides of the abdomen, their articulation being well in 

 toward the meson; tibiae long and narrow. 



Abdomen circular, a little wider than long, widest at third segment, with broad 

 lateral bands and faint transverse blotches. Posterior lateral angles of segments 

 two to six produced into a chitinized, slightly in-curved appendage which extends 

 inw r ard and forward as an internal chitinized band to the anterior margin of the 

 segment. First segment longest with uncolored, diverging sides; seventh segment 

 much reduced, shorter than the preceding one and bearing a very long hair; last 

 segment rounded, entire, bearing two very long hairs on the dorsal surface and four 

 shorter ones on the posterior margin. Segments three to six with very long lateral 

 hairs arising before the lateral appendages. An extremely long dorsal hair on the 



