THYCE AND POLYPHYLLA 343 



three pale vittae distinct, the sublateral diffuse before the middle; 

 stiff erect hairs rather numerous at apex medially; scutellum narrowly 

 and densely squamose along the middle; elytra rather smooth, very 

 shining, scarcely rugulose but with long and irregular, coarsely 

 impressed creases, very sparsely punctulate, the yellowish squamules 

 very small; suture and four lines of dense white scales not very broad, 

 the third visible only in two or three places; pygidium narrow, 

 apparently longer than wide, very convex, shining, having very small, 

 remotely scattered scales, but without trace of erect hairs, having 

 a broad glabrous median line; abdomen sparsely hairy, with a few 

 scales; tarsi slender. Length 25.5 mm.; width n.o mm. Honduras, 

 Wittkugel *concurrens Csy. 



25 First tooth of the anterior tibiae (9 ) well developed, at least half as 

 high as the third 26 



First tooth of the anterior tibiae (9 ) very small though acute* 29 



26 Female with the hind tarsi unusually long, nearly as long as the 

 tibiae. Body broadly oval, black, very closely clothed throughout 

 with conspicuous yellowish scales, which are dense and pure white 

 in the broad and conspicuous vittae; head broad, the vertex with dense 

 white scales toward the eyes and a more yellowish central cluster, 

 also with moderately numerous, not very long erect hairs; clypeus 

 with the reflexed apex bisinuate, the sides parallel, the surface 

 clothed almost evenly and closely throughout with large scales, the 

 punctures even and coarse; erect hairs wholly wanting; antennal 

 club as long as the three preceding joints; prothorax rather more than 

 twice as wide as long, obtusely prominent at the sides, unusually 

 convex between the broad dense vittae, all three of which are entire; 

 punctures rather coarse, irregular in distribution, in some places 

 rather dense, in others sparsely scattered, all bearing very large 

 pointed scales, generally about twice as long as wide, smaller but 

 subsimilar laterally; erect hairs wanting, except a few short and stiff 

 on the apical edge medially; scutellum densely clothed with white 

 scales, the periphery throughout, except toward the middle of the 

 base rather broadly glabrous; elytra oval, widest at the middle, 

 thence rounding gradually behind, the apex not broadly obtuse, 

 evenly rounded, two-fifths longer than wide and two-fifths wider 

 than the prothorax, the intervals not rugose, rather dull, closely 

 punctate, clothed with broad close-set scales to the edges of the 

 broad white vittae, the scales between two and three times as long 

 as wide; pygidium relatively moderate, but little wider than long, 

 triangular, convex, extremely densely clothed throughout with 

 small suberect overlapping whitish scales; legs and antennae fer- 

 ruginous. Male not known. Length 30.0 mm.; width 15.0 mm. 

 California (without more definite record) squamotecta n. sp. 



Female with the hind tarsi shorter, always very much shorter than the 

 tibiae, a little longer in the male 27 



27 Female with the hind tarsi shorter than in any other species, about 



* This character is so evidently definitive in the two large species possessing it, that 

 I feel inclined to make use of it, although the female of a number of forms placed in 

 .and apparently belonging to the previous division, is not known at present. 



