liSS THE CANADIAN ENTOMOLOGIST! 



the humerus, from almost straight ( melanosiictus, Suff. ), to plainly sinuate ; 

 the elytral edge or inflexed side of the elytra begins in the elevated ridge 

 at the base of the elytra, turns round the knob of the shoulder, and is 

 drawn out in a more or less acute edge on the outside of the marginal 

 stria, the curved part below the shoulder is called the lobe, its length, 

 width, curve and punctuation vary considerably. 

 The following forms seem new : 



Pachybrachys brunneus, nov. sp. — Pubescent light brown, sometimes 

 more or less confused with blackish, elytra with stripes of punctures. 

 Length, 2 ' ..-4 mm. 



Head convex in front, finely and closely punctate, with a well-defined 

 triangular depression occupying the usual frontal dark space ; eyes 

 distant ; antennae, 9 very short and thin, scarcely attaining the middle of 

 body, a little longer in J , darker towards the tip, thorax rather elongated 

 and notably narrowed in front, sides lightly bowed, subangulate in 9 » 

 straight in <$ , depressed behind, with a well-marked ante scutellar lobe, 

 surface diffusely and very finely punctate, M faintly indicated in livid ; 

 elytra slightly narrowed towards the rear, finely punctate striate, the striae 

 showing in the 9 a triseriate tendency, which in the best developed 

 specimens forms five quite regular stripes, of which one is sutural and the 

 others occupy about the place of the second, fourth, humeral and marginal 

 intervals, and are traceable nearly to the apex ; owing to the pubescence, 

 this arrangement scarcely shows except in a certain light, the intervals are 

 quite wide, smooth and regular ; the four examples of what I call the $ 

 of this species are much smaller, and have the elytra diffusely punctate, 

 with two or three intervals showing indistinctly, marginal stria very slightly 

 curved at humerus and almost straight behind, the inflexed edge or lobe 

 is of the same width from the curve forward, and abruptly narrowed 

 behind, with a few very fine marginal punctures; below, with the epimera, 

 sides of abdomen, last segment and pygidium, yellowish, wkh dark rings 

 on thighs ; fossa of 9 deep and shining ; some specimens are more or 

 less suffused with black, so as to cover everything except the edges of the 

 elytra and sides of the thorax ; in these examples the under side is also 

 dark. Comes near ana/is, Lee. 



Phoenix and Prescott, Arizona, five 9 's, four £ ' s - Type coll., 

 Bowditch. 



Pachybrachys Wickhami, nov. sp. — Thickly silvery, pubescent, slen- 

 der, cylindrical, black, with indeterminate red markings on the elytra- 

 Length, 2^-3 mm. 



