512 Memoirs on the Coleoptera 



rounded at apex, the oblique sides feebly arcuate, a fourth wider than 

 the prothorax and scarcely twice as long; striae moderate, half as wide 

 as the intervals, the punctures of the latter small, rather well separated 

 and unevenly uniserial, confused throughout the broader second and 

 third; male with a feeble rounded medio-basal impression, which is 

 semi-glabrous. Length (cf) 1.85 mm.; width 0.8 mm. Texas (Browns- 

 ville) , — Wickham. 



A very distinct and isolated form, easily recognizable by the 

 clearly marked single lines of ochreous scales on the elytra and the 

 conspicuously squamulose beak. 



Catapastus seriatus n. sp. — Narrowly subrhomboidal, more obtuse 

 behind, feebly shining, black throughout; squamules of the upper 

 surface long, slender, sparse and whitish, evenly distributed on the pro- 

 notum and in single lines on the strial intervals, becoming rapidly and 

 broadly confused only very near the base on the second interspace; 

 scattered scales wanting; under surface with slender and close-set 

 scales, larger and sparser throughout the prosternum; beak in the female 

 moderately thick, feebly tapering, strongly, evenly arcuate, moderately 

 sculptured and a little longer than the head and prothorax, the surface 

 with some fine, sparse squamules basally; antennae inserted beneath and 

 at the middle; prothorax a fourth wider than long, the sides converging 

 and straight, rounding and oblique only in apical fourth, the apex three- 

 fifths as wide as the base; punctures coarse, much less close-set than in 

 the preceding and with a well developed, entire, polished and impunctate 

 median line; scutellum semi-squamose, small; elytra a fourth longer 

 than wide, the sides feebly oblique and rather strongly, subevenly arcuate 

 to the somewhat obtusely rounded apex, the humeri not distinctly tumid, 

 a fifth wider than the prothorax and distinctly more than twice as long; 

 intervals distinctly and uniserially punctate. Length (9) 1-75 mm.; 

 width 0.75 mm. Texas (Brownsville), — Wickham. One example, as in 

 the preceding. 



Although this species and the preceding were taken at the same 

 place and by the same collector, one represented only by the male 

 and the other by the female, and both characterized by somewhat 

 the same unilineate arrangement of the elytral squamules, I have 

 no doubt at all that they represent different species. The form and 

 sculpture of the prothorax differs very much, this being a feature 

 not greatly subject to sexual modification. 



Of C. albonotatus Linell, I have two specimens, one from Lake 

 Worth, taken by Kinzel, and the other from Eleuthera Island; it 

 is the smallest species known to me, being 1.5 by 0.62 mm. in di- 

 mensions; the basal spots of white scales, from which it derives its 

 name, are minute and rather inconspicuous. 



