158 MEMOIRS ON THE COLEOPTERA. 



Colpodota austiniana n. sp. Moderately slender and convex, fusoid and 

 slightly shining, dark piceous-brown, the elytra scarcely paler and the large 

 suffused cloud of the abdomen very indistinct; punctures fine, close and 

 strongly asperate; head rather strongly transverse, the eyes somewhat prom- 

 inent and at much less than their own length from the base, the short tem- 

 pora not as prominent; antennae rather small and slender, only feebly in- 

 crassate, blackish, piceous basally, the third joint shorter and more obconic 

 but not thicker than the second, the fourth evidently longer than wide, the 

 outer joints only slightly transverse, the last moderate, pointed and as long 

 as the two preceding; prothorax rather large and moderately transverse, 

 very strongly narrowed from the rounded base to the apex, with the sides 

 only moderately arcuate, nearly as wide as the elytral apex but wider than 

 the base, unimpressed; elytra rather large, with distinctly diverging sides, 

 the suture very evidently though not greatly longer than the prothorax; 

 abdomen strongly tapering, rather acute, at base distinctly narrower than 

 the elytra, the fifth tergite long but not quite as long as the two preceding. 

 Length 1.6 mm.; width 0.37 mm. Texas (Austin). 



This species has more the facies of insulsa, but is stouter than 

 that species, with the elytra relatively less elongate. 



Colpodota defessa n. sp. Small and very slender, slightly shining, finely, 

 closely and asperately punctate, dark piceous, the elytra paler, dark brown, 

 the legs pale; abdomen rather closely but very finely punctulate, as usual 

 in this section; head nearly as long as wide, oval, feebly swollen basally, 

 the eyes very moderate, at fully one-half more than their own length from 

 the base; antenna? blackish, rather long, very slender, scarcely visibly in- 

 crassate, the second joint much longer than the third and equally thick, 

 the fourth just visibly longer than wide, fifth to tenth very little wider than 

 long, though increasing very gradually in size, the last slender, pointed from 

 about the middle to the tip and fully as long as the two preceding; prothorax 

 not two-fifths wider than long, subparallel, much rounded at base, the latter 

 a little wider than the apex, the sides arcuate, much wider than the head 

 and equal in width to the elytral base, the median line finely, feebly impressed 

 throughout the length; elytra moderately abbreviated, with slightly diverg- 

 ing sides, the suture not quite so long as the prothorax; abdomen a little nar- 

 rower than the elytra, almost parallel in about basal half, rapidly tapering 

 thence to the decidedly acute apex, the fifth tergite one-half longer than the 

 fourth. Length 1.5 mm.; width 0.28 mm. Rhode Island (Boston Neck). 



This species is distinguishable by its small size, slender, fusoid 

 form, smaller eyes, slender antennae and other characters as outlined 

 above. 



Colpodota assecla n. sp. Small and very slender, rather convex, scarcely 

 shining, finely, densely and very asperately punctate, the abdomen less so, dark 

 piceous in color, the elytra barely at all paler, the legs pale; head distinctly 

 wider than long, relatively unusually large, the eyes large and prominent, 

 at one-half their own length from the base, the tempora less prominent; 

 antennae piceous, paler basally, only moderately long but perceptibly in- 



