OF WASHINGTON. 183 



the punctures much smaller than those of thorax, with traces of smooth 

 intervals on the disc. Ventral surface and femora shining, sparsely and 

 finely punctulate. Tibiae straight, slender. Tarsi slender. 



Length 7.5 mm. Type No. 4172, U. S. N. M. 



One example from Brownsville, Texas, collected (June 9) by 

 Mr. E. A. Schwarz. The species differs from A. brunneus by 

 its much larger size, the long third antennal joint (in brunneus 

 scarcely longer than the second) and the wider thorax with less 

 acute hind angles. It is also very distinct from all the Mexican 

 species, described by Champion. 



Platydema inquilimim, n. sp. Regularly elliptical, moderately convex, 

 entirely ferruginous, somewhat darker above, feebly shining. Prosternum 

 arcuate between the coxae, deflexed behind. Clypeus as long as two-thirds 

 the distance between the eyes in front, separated by a shallow impression, 

 which is transverse to near the eye, then angularly deflexed to the broadly 

 rounded side margin of the head ; front margin as broad as the distance be 

 tween the eyes ; surface convex, finely obsoletely punctulate. Front feebly 

 convex, more strongly and densely punctate. Antennae gradually thick 

 ened, subserrate, sparsely pubescent. Thorax relatively very long, evenly 

 convex; sides broadly rounded and convergent from the base, margin 

 narrowly reflexed ; posterior angles acutely prolonged, anterior angle rect 

 angular with rounded apex; base strongly bisinuate, distinctly margined 

 the whole length; basal impressions punctiform ; disc finely punctate, 

 densely at the sides, more sparsely at the middle and obsoletely on the 

 basal lobe. Scutellum broader than long, acute at apex, sparsely punctu 

 late. Elytra with striae of close-set fine punctures, the striae not at all im 

 pressed on the basal half but deeply so toward apex; intervals flat, con 

 vex at apex, sparsely, still more finely punctulate. Ventral surface finely 

 punctate. Legs finely pubescent and punctulate. 



Length 4 mm. Type No. 4173, U. S. N. M. 



Four examples, collected near Tucson, Arizona (Dec. 23) in 

 nests of a wood rat {Neotoma albigula} by Mr. H. G. Hubbard. 

 One example kindly presented to the National collection by 

 Messrs. Hubbard and Schwarz. 



Branchus opatroides Champion occurs in southern Texas. 

 It is very much smaller than B '. Jloridanus. 



Genus Pyanisia Laporte de Castelnau, Hist. Nat. Ins. Col., 

 II, 1840, p. 235. This genus is the only representative in the 

 New World of the tribe Amarygamides, which differs from 

 Meracanthides by the unarmed femora and the long metasternum*. 

 Two species have been found within the United States, P. opaca, 

 Solier, and P. tristis, Castelnau. The former has the base of the 

 thorax broadly rounded, the latter strongly bisinuate. P. tristis 



