F. C. BOWDITCH 497 



a slight angulation before the middle, anterior angles {jroininent, excurved, 

 tuberculiform (analogous to lacunosus Clk.) the upi)er surface rough with 

 humps and points like a Chlamys. There is a well marked median groove, 

 the sides of which form humps and ridges of which the most prominent are, 

 a small one on each side near the anterior margin, then back of the middle a 

 sharp carina on each side, nearly reaching the hind edge, and on each side, 

 about the middle is a large hump. Eljiira with a very deep antemedian 

 curved depression which brings the scutellar region and shoulder knobs into 

 great prominence, capped by short spines, curved backward, each elytron has 

 scattered back of the middle about six knobs with similar spines, including two 

 ante-apical near the suture, the whole surface is coarsely punctate striate, with 

 deep foveate punctures, the striae being much broken and obsolete back of 

 the basal depression; body beneath smooth shining black, legs black, the four 

 anterior femora more or less rufous at base and all more or less sericeous with 

 fine pubescence, claws appendiculate. 



Near lacunosus Clk. and like spinipenjiis simulates a small 

 longicorn. 



Two examples. 



Homotyphus spinipennis nov. sp. 



Elongate, subparallel, general color dark grayish brown with 

 the labrum, clypeus, antennae, coxae and a large spot on the 

 apex of the posterior femora rufous, an indefinite transverse band 

 across the apex of the elytra rather sparsely fulvous pubescent, 

 a row of six or eight small spines arranged across the base of the 

 elytra and eight or ten more postmedian. 



Type. — Peru [square green label] (Callanga?). Second Jac. coll. 

 (label n.i.m.) Length 6.5 mm. 



Head not i)rolonged in front, clypeus transversely grooved truncate, an- 

 tennae approximate, a broad shallow depression across the vertex, back of the 

 eye, the surface closely punctate and with a faint line of yellow pubescence 

 between the eyes bringing out two transverse tubercles just above the an- 

 tennae, which latter are long and slender reaching nearly the apex of the hind 

 femora, with the third and fourth joints nearly equal, the seventh, eighth and 

 eleventh are dark rufous; thorax almost square, sides margined and .slightly 

 sinuate before the middle, the anterior angles strongly produced into an ex- 

 curved tubercle (like lacunosus Clk. only more so), a broad median channel 

 runs from the apex nearly to the base, making on either side a well defined 

 ridge, at the middle forming a fair-sized tubercle, the entire surface finely 

 punctulate and thickly covered with appressed yellow pubescence which 

 shows when the specimen is turned in various lights; scutellum fulvous pubes- 

 cent; elytra with gross punctures arranged in striate form, becoming obsolete 

 towards the apex, a broad antemedian transverse depression curving up in 

 the usual manner to the shoulders gives great prominence to the immediate 



TRANS. .\M. EXT. -SOC, XLI. 



