ART. 2 BOLIVIAN BEETLES OF THE FAMILY CLEEIDAE CHAPIN 5 



dense on front. Front densely clothed with depressed silvery pubes- 

 cence. Antenna with basal segment and extreme apex of club pale, 

 intermediate segments deep gray-brown. Mouth parts pale except 

 for the piceous mandibles. Pronotum very slightly broader than long 

 (19-20), widest at apical third, anterior transverse impression distinct 

 but broad, disk transversely wrinkled anteriorly, punctures very fine 

 and very sparse. Lateral dilations prominent, each carrying a single 

 deep round pit; the anterior one of the usually present pair is obsolete. 

 Color dark testaceous, flanks, except for the lateral dilations, piceous. 

 Scutellum dark. Elytra widely separated apically, humeral callosities 

 square and prominent, apices coarsely serrate, the serration continued 

 along the sutural and lateral margins for a short distance, surface 

 coarsely but not densely punctured. Color brownish testaceous, each 

 elytron with a circular whitish spot at middle of length, the diameter 

 of the spot almost equal to the breadth of the elytron; just before and 

 behind the pale spot along the suture the elytron is infuscate. Vestiture 

 pale, erect and sparse. Underparts sparsely covered with silvery pubes- 

 cence. Terminal tergite of male roughly triangular with the apex trun- 

 cate; it carries a poorly-defined median longitudinal carina. Fifth 

 sternite much broader than last tergite, with a broad and deep triang- 

 ular emargination, its edges tumid, the surface densely punctured and 

 clothed with long hairs. Tarsal claws with very small basal tooth. 

 Length: 4 mm. Locality: Huachi. 

 Type.— Cat. No. 29358, U.S.N.M. 



Subfamily Epiphloeinae 



Genus PLOCAMOCERA Spinola, 1844 



5. PLOCAMOCERA CONFRATER Kuwert 



Plocamocera confrater Kuwert, 1893, Ann. Soc. Ent. Belg., vol. 37, p. 496. 



Plocamocera confrater, var. similis Kuwert, Ann. Soc. Ent. Belg., vol., 37, 

 p. 497. 



Plocamocera confrater, var. sericelloides Kuwert, Ann. Soc. Ent. Belg., vol. 37, 

 p. 497. 



In the Mulford collection there are nine specimens of the genus 

 Plocamocera, all of which I refer to this species. No two are exactly 

 alike, either in the coloration of the ventral surface or in the elytral 

 pattern. In length the specimens range from 3 mm. to 6 mm. The 

 smallest, the largest, and two specimens intermediate in size were 

 taken at Cavinas, the rest of the lot came from Tumupasa. One 

 specimen is almost entirely pale beneath and fits the description of 

 P. confrater, var. sericelloides Kuwert, another agrees well with the 

 description of P. confrater, var. similis Kuwert; however, the series 

 shows such a gradual increase in the extent of the dark coloration 

 from that of var. sericelloides Kuwert to that of the typical confrater 

 Kuwert that it does not seem of any use to preserve these varietal 

 names. 



