PROC. ENT. SOC. WASH., VOL. 21, NO. 3, MAR., 1919 .").") 



ported seed of unknown source; Pierce 1917 added no new records; 

 and Hoyt 1918 must have seen a number of specimens found in 

 seeds received in Los Angeles, Cal. from a dealer in Mexico City 

 for he kindly has sent three examples to the Bureau of Entomology. 

 The six examples before me are very dark brown with short decumln-nt 

 fulvous or cinereous hairs in the transverse wrinkles of the elytra; on the lattL-r 

 are two conspicuous transverse bands of densely placed hairs, one at basal 

 two-fifths and lateral fourth, broadly interrupted at middle, the other at 

 apical fourth narrowly interrupted at suture but nearly obsolete on flanks. 

 Length (rostrum excepted) 14-15 mm. 



HeilipUS pittieri n. sp. (H. lauri (part) Barber 1912, Pierce 1917. ) 

 Similar to //. lauri but differs in the bright rufous color of the integument and 

 uniform disposition of the elytral vestiture as well as in the longer rostrum, 

 stronger development of the mesosternal tubercle and relatively slightly 

 narrower pronotum. Length (rostr. excl.) 13, l-tVa, 15Y 2 , 16V2 mm.; length 

 of rostrum tf, 5 to 5.7 mm., 9 , 8.1 to 9.8 mm. 



The type and three paratypes (U. S. N. M. Type No. 22007) 

 issued at Washington, D. C. in 1912 from a small lot of seeds of 

 Persea pittieri Mez. received by the Bureau of Plant Industry, 

 U. vS. Department of Agriculture, from Mr. Carlos Werkele in 

 San Jose, Costa Rica. 



CONOTRACHELUS. 



The most common, weevil larvae found in imported avocado 

 seed by the federal inspectors since 1912 was reared from three 

 lots of seed, and proved to be as recorded by Sasscer 1918, a 

 Conotrachelus which we were unable to identify among the 189 

 species of this genus treated by Champion in the Biologia Centali- 

 Americana (Vol. 4, pt. 4, 1904-6) until after its close relationship 

 with Floridian specimens of C. serpent-inns Boh. was noticed. 

 Although females of the two forms are often almost indistinguish- 

 able the characters of the males are so different that there seems 

 to be no alternative but to add the hundred -ninetieth species 

 to the list of Central American Conotrachelus. The males of 

 both species have the rostrum shorter before the antennal sockets 

 and have a pair of tufts composed of two or three short tactile 

 hairs near the apex of the last ventral segment. The two species 

 here distinguished may be recognized in the males as follows : 

 c? 1 with hook on anterior tibia flattened, bidentate, apex shallowly emarginatc; 

 rostrum conspicuously pubescent in basal two-thirds; antennae inserted 

 at apical fifth; metasternum with very large, shallow concavity, the posterior 

 margin of which is elevated into a strong, transverse, arcuate and finely 

 crenulate ridge; first abdominal segment without median impression; 

 hind tibia longer and more slender, with inner margin obliquely truncate 

 and biseriately ciliate in apical fourth, and with a strongly curved apical 



