56 PROC. ENT. soc. WASH., VOL. 21, NO. 3, MAR., 1919 



hook; aedeagus flattened, less strongly chitinized, apex broadly truncate 

 and bearing lateral patches of very fine, short pubescence, the opening 

 hardly double the width of the chitinized border. Length, Q 1 /-, to 7 mm. 

 Habitat in seeds of Persea from Guatemala City. 



Conotrachelus perseae n. sp. 



d 71 with anterior tibial hook simple; rostrum pubescent in basal third; antennae 

 inserted at apical third; metasternum with small medium posterior im- 

 pression; first abdominal segment broadly, shallowly impressed; hind 

 tibiae shorter, stouter, with only a vestage of the inner apical emargination 

 and with an inconspicuous hook; aedeagus strongly convex, heavily chitin- 

 ized, with opening about five times the width of the lateral border, apex 

 rounded or narrowly truncate. Length, 5 J /2 to 6 mm. Habitat, Cuba, 

 Florida and Georgia. (C. ventralis Lee. 1878.) 



Conotrachelus serpentinus Boh. 



Conotrachelus perseae n. sp. Larvae believed to be of this 

 species are before me from seven lots of avocado seed and from 

 three of these lots adults have matured in my breeding jars. 

 The first adults reared are from seed which came from Coban, 

 Alta Vera Paz, Guat. and are smaller, paler in color, with almost 

 uniformly, pale yellow vesitture and it is feared they may have 

 issued under abnormal conditions in the breeding jar, so specimens 

 from the two other lots from Guatemala City which are supposed 

 to be more normal, have been chosen as types, and the following 

 description was drawn from two live and freshly emerged but 

 fully hardened females: 



Integument very dark piceous (almost black), shining. Vestiture moder- 

 ately dense and composed of hairs of three colors intermixed rose-red, 

 rather pale brownish, and a few white; the first being quite dense on the 

 front, the humeri, and base of second interstrial space of elytra and on the 

 legs; the brownish hairs being confined principally to the disc of the elytra, 

 and the white occurring conspicuously in the punctures of the metasternum 

 and abdomen, in the large serial punctures of the elytra and less prominently 

 in small, irregularly placed spots and bands on the disc of the elytra. Elytra 

 with alternate interspaces carinate, the two inner ones much less prominent 

 on the disc, the two outer ones uniting in a rather strong humeral prominence. 

 Abdomen and metasternum shining, very sparesly punctate; a strongly 

 elevated oblique ridge connecting the middle and hind coxae and ending in 

 a slightly produced tubercle in front of the hind trochanter; median area of 

 metasternum finely crenulate behind and with similar transverse sculpture 

 in front; last three abdominal segments narrowly margined with fine pale 

 pubescence; femora very strongly toothed, with the rosy hairs more densely 

 placed in illdefined postmedian and subapical bands. 



Type, allotype and 14 paratypes No. 22008 U. S. N. M. 

 The larval galleries in the seed reach a diameter of about 

 4 mm. and are tightly packed with frass. When the larvae are 



