THROSCIDIUM.—CISSIDIUM. 155 
The specimens from Central America, as well as those from the Cape Verde Islands, 
are rather smaller and paler in colour than those found in Ceylon; but resemble them 
entirely in form, and in the very peculiar sculpture of the thorax and elytra. 
The following genera and species recorded by Motschulsky from Central America are 
not contained in the present collection * :— 
MYRMECOTRICHIS. 
Myrmecotrichis, Motschulsky, Etudes ent. 1855, p. 17; Bull. Mose. xli. part 2, p. 181 (1868). 
Myrmicotrichis, Matthews, Trich. Ilustr. p. 150, t. 14 (1872). 
1. Myrmecotrichis zquatorialis. 
Myrmecotrichis equatorialis, Motsch. Bull. Mosc. xli. part 2, p. 182, t. 8. fig. 1’. 
Myrmicotrichis equatorialis, Matth. Trich. Illustr. p. 152, t. 23. fig. 9. 
Obconic, flavescent, clothed with short golden hair; thorax strongly arcuate, with the hinder angles exceedingly 
produced ; elytra narrower than the head and thorax, much attenuated posteriorly, the apex truncate ; 
abdomen much exposed ; legs and antenne short, robust. Length 0-75 millim. 
Hab. Panama (Motschulsky 1). 
In the nests of Edecnemia hystrix, Latr. ! 
2. Myrmecotrichis subvittata. 
Myrmecotrichis subvittata, Motsch. Bull. Mose. xli. part 2, p. 182°. 
Hab. Istumus of Panama (Motschulsky 1). 
This insect is unknown to me; it is possibly the female of UZ. egquatorialis. 
CISSIDIUM. 
Cissidium, Motschulsky, Etudes ent. 1855, p. 17; Bull. Mosc. xli. part 2, p. 189 (1868). 
This genus is unknown to me. 
1. Cissidium basale. 
Cissidium basale, Motsch. Bull. Mosc. xli. part 2, p. 190, t. 8. f£. 57. 
Hab. Istumus of Panama (Motschulsky 1). 
2. Cissidium rufescens. 
Cissidium rufescens, Motsch. Bull. Mosc. xli. part 2, p. 190’. 
Hab. Istumus of Panama (DMotschulsky 1). 
* Micridium lineatum, Motsch., by an oversight, has been recorded by me (Trans, Am. Ent. Soe. xi. p. 153) 
as from Central America; the locality given by Motschulsky is “ North America.” 
X* 2 
