230 HETEROCERA. 
Hab. Honpuras (Dyson ?, in mus. Brit.).—ARGENTINE RepuBLic (Durnford, in mus. 
D.).—West Inpizs !. 
I include this species in our fauna upon the authority of a specimen from Honduras 
in the British Museum ; it is the only one I have seen, excepting those from the 
Argentine Republic contained in my own collection. 
The life-history of this interesting insect has been very fully described by Lansdown 
Guilding, Westwood, and Zeller ; numerous figures of the various stages are given by 
these authors. 
Fam. COSSIDA. 
COSSUS. 
Cossus, Fabricius, Ent. Syst. iii. p. 1 (1793); Walker, Cat. vil. p. 1510. 
One of the species I have placed in this genus is probably not a true Cossus. So 
many different forms, however, are included in the genus by Walker and Herrich- 
Schaffer that without making an examination of most of the species it would be 
impossible to separate them into different genera; I have not sufficient available 
material to enable me to arrive at any definite conclusion. 
1. Cossus redtenbachi. 
Zeuzera (Cossus) redtenbachii, Hammerschmidt, Naturw. Abhandl. von Haidinger Wien, ii. p. 151, 
t. 14, ff. 1-8 (1848)*; Walk. Cat. vii. p. 1530”. 
Hab. Mexico 12, 
The figure of this species is a very bad one; it represents the insect as of a uniform 
slaty-grey colour, with several darker lines crossing the primaries from the costal 
margin to the inner margin. The larva is stated by Hammerschmidt to closely resemble 
that of C. ligniperda, and to bé of a dull reddish colour. This insect is quite unknown 
to me. 
2. Cossus (?) multipunctata, sp.n. (Tab. XXIV. fig. 9.) 
Primaries deep black, thickly banded with small dark blue spots; secondaries uniform smoky-black ; the under- 
side of both wings glossy brownish-black, the costal margin of the primaries thickly speckled with blue 
spots: head, thorax, abdomen, and legs black (antenne wanting). Expanse 12 inch. 
Hab. Panama, Volcan de Chiriqui (Trétsch, in mus. Staudinger). 
This insect has the wings so thickly covered with scales that it is impossible to see 
the neuration properly. I believe the specimen to be a female, but the abdomen is so 
much flattened that I am unable to speak positively. 
LANGSDORFIA. 
Langsdorfia, Hiibner, Samml. exot. Schmett. ii. t. 192 ; Walker, Cat. vu. p. 1527. 
The single species placed in this genus by Hiibner is very widely distributed; I have 
to add a second from Western Mexico. 
