179 
sent from Aburi have been mostly identified, with some difficulty, but 
the identification has not led to the discovery of any literature dealing 
with their habits and economic features. 
Nature of Insects sent. 
The insects received from Aburi are ^ —À in different stages of 
development. They are divisible into tw 
1. eq Beetiles.— One species n Toe corn beetle has been 
cent in each case as destructive to coffee, Castilloa elastica, and orange 
and lemon trees respectively. These appear to be the really injurious 
insects of the consignment. 
2. Beetles belonging to the tribe Heteromera. With the exception 
of one species, tekon by Dr. Easmon from orange and lemon trees, there 
is no evidence, direct or indirect, to connect any of these insects with 
the damage Wittatne jed. 
It will therefore be convenient to consider the ongien beetles 
— Three species have been sent. They ar 
ivadus sierricola, White, Proc. Zool. Soc. s P- Ae iere 
Coffee Boret: Described originally deum Sierra Leone. 
has been sent as destructive to coffee, both Arabian and Liberian, 
Though Dr. Easmon seems doubtful on this point, there is no difference 
in the examples sent from either tree. "The species attacks both kinds 
of coffee indifferently. 
ivadus is a sub-genus of Monohammus, a large genus of Longi- 
cornia, which sista: two European species, M. sartor and M. sutor, 
both destructive to Coniferæ 
2. Inesida leprosa, Fabr. Syst. Ent. p. 178 (The Castilloa Borer), 
Described from Guinea and Senegal. This insect, familiar in collections 
of West African beetles, is the borer of Castilloa elastica. 
3. Eunidia sp. (The Orange Borer.) This species is a small Longicorn 
sent as destructive to orange and lemon trees, But one example of the 
erfect insect has been received, which I cannot identify with a 
species in the British Museum collection, African species of the e gen 
ave been described from the Cape (1), Natal eu “ Caffraria ”’ © 
Senegal (1), Angola (1), and Damaraland (1). e locality of t 
species sent is not far removed from Senegal; bai m is RE br to 
identify. it with the species occurring ia rx region, except after the 
examination of the type which cannot ‘be 
The species of Eunidia are obscure ib not readily determinable 
from descriptions. 
General Habits of Longicorn Beetles. 
The perfect insects of Longicorn beetles are usually rather sluggish, 
and are to be found by day on leaves, or on the trunks of trees, or logs. 
Sometimes they sit by day in the mouth of the burrows made by the 
larve. A few, chiefly of the smaller species, fly by day, but the 
majority fly at dusk or early in the night. 
‘The female deposits her eges, as a rule, in the cracks of bark, having 
an care tubular apex to the abdomen for that purpose. She does 
not pierce sound bark, but ues eracks, either natural fissures or 
cracks due to fungoid disease, w ds, &e. It is quite exceptional for 
a Longicorn beetle to lay on eben surfaces, and probably none of 
these species in question do so. 
