238 MR. R. SUELFORD ON MIMETIC INSECTS AND | Nov. 4, 
never been figured. Such species have been included in the 
appended tables, when their descriptions have shown that they do 
not ditler in characters of mimetic importance from the closely 
allied species with which I am acquainted; in every case these 
are marked with an asterisk. I have not included a large 
concourse of species belonging to the subfamilies Mesosine and 
Apomecynine, which present in their general facies a marked 
resemblance to the Rhynchophora, for, although the tyro in 
entomology might readily mistake many of these longicorns for 
Rhynchophorous species, I have, nevertheless, found it quite 
impossible to pair any one given species with a definite model. 
The resemblance is in fact, as is so frequently the case, general 
and indefinite, not special as, for example, in the species of the 
subfamilies Astatheinw and Saperdine, which mimie for the most 
part definite species of the Phytophaga. It will therefore suftice 
if I simply enumerate here those genera of the Mesosine and 
Apomecynine which present most markedly Rhynchophorous 
features :-— 
Subfam. J/esosine:—Anancylus, Planodes, Ereis, Cacia, Mnemea, 
Sorbia. 
All these Coleoptera, more especially Hreis anthriboides (Pasc.), 
have a general resemblance to Anthribide. 
Subfam. Apomecynine :—Cenodocus, Synelasma, Ltaxalus, 
Phesates, Praonetha, Sybra, Ropica. 
These bear a general resemblance to Curculionide. 
Nores on Taste I.—Longicorns mimicking Hymenoptera. 
The subfamily Phytectine furnishes ten and probably more 
species belonging to three genera which mimic the Braconide. 
The models can be divided into two sections :—(1) species with 
dark red head and thorax and black abdomen and wings (genus 
Myosoma); (2) reddish-ochreous species (genus /phiaulax), one 
of which has already been shown to be mimicked by JMJantispa 
simulatrix. Seytasis nitida (Pasc.) and four species of Oberea 
are coloured in identically the same way as their models, the 
red-and-black Braconids. Furthermore, 8. 2i¢ida and three out of 
the four species of Oberea (the exception being O. rubetra (Pasc.)) 
are marked with a large white patch of pubescence on the sides 
of the first and second abdominal segments, which patches, when 
the beetle is seen in profile, give an impression of a wasp-like 
waist, from the posterior end of which the abdomen appears 
gradually to swell in size. This effect is shown in Plate XIX. 
figs. 13, 14, & 15, representing respectively Oberea strigosa (Pasc.) 
var., O. brevicollis (Pasc.), and Oberea probably n. sp. near strigosa 
(Pasc.). The thin waist of the model is not seen from above when 
the insect is at rest, being hidden by the laid-back wings, and 
consequently this obviates the necessity of dorsal white patches 
on the mimic as in the African Locustid IMyrmecophana fallax, 
whose model is a wingless ant with an abdominal peduncle plainly 
[10] 
