28 HETEROMERA. [ Cistelide. 
as the new school for the revival of obsolete names have applied the 
name Cistelide to what we commonly know as the Byrrhide, and the 
name Cistela to the genus Byrrhus, or rather to the small genus Cytilus ; 
it is, however, best “to keep to the ola names, unless we drop the term 
Cistelide altogether, and call the family Alleculide. 
CISTELA, Fabricius. (Pseudocistela, Crotch.) 
There is some doubt as to the true composition of this genus, and 
several authors divide it into three or four separate genera, while others 
also include under it the genus Eryx ; the latter genus appears to be quite 
distinct, and I feel rather inclined to separate Jsomira; as, however, 
C. ceramboides appears to be in some respects more closely allied to this 
sub-genus than to the C. rufipes group, and would also require to be 
divided off, I have thought it better to follow Heyden, Reitter and 
Weise, and others in keeping them together; the genus as here con- 
stituted is characterized by having the antennz long and slender, filiform 
or serrate, with the last joint linear and elongate, and also by the short 
prosternum, the evidently margined thorax, which is often almost semi- 
circular, and the more or less strongly securiform last joint of the 
maxillary palpi ; the upper surface is in some cases glabrous, or almost 
glabrous, and shining, and in others evidently and closely pubescent. 
The genus contains more than seventy species, which are very widely dis- 
tributed ; twenty-eight occur in Europe, and representatives have been 
described from North America, Ceylon, Madagascar, the Australian 
region, &c.; very few, however, are found within the tropics. 
The larva of C. ceramboides is described and figured by Westwood (Classif. i. 
p. 310, fig. 36, 7) ; it is long, subcylindric and scaly, and resembles some of the larvze 
of the Elateride ; the antennz are very short, 3-jointed, with a minute tubercle or 
retractile fourth joint at apex; the head is reddish, the mouth black, the first 
segment pale buff, and the remaining segments, except the last, dull greenish, with 
the posterior margiu red; the last segment is of a buffish colour, conical, and without 
cerci or projections at apex; the larva from which the above description was drawn 
up was found by Mr. Griesbach in a pollard oak on Wimbledon Common. 
The three British species may be distinguished as follows :— 
I. Antenne filiform, with the third joint not or not much 
shorter than fourth. 
i. Upper surface almost glabrous, shining; anterior tarsi 
with the first three ee honey dilated te: g. nlioniade 
Mules: )i uk. ae P = . . . C. LUPERUS, Herbst. 
(fulvipes, F.) 
i. Upper surface finely and thickly pubescent, rather dull; 
anterior tarsi simple (s.g. Isomira, Muls.) . . C. MURINA, LD. 
Il. Antennz strongly serrate, with the third joint very short, 
fourth joint four times aslong as third ; upper surface finely 
pubescent; anterior tarsi simple (s.g. Pseudocistela, 
Crotch), s.q.cepgcieeed iol. ce Aletha! @) felis ferns qgiste pheot pC mORRARBOIDES, crue 
Cc. luperus, Herbst. (fulvipes, F.; s.g. Gonodera, Muls.). Oblong- 
