MR. A. MURRAY’S MONOGRAPH OF THE FAMILY OF NITIDULARLE. 251 
(Genus incerte sedis.) 
Genus CALONECRUS. 
Thomson, Arch. Ent. i. 117 (1857). 
Antenne undecimarticulate, duobus ultimis articulis liberis, vel conglutinatis*. Caput liberum, sine 
sulcis antennariis. Oculi modici, haud basin capitis attingentes. Epistoma porrectum. Labrum 
emarginatum. Maxillz forsan bilobz, lobis conglutinatis. Ligula paraglossis vel alis membranaceis, 
ovatis, biplicatis. Elytra haud striata. Abdomen supra segmento ultimo solum exposito, foeminis ? : 
anali segmento auctum; primo et ultimo segmento longioribus et zqualibus, ceteris modicis et 
zequalibus ; fimbriis vix visis. 
Body elongate. Head free, without antennal grooves; eyes moderately large, not reach- 
ing to the base of the head. Antennæ with the first article elongate, stout, and dilated ; 
second shorter and smaller; third longer; fourth to eighth small and nearly equal, 
gradually moniliform and a little broader; ninth short and broad, and forming the first 
article of the club, but more of the size and shape of the eighth article in other species 
of Nitidularie ; the rest of the club either composed of two free articles, or apparently 
composed of only one article, but really of two united. Labrum emarginate. Clypeus 
distinct. Epistome projecting. Mandibles bidentate; inner side behind the teeth bearded. 
Maxillary lobes composed of two consistences—corneous and membranous—the former 
reaching from the base nearly to the apex, the latter oblique and confined to the apex. 
It has occurred to me that, as in the last articles of the antennz in the species in which 
these are united, there may here be two lobes soldered together into one; it is short, 
bearded at the apex and on the inner side. Maxillary palpi with the first article small, 
second very large and dilated, third smaller and shorter, fourth conical or pointed and 
narrow. Labial palpi with the first article small, the second longer, the third elongate 
elliptic oval. Ligula scarcely extending beyond the base of the labial palpi, but appa- 
rently composed of two parts, like a pair of labial lobés; the membranous lobes of the 
ligula large, rounded, and apparently double. Mentum with two abruptly projecting 
teeth. Thorax nearly hexagonal, margined, not equal to the elytra in breadth. Scutel- 
lum moderate, triangular. Elytra elongate, attenuate at the apex, sides enclosing the 
abdomen, not margined, not striated. Abdomen above with only the pygidium and the 
margin of the penultimate segment exposed, and below with the first and last segments 
largest, the rest moderate and equal. In one of the sexes (supposed to be the female) 
there is an additional anal segment to the abdomen. Fimbrie scarcely visible from 
above. Prosternum not very prominent, resting on the mesothorax ; the thorax without 
axillary pieces. There is a slight eminence in the middle at the posterior part of the 
metathorax, where it separates towards the trochanters of the posterior legs: from its 
position, the name of * umbilical point’ suggests itself for this papilla. The coxæ of each 
pair of legs are nearly equally distant from each other. Tarsi dilated. 
* M. Thomson describes the antennz as being only ten-jointed in his species (C. W'allacei); but on careful 
examination a line of separation can be easily distinguished near the base of the last article, showing that it is com- 
posed of two articles; and in a second, very closely allied, species described by Mr. Pascoe under the name of C. rufipes, 
the separation is complete and normal as in other Nitidularie. 
