MR. A. MURRAY'S MONOGRAPH OF THE FAMILY OF NITIDULARLE. 327 
It is not impossible that all the three species which I have above described may prove 
to be varieties of the same. 
From the Amazons. Collected by Mr. Bates under the same circumstances as the 
preceding species or varieties. 
Genus CAMPSOPYGA (kayyoc, incurved, and vy), pygidium). 
Caput oculis sat magnis, basin attingentibus, sulcis antennariis convergentibus. Labrum Fig. 90. 
integrum. Mandibule apice bicuspidate. Elytra striata. Abdomen segmentis 
tribus dorsalibus expositis, segmento secundo breviore, ultimo longiore, caeteris fere 
equalibus ; fimbriis pygidii postice angustioribus, segmentis expositis czeteris postice 
latioribus. Tarsi dilatati. 
Body subfusiform. Head short, with the epistome slightly projecting. Eyes promi- 
nent, extending to the back of the head. Antennal grooves small, narrow, converging. 
Antenne with the first article large, depressed, and dilated in front, second smaller, but 
larger than the following, third small, longer than those which follow, and slender at 
the base, fourth, fifth, and sixth, lying very close together, short, slender, and about 
equal, the sixth a little thicker than the fourth, seventh and eighth more distinct, short, 
transverse, and lenticular, ninth, tenth, and eleventh forming a large ovate club, equal 
in length to the articles from the third to the eighth. Labrum entire. Mandibles with 
the apex bicuspid. Maxillary lobes short and rather narrow, bearded on the inner side. 
Maxillary palpi with the first article very small, second rather large, dilated 'on the 
outer side, third shorter, fourth longest, cylindrico-conical. Ligula emarginate, with a 
membranous obovate lobe projecting nearly straight in front on each side. Labial palpi 
slender; first article short, second longer, and apical article rather the longest. Pro- 
thorax subdepressed, rather narrower in front than behind. Scutellum rounded. Elytra 
striated. Abdomen above with the last three segments and the margin of the fourth 
exposed; the second shortest, the last longest, and the rest nearly equal; the pygidium 
not emarginate at the apex; fimbriæ sinuate, those of the last segment widest in front, of 
the other segments widest behind.  Prosternum slightly keeled, scarcely projecting be- 
hind; metathorax without axillary pieces. Legs moderate ; posterior coxze more widely 
apart than the others; tarsi dilated. 
This genus has considerable resemblance to Prosopeus, but differs in several respects. 
The mandibles have the apex bicuspid instead of being simple. The labial palpi are 
slender instead of thick; the ligula and its membranous lobes are differently formed. 
The thorax is rather narrower in front than behind, while it is the reverse in Prosopeus. 
The abdomen has three segments fully exposed above, while in Prosopeus there is little 
more than two. The fimbriz, instead of being nearly parallel as in Prosopeus, are 
narrow in front and broad behind, except on the pygidium, where they are narrow behind 
and broad in front. The pygidium also is deeply emarginate in Prosopeus and not in 
Campsopyga. 
HALEPOPEPLUS. 
Position and Affinities.—BnAcnvpEPLus. |. CAMPSOPYGA. Prosorevs. 
. MACROSTOLA. 
2v2 
i ems 
