1852.] 165 
12. C. punctulatus, niger subtilius pubescens, et parcius nigro pilosel- 
lus, capite confertim subtilius punctato, thorace parcius punctulato margine 
laterali tenui testaceo, elytris alutaceis, subtilius punctatis, margine ad medium. 
latiore, sutura antice dilatata apiceque flavis, tibiis tarsisque testaceis, femori- 
bus nigris. Long. +12. 
One female, Missouri Territory; the first joint of the antenne and half of the 
second are pale, the others are black. 
13. C. histrio Er. Entom. 59; Mannerheim, Bull. Mosc. 1843, 247. 
California, unknown to me. ‘This species is very similar to 4-maculatus, but 
the thorax is densely punctulate, and the posterior spot of the elytra reaches 
the margin near the apex. 
Matacutus Fabr. (emend. Er.) 
1. M.eneus Fabr. Syst. El. 1, 306; Er. Entom. 66. 
Cambridge, Mass., Dr. Harris. Undoubtedly introduced, but apparently 
naturalized, as one or two specimens occux,every year. For the synonyms see 
Erichson as cited above. ‘The references relate only to the occurrence of the 
insect in Europe, and therefore should have no place in our fauna. 
2. M. auritus, cyaneo-niger, vix cinereo-pubescens, labri margine 
clypeoque flavis, thorace vix transverso, angulis omnibus rotundatis, lateribus 
anguste rubris, elytris subtiliter scabris, linea vix elevata notatis. Long. 23. 
San Francisco and San Jose, California. The male has the tips of the elytra 
obliquely truncate and split, the inner part rising over the outer; in the female 
the tip is not distorted, and is of a brilliant red color. The maxillary palpi are 
short and subacute; the abdomen is entirely horny beneath. 
3. M. longiceps, niger nitidus, breviter nigro-pilosellus, parce subtiliter 
pubescens, capite elongato, thorace lateribus sanguineis rectis antice rotundatis, 
elytris vix rugosis sutura apiceque sanguineis. Long. °15. 
A very singular species from San Diego, California. The head is twice as 
long as wide, the antenn@ are inserted in front of the eyes, but not at the tip; 
they are strongly serrate in the male, and but moderately so in the female, the 
last joint of the maxillary palpi is longer than the preceding, and acute. The 
thorax is not wider than long. The elytra are dilated behind, and the tip is 
entire in both sexes. The basal joints of the abdomen are membranous in the 
middle of their ventral surface. The anterior tarsi of the male have the two 
basal joints slightly dilated. In this species the clypeus has a small mem- 
branous spot anteriorly, similar to the ‘rhkinartum’ of some species of 
Necrophorus. 
AntTHOocomus Er. 
1. A. Erichsonii. “ A.ottosus Say.”? Er. Entom. 99. 
This species is unknown to me, it differs from the next species by having the 
apex of the elytra of the male compressed; the anterior tarsi are not dilated. 
2. A. otiosus. Malachius nigripennis|\Say, Journ. Ac. 3, 184; Mala- 
chius otiosus Say, Am. Ent. 3, pl. 48. ‘Anthocomus atripennis Ex. 108 (var. 
with immaculate thorax.) 
Middle and Southern States. The male of this, as of all the following species 
has the second joint of the anterior tarsi enlarged and produced above the 
third and fourth joints; the tip of the elytra is not compressed or distorted. The 
anterior feet are usually yellow. | win’) 
3. A. rufifrons. Malachius rufifrons|Dej. Cat. — ‘ 
Georgia; from a specimen too mutilated for description this species seems 
very similar to the last mentioned, but differs in the head being entirely rufous. 
4, A. lateralis, niger, subtilissime cinereo-pubescens, clypeo rufo, 
