1880 .] 
59 
Acanthoderes Tiiammi. 
A. rubnpedi (Bates) simillimus, at differt antennarum articulis 3 to e i 4 line- 
ribus compi essis, apice nullo modo dilatatis. Castaneo-fuscus, Icete croceo-macu/atus, 
pedibus antennisque rubrisjemoribus tib Usque basi et apice nigris , tar sis aureo-fu/vis, 
articulo basalt obscuriori : maculis croceis ita dispositis :—apudfrontem, genas et 
occipitem utrinque macula una ; ad thoracis latera utrinque maculae magnce duce, et 
(medio dorso) duae minores : ad elgtras utrinque circa decern, quarum quinque major es : 
elytiis apice recte truncatis, angulis exterioribus vix productis : corpore subtus 
lateribus croceo-maculato. Zong. 7— 8* lin., S ? . 
Chanchamayo, Peru (Thamm). 
Ihis handsome species of the Swederi group is distinguished from 
rufescent varieties of A. Swederi by the second joint of the tarsi being 
always golden-tawny like the 3rd and 4th. It is, besides, a larger and 
more robust insect, with shorter and stouter legs, and the spots are 
laiger and of a richer deeper yellow than in Swederi : the two discoidal 
spots of the thorax are always present, in other respects the number 
and position of the spots both above and beneath are very similar in 
•the two species. 
AcANTHODERES ZOISTATTTS. 
A. Swederi affinis : castaneo-rufus, tenuissime aureo-tomentosus, elytris fascia 
lecta paido ante medium guttisque nonnullis basin versus et post medium, pallide 
flavis : antennis articulis 3—6 apice, 7—11 totis, atro-fuscis, 3—4 apice leviter in- 
crassatis, 8 11 abbreviatis : tibiis anticis apicem versus (prcecipue extusj conspicue 
dilatatis : pedibus rubris, genubus tibiisque apice atro-fuscis, tarsis melleofulvis : 
corpore subtus atrofusco , griseo-pubescenti, lateribus (fere ut in A. Swederi) favo- 
m a™lato. Long 7 lin ? ? _ 
Cauca Yalley, near Granada. 
In the dilated apices of the 3rd and 4th antennal joints, and the 
diminished length of joints 8—11, and in the expanded apices of 
the fore tibiae in the $ , this well marked species agrees with A. rubripes 
and brevicollis, of JNdcaragua, and differs from A. Swederi. The ex- 
ceedingly close resemblance of these species, notwithstanding the 
abrupt structural modifications, is well worthy of note. 
Acanthoderes sijbtessellatus. 
A. Swederi paullo longior : niger, subopacus , thorace lateribus elytrisque plagi- 
atim at bis ; partibus albis nigro-punctatis et laciniatis apud elgtras fascias duas 
adumbr antibus , viz., altera obliqua ab humeris ducta, altera apicem versus : capite 
maculis sex (ut in A. Swederi sit is) albis : thorace fere impunctato : elytris basin 
versus sparsim aspere punctatis, apice transversim Jlexuoso-lruncatis ; angulis exter- 
ioribus paullo productis: corpore subtus nigro, albo-maculaio ; tibiis medio albis, 
tarsis articulis 3—4 aureofulvis : antennis ut in A. Sweden articulis 3 — 4 usque ad 
apicem linearibus, sed differt articulo 11 mo ( j ) precedenti breviori. 
Long. 5 — lin., $ . 
Ecuador (Buckley). 
Another very distinct species of the Swederi group. 
