156 Mr. H. W. Bates's additions to the 



Ibidion griscolum, n. sp. (PL V., fig. 13, ^ ). 

 I. textill (Thorns.) individnis griseis subsimilis, sed valde differt, 

 elytris apice singnlatim obtuse rotundatis, aliter signatis, anten- 

 nisque articulo 3io breviori (articulo 4to baud diiplo longiori). 

 Anguste elongatum, thorace relative breviori, pallide rufo-fuscum, 

 griseo subtiliter pubescens subopacum pai-ce setosum, elytris extus 

 uitentibus, utrinque iiiaculis duabus (iina paullo ante, 2nda paullo 

 post-medium) irregulariter oblongis albo-testaceis. Thorax cylin- 

 dricus, angustus, linea dorsali lajvi, disco utrinque poris nonnullis 

 setiferis. Elytra dorso subplanata, bicostulata, sat dense sub- 

 lineattm punctata, apiceni versus lievioribus. Antennas articulis 

 3 — 5 minus late depressis supra carinatis, 5to 4to paullo longiori, 

 4to 3io triente tantum breviori. Femora valde clavata, tibiis haud 

 carinatis. Long. 12 — 14 millim. 



Hah. Mexico, Chilpancingo in Guerrero (i?o</e). Two 

 examples. 



Ibidion gaumeri, n. sp. (PI. V., fig. 16, ^ ). 

 I. textili (Thoms.) af&nis, castaneo-rufum nitidum, corpore sub- 

 tus (et interdum thorace) obscurioribus, elytris longe erecte pilosis, 

 in medio planato-depressis, antennis dimidio basali laxe et longe 

 ciliatis. Caput et thorax subtiliter griseo-pubescentia, hie elongato- 

 cylindricus, disco antico bituberculato. Elytra utrinque maculis 

 duabus oblongis albo-testaceis — Ima longiori paullo ante, 2nda 

 bieviori et oblique longe, post-medium — passim (partibus supra 

 maculas et prope apicem sublaevibus exceptis) punctulata, apice 

 utrinque oblique truncato, angulis acutis. Antennae {$) corpore 

 dimidio lougiores ; articulis 3 — 5 depressis et latioribus, sat lineari- 

 bus, valide carinatis, 4to 3io plixs quam duplo breviori. Femora 

 fortiter clavata, posticis extus carinata. Long. 10 — 15 millim. 

 Hab. Mexico, Temax in N. Yucatan (Gaiuner). 



Distenia lincatopora, Bates, Biol. Ceutr.-Amer., Col., v., 

 p. 35, tab. xvii., fig. 12. 



Mr. H. H. Smith obtained a few examples of this 

 species at Omilteme in Guerrero, alt. 8000 ft., which 

 differ from the unique Guatemalan type-specimen in the 

 number of lines of large punctures or pores on the elytra ; 

 instead of four only, they have four longer lines, with a 

 variable number of pores in the interspaces between the 

 rows. The femora, too, are often black, with the base 

 only tawny-tcstaccous. The size varies from 10 to 



