174 Mr. II. W. Bates's additions to the 



Hub. Mexico, Guerrero. One pair sent me by Mr. 

 Harford, together with a <? example of the following 

 interesting variety : — 



D. rufostigma, var. Thorax disco late nigro, tuberciilo laterali 

 adhuc longiori et acutiori ; elytrorum lateribus hie illic cupreo- 

 aureo tinctis ; caeteris siciit in typo. ? = />. aiiromarginata, Sei'v. 

 Long. 20 milUm., ^ . 



In the form and colour of the thorax this variety 

 answers much better than D. cjja)iipcs does to Serville's 

 description of D. auromar<jinata. His phrases are *' corse- 

 let prcsque cylindrique, unitubercule lateralemcnt "... 

 and " d'un vert sombre." In D. cyanipcs the thorax could 

 not possibly be described as approaching the cylindrical 

 form, nor has it a distinct lateral tubercle ; the sides, in 

 fact, are strongly and irregularly flexuous, the position 

 of the lateral tubercle being occupied by a more pro- 

 jecting flexure. The thorax of D. rufostigma, however, 

 is not at all cylindrical. 



Deltaspis fulva, n. sp. 



D. tuberculicoUi affinis et similis ; differt praccipue antennarura 

 articulo Imo abdomine et pedibus rnfo-testaceis. Kufo-fulva, 

 dense erecte griseo-piibescens, antennis (scape rufo excepto) nigris, 

 capite, thorace limbo antico et postico elytrorumque sutura, fusco- 

 nigris. Thorax dense punetatus, callo oblongo postero-discoidali 

 laevi. Elytra densissinie punctulata, apice flexuoso-truncato, angulo 

 exteriori omnino rotundato. Long. 19 — 22 millim,, ^ . 



Ilab. Mexico, Canelas in Durango (Becker). Two 

 male examples. 



Deltaspis disparilis, Bates, Ent. Monthly Mag., 1891, 

 p. 160. 

 Ilah. Mexico, Canelas in Durango (Flohr, in coll. 

 Bates). 



Deltaspis margiuella, Bates, Ent. Monthly Mag., 1891, 

 p. 160. 

 Hah. Mexico, Canelas in Durango (Flohr, in coll. 

 Bates). 



Deltaspis rariahilis, Bates, Ent. Monthly Mag., 1891, 



p. 161. 

 JTah. Mexico, Guerrero {}I(trf<>rd). 



