146 Mr. Crotch's Descriptions of 



15. Acqithus qnadrinotatus, Chevr. Col. Mex. Cent. 1., 

 fasc. 4 (1834) - Lac. Mon. Erot., p. 283 (1842) - Aegi- 

 thits chdhratHH, Lac. Mon. Erot., p. 282 (1842). 



Ovatiis, ater, elytris convexis, vix striato-piinctatis, tes- 

 taceo-flavescentibus, sutiira, singuloque maculis maguis 

 nigris. L. c. 3i-4 lin. 



The Chontales specimens accord with those from Mexico 

 (Orizaba, Teapa). Coll. Chevrolat. 



Acq. clathratus differs only in having tlie spots much 

 larger, and the punctuation apparent. 



Intermediate coxal line short but evident. 



16. Aegithus Jansoni, sp. nov. 



Breviter ovatus, convexus, ochraceus, capite antice im- 

 presso, cum thorace Itevibus ; hoc marginibus anguste 

 lineisque tribus nigris (1 discoidali, 1 utrinque disci) ; scu- 

 tello magno, testaceo, Isevi ; elytris subtiliter gemellato- 

 punctato-striatis, interstitiis hevibus, margine suturaque 

 anguste nigris, disco toto fusco, ochraceo-cincto. L. c. 4 lin. 



Intermediate coxal line present. 



17. Aegithus cardinalis, Chevr. Col. Mex. Cent. I., fasc. 4 

 (1834) - Lac. Mon. Erot, p. 284 (1842) - Aegithus rufi- 

 pennis, Chevr. Col. Mex. Cent. I., fasc. 4 (1834) - Lac. 

 Mon. Erot., p. 284 (1842). 



Late ovatus, ater, elytris cora;llinis Ipevibus. L. c. 4-6 lin. 



Mexico, Teapa ; Costa Eica ; Panama ; Nicaragua. 



var. A, capite thoraceque supra infra que nigris = ?'«^- 

 pennis, Chevr. 



var. B, capite thoraceque rufo, hoc tertia discoidali 

 nigra, prosterno nigro, epipleuris \\\f:Q:=^cardinalis, Chevr. 



var. C, capite thoraceque rufo, prosterno et epipleuris 

 Ti\fis^= mcridionalis, Crotch. 



I consider these three forms referal)le to one species, 

 though the variation in outline is considerable. 



The intermediate coxal line is well marked. 



The Chontales specimens all pertain to var. (Acg. me- 

 ridionalis, Crotch). 



