NEW EROTYLIDAE. 

 By 



Gilbert J. Arrow. 

 (British Museum, London.) 



Xenotritoma, gen. nov. 



Corpus ovatum, convexum. Caput sat minutum, oculis parvis, pro- 

 minentibus, grosse granulatis, clypeo brevi. Antennae longae, articulis primo 

 et 3 — 6 leviter elongatis, 3 perpaulo longiori, 2 et 7 globosis, 8—11 magnis, 

 hand compactis, latitudine fere ad longitudinem aequali. Oris latera vix de- 

 planata, absque sulcis antennalibus. Maxillae breves inermes, palpis parvis, 

 articulo ultimo fusiformi, acuminato, longitudinaliter truncato. Labium sat 

 latum, palpis brevissimis, articulo ultimo truncato. Pronotum paulo deplana- 

 tum, lateribus bene arcuatis, tenuiter marginatis, angulis omnibus paulo ro- 

 tundatis, poris haud perspicuis. Prosternum postice sat latum, excisum, lineis 

 antice convergentibus brevibus; mesosternum breve, linea semicircular! in- 

 structum ; metasternum et abdomen absque lineis coxalibus, hujus segmentum 

 basale inter coxas recte et sat late truncatum. Pedes graciles, tarsorum 

 articuli tres basales modice dilatati, primus elongatus, quartus minutissimus. 

 Elytra ovata, basi paulo contracta, postice leviter producta. 



This is an isolated genus with many peculiar features. The abruptly 

 4-jointed elongate club of the antenna is the most obvious of these and, 

 together with the minute size and the form of the tarsi, suggests its place 

 as amongst the Tritominae, although the mouth-structure and particularly 

 the acuminate maxillary palpi appear to indicate affinity with the Dacninae. 

 The lateral walls of the mouth are a very little flattened and a microscopic 

 preparation shows that the minute terminal joint of the maxillary palpus 

 has a long truncature of one side, so that, regarding this as its terminal 

 part, it is actually transverse, although longitudinal in position. I therefore 

 regard the genus as an aberrant member of the Tritominae. 



Xenotritoma cingulata, sp. n. 



Rufo-testacea, clava antennali, elytrorum fascia angusta mediana, ad 

 suturam usque basin producta, apicibusque nigris. 



Ovata, sat lata, nitida, convexa, capite parce, pronoto subtilius punctatis? 

 punctis nonnullis majoribus utrinque prope hujus basin, margimis antici et 

 postici medio excepto pronoto toto auguste marginato, lateribus bene ar- 



