* 
LONGICORNIA. 323 
5. Deltaspis alutacea. 
D. nigripenni simillima ; differt elytris vitta laterali ab humero usque ultra medium rufa, minutissime con- 
fluenter punctatis et opacis; pectore interdum rufescenti. 
Long. 5-8 lin. $2. 
Hab. Mexico, Izucar (Sallé), Ventanas (forrer). 
In form and colours similar to D. nigripennis, and the thorax varying in the same 
way with regard to the lateral tubercles being present or not, even in the same sex ; 
but the surface is opaque, owing to the close sculpture which is formed, on the thorax, 
of shallow round fovee, and, on the elytra, of minute confluent punctures. The 
elytra are dull black, with the exception of a red lateral vitta extending from the 
shoulders. to a little beyond the middle, and there tapering to a point. The apex of 
the elytra also varies nearly in the same way. Some of the Ventanas specimens are 
intermediate in respect of the punctuation of the elytra between the two species; the 
two forms approach therefore very nearly the status of geographical varieties. 
- This species is the analogue of Batyle meridionalis (resembling it in colours and to 
some degree in sculpture), as D. nigripennis is that of Batyle ignicollis. 
6. Deltaspis rubens. 
Elongato-oblonga, nigra, dense et longe griseo-pubescens ; thorace supra et elytris lete coccineis, illo antice et 
postice nigro-marginato, his vitta suturali, nigris; capite scapoque grosse confluenter punctatis ; antennis 
d quam corpus duplo longioribus, 9 quam corpus brevioribus, articulis confertim punctulatis ; thorace 
transverso, medio paullo dilatato et utrinque breviter conico-tuberculato, grosse confluenter punctato, obtuse 
quinque-calloso; scutello lato triargulari ; elytris apice flexuoso-truncatis, confertissime et subconfluenter 
punctatis. 
Long. 7-9 lin. oO. . 
Hab. Mexico (Sallé), valley of Mexico (Flohr). 
Notwithstanding its bright red colour and style of markings, more nearly allied to 
Deitaspis than to the similarly-coloured Ty/osis. In well-developed males the third and 
fourth antennal joints show distinct traces of a groove, as in D. auromarginata and 
D. rubriventris. The species would fit almost equally well in the genus Crossidius, with 
which Deltaspis is very closely allied. 
7. Deltaspis mosta. | 
D. thoracico minus elongata, nigra opaca, elytris chalybeo-nigris vix nitidis; undique longe [subtus densius | 
setosa; capite scapoque grosse confluenter punctatis ; thorace alveolato, lateribus pone medium valido 
tuberculatis; scutello lato; elytris apice flexuoso-truncatis, angulo exteriori breviter spinoso, confertissime 
ét subconfluenter punctulatis ; ventre apice lato, rufo-hirto. 
‘Long. 7} lin. 2. 
Hab. Muxico (Baden, coll. Bates). 
8. Deltaspis (?) virens. 
Fere cylindrica, viridi-enea, erecte pilosa, supra grossissime confluenter punctata ; thorace inermi, lateribus 
2t2 
