DISONYCHA. 315 



24. Disonycha hbgei. (Tab. XIX. fig. 2.) 



Testaceous ; antennae, a central thoracic spot, and the scutellum black ; elytra impunctate, testaceous, more or 



less stained with fulvous at the sides ; tarsi fuscous. 

 Length 3 lines. 



Hab. Mexico, Jalapa, Cerro de Plumas {Edge). 



In comparing I), hogei with ID. figurata, the following differences are to be noted : 

 the thorax in the former is narrower and more transverse, the anterior margin more 

 concave and the angles more distinctly produced outwards and obliquely shaped ; 

 instead of the two small central spots, a single short narrow line is placed in the middle 

 of the disk (as in D. glabrata) ; the scutellum is black (in all specimens of D figurata 

 it is testaceous) ; lastly, the entire underside and legs are testaceous, the tarsi only 

 being piceous or fuscous; the sides of the elytra and the thorax in one specimen 

 are suffused with rufous. 



This species is certainly distinct from the preceding, but may be only a pale variety 

 of B. glabrata ; no trace of any longitudinal black bands on the elytra is visible, but 

 the ground-colour of the latter is closely covered with minute piceous spots when seen 

 under a lens ; these again are interrupted by two or three longitudinal pale stripes, 

 more or less distinctly visible. A few specimens from Ventanas differ from the others 

 in their much paler colour and in having the two small thoracic spots wider apart as is 

 the case in B. caroliniana. 



25, Disonycha antennata. (Tab. XIX. fig. 4.) 



Flavous or testaceous, shining ; antennae (the basal joint excepted) black, robust and short ; thorax and elytra 



impunctate ; tibiae and tarsi piceous or black. 

 Length 3-3| lines. 



Hab. Mexico, Ventanas (Forrer), Cordova, Vera Cruz, Panistlahuaca (coll. Salle), 

 Jalapa (Edge). 



I am obliged to separate this species from the two preceding ones on account of its 

 more elongate and parallel shape and its robust and shorter antenna? ; the latter 

 have the third and fourth joints of very nearly equal length and are much thicker than 

 those of D. figurata ; the upper and under side of the insect is entirely flavous and very 

 shining, and the thorax and elytra are without any trace of darker markings. The 

 species resembles Cacoscelis Jlava, but the different shape of the thorax, of the antennae, 

 and the impunctate elytra will prevent its being mistaken for that insect. Three speci- 

 mens from Jalapa differ from the others in having the entire upperside stained with 

 light red, but in all other respects they are identical. The unspotted thorax, more 

 elongate shape, want of any elytral design in connexion with the much more robust 

 and shorter antennae, will help to separate the present species from B. figurata. 



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