1908.] NATURAL SCIENCES OF PHILADELPHTA. 13 



EL^IOCHLOEA St^l. 

 Elaeochlora arcuata n. sp. 



Types: d and 9 ; Jundiahy, State of Sao Paulo, Brazil. March 1, 

 1899 (d'). (Schrottky.) [A. N. S. Phila.] 



This peculiar species belongs to the section of the genus containing 

 E. trilineata and viridicata (Serville) and humilis and pulchella Rehn, 

 as well as the rather aberrant picticollis (Gerstaecker). It is readily 

 separated from any of these species by the well elevated and longi- 

 tudinally arcuate median carina of the pronotum, the tubercles of the 

 pronotum also being blunter and fewer than in the allied species. 

 The male can also be immediately separated from the above species, 

 except picticollis, by the short acute tegmina. 



Size rather large; form of the female quite robust, of the male slen- 



Fig. \,—ElaoMora arcuata n. sp. Lateral view of male type. (X 2h.) 



derer. Head with the occiput rounded ; fastigium subhorizontal, very 

 slightly excavated, longer than broad, the apex slightly acute-angulate, 

 the apical margins slightly arcuate in the male; angle of the fastigium 

 when viewed from the lateral aspect narrowly rounded into the moder- 

 ately (9) or considerably (d") retreating face; frontal costa very 

 much narrowed at its junction with the fastigium, slightly but regu- 

 larly expanding ventrad to the clypeus, sulcate except in the very 

 narrow dorsal portion; eyes of the male elhptical, oval, of the female 

 ovate; antennee not complete. Pronotum rugoso-punctate, with the 

 prozona tectate, the metazona with the disk flattened and the carina 

 considerably elevated, the outline of the carina when viewed from 

 the lateral aspect being very slightly arcuate in the female, very con- 



