NEOBROTICA AND RELATED GENERA — BLAKE 325 



Elytra with a pale fascia varying in width and on each elytron a basal spot 

 also varying in size bella, new species (p. 332) 



8. Legs entirely dark nigriventris, new species (p. 326) 



Legs not entirely dark 9 



9. Elytra with a lateral vitta from humerus to apical curve 10 



Elytra without a long lateral vitta 12 



10. Elytra with a median apical spot or short vitta . peruensis, new species (p. 328) 

 Elytra without an apical spot or vitta 11 



11. Large (9 mm.), Colombia maxima, new species (p. 335) 



Small (6 mm.), Trinidad bryanti, new species (p. 331) 



12. Elytra pale with a dark spot on humerus and a dark apical area enclosing a 



pale spot phaica, new species (p. 336) 



Elytra not with a dark apical area enclosing a pale spot 13 



13. Elytra with a wide basal fascia flavipes, new species (p. 329) 



Elytra without a wide basal fascia 14 



14. Elytra with a wide apical fascia terminalis, new species (p. 328) 



Elytra without a wide apical fascia 15 



15. Large (8 mm.) megala, new species (p. 336) 



Smaller (5-7 mm.) 16 



16. Legs with apex of hind femora and tibiae and tarsi more or less dark. 



mapirii, new species (p. 331) 

 Legs entirely pale 17 



17. Elytra with a dark lateral vitta extending below middle and a sutural vitta 



at apex and large spot on side beniensis, new species (p. 327) 



Elytra with a dark spot on humerus and a dark area about scutellum and a 

 short vitta at side and spot in middle at apex . . mansei, new species (p. 330) 



Hystiopsis marginalis (Fabricius) 



Figure 70 



Crioceris marginalis Fabricius, Systema eleutheratorum, pt. 1, p. 454, 1801. 

 Diahrotica marginalis (Fabricius). — Gemminger and Harold, Catalogus coleopter- 



orum, vol. 12, p. 3563, 1876. — •Weise, in Schenkling, Coleopterorum catalogus, 



pt. 78, p. 38, 1924. 



About 6.5 mm. in length, elongate oblong oval, dull alutaceous, 

 each elytron with eight strong costae, the intervals geminate punctate; 

 pale yellowish brown sometimes reddish brown, with deeper brown 

 elytral markings in the shape of a wide vitta from the humerus nearly 

 to the apex along the side, a narrow sutural vitta ending before the 

 apex, a round basal spot along the side of the scutellum and a median 

 spot near the apex of each elytron. 



Head with interocular space approximately half width of head, occi- 

 put alutaceous and finely punctate, frontal tubercles not well marked, 

 a little swollen and a median depression above them, an indistinct 

 carina running down the lower front from between antennal sockets, 

 lower front depressed; entnely pale reddish brown. Antennae long 

 and slender, brownish with the three terminal joints paler. Prothorax 

 a little wider than long with nearly straight sides, a transverse sulcus; 

 dull alutaceous, finely punctate, pale reddish brown. Scutellum pale. 

 Elytra with eight fairly strong costae on each elytron, the intervals 



