NEOBROTICA AND RELATED GENERA — BLAKE 277 



Other localities: Escuintia, Guatemala, F. Kjiab, collector. 



Remarks: On one of the specimens is an old label, Diabrotica 

 biannularis Harold, a species that it strongly resembles in its elytral 

 markings. There are three specimens, all females, in the MCZ with 

 no locality label. They all have delicate narrow dark markings. 

 The faint purple lustre of some is suggestive of A^. coeruleolineata 

 Jacoby, but I have not seen specimens of A^, noumenia with a long 

 stripe from the shoulder. 



Neobrotica dentata, new species 



Figure 7 



About 7 mm. in length, elongate oblong oval, shining, the elytra 

 faintly alutaceous and distinctly and somewhat striately punctate, 

 with faint lateral costae; pale yellow brown, the head entirely piceous 

 and the elytra with wide dark himieral, median and sutural vittae 

 united at the base and not extending to the middle of the elytra, a 

 wide dark lunate mark at apex, sometimes divided into two spots, 

 the legs, antennae and undersurface except the dark breast, pale. 



Head with interocular space less than half the width of head, occiput 

 finely punctate, a depression above the frontal tubercles and a narrow 

 carina down front; entirely piceous. Antennae entirely pale yellow 

 brown. Prothorax about a third wider than long with rounded sides, 

 finely punctate, a transverse sulcus and shining pale yellow brown. 

 Scutellum dark brown. Elytra shining although faintly alutaceous, 

 distinctly and somewhat geminately striate punctate, some traces of 

 lateral costae, pale yellow with a dark marking having a faint bluish 

 lustre, a broad darkening in basal fourth of elytra with very narrow 

 pale inlets in middle and at suture in lower part, and a wide semi- 

 circular mark opening at the apical end and at apex. Body beneath 

 and legs entirely pale except for the black breast. Length 6.5-7.2 

 mm.; width 2.7-3.5 mm. 



Type, female, USNM 66845, from San Jose, Costa Rica, collected 

 by J. F. Tristan. Specimens also from San Jose, 1000-1200 m., 

 collected by F. Nevermann, and by M. Valerio, Sept. 17, 1930, on 

 Chamaedorea. 



Remarks: The unusual elytral markings of this species differentiate 

 it from the others. It was collected at San Jose, Costa Rica, by 

 three different collectoi-s. The specimen collected by M. Valerio is 

 in the MCZ. 



Neobrotica ornata Jacoby 



Figures 23, 24 



Neobrotica ornata Jacoby, in Godman and Salvin, Biologia Centrali-Americana, 

 Coleoptera, vol. 6, pt. 1, p. 572, 1887. 



From 5 to 7 mm. in length, elongate oblong oval, feebly shining, 



