GALERUCINE BEETLES — BLAKE 251 



unusually shallow transverse depression more marked at the ends; 

 very finely punctate, polished yellow brown. Scutellum yellow 

 brown. Elytra with traces of lateral costae, finely punctate, in the 

 dark part but in the broad pale median fascia which is also somewhat 

 depressed, the punctation tending to be geminate striate and coarser; 

 the fascia interrupted at suture, apex narrowly pale. Body beneath 

 pale with the breast brownish, legs except coxae dark, anterior coxal 

 cavities open, a spine at end of middle and hind tibiae, claws ap- 

 pendiculate. Length 8.2 mm.; width 3.8 mm. 



Type, female, Naturhistoriska Riksmuseet, Stockholm, Sweden, 

 collected at Manaos, on the Amazon, Brazil, by Roman. 



Remarks: This is certainly not a species of Neobrotica as Weise 

 has described it. Bechyne has stated that it is possible it may belong 

 in his genus Romanita. Only a female is known, but it shows little 

 resemblance to Romanita amazonica Bechyne, the genotype, except 

 in the long fourth antennal joint. Whether the thu'd joint in the 

 male is short and compressed and the middle tibiae notched is im- 

 possible to determine at present. There is a depression behind the 

 middle of the elytra, which is one of the characters that Bechyne 

 gives for Romanita. 



PorechonteSf new genus 



Type species : Porechontes vnlcoxi, new species. 



Elongate oblong oval, head with the lower front smooth and some- 

 what bulging, in the male a pore in the middle of the lower front 

 below the antennal sockets. Antennae long, extending to the middle 

 of the elytra, the third joint short and compressed in the male, fourth 

 joint longer than the fifth joint, usually the eight and ninth joints a 

 little wider or irregularly triangular in the male. Prothorax with 

 a shallow, scooped-out depression in the basal half, sides rounded 

 with the explanate margin visible from above. Elytra without 

 depressions, confusedly punctate. Anterior coxal cavities open, 

 middle tibiae in the male excised near the apex, first joint of hind tarsi 

 long, claws appendiculate. 



This genus differs from the genus Romanita as typified by Romanita 

 amazonica Bechyne in the shape of the head with the pore in the 

 middle of the lower face, in having the ninth and tenth antennal 

 joints usually somewhat widened in the male, and by the narrower 

 prothorax and lack of any depression behind the middle of the elytra. 

 It is distinguished from Platymorjjha by the shape of the head which 

 instead of having a spine over the labrum and a short carina, has a 

 long somewhat bulging lower front with a pore below the antennal 

 sockets. Platymorpha albiventris Blake (Proc. U.S. Nat. Mus., vol. 

 108, p. 99, 1958) belongs in this genus. At the time I described the 



782-219—66 3 



