GALERUCINE BEETLES — BLAKE 247 



more specimen which was collected at Tepanistlahuaca, Mexico, by 

 Salle and is now probably in the British Museum. He also writes of 

 a variety without spots. There is in the U.S. National Museum col- 

 lection a specimen from Yepocapa, Guatemala, that may be the male 

 of Jacoby's centromaciilatus . It has, however, an additional pair of 

 spots in the basal half of the elytra. On the other hand, it does not 

 entirely correspond with Jacoby's description of the variety of Platy- 

 morpha variegata because there is no humeral dark spot, and in Jacoby's 

 description no mention is made of median basal spots. One of the 

 localities given by Jacoby for variegata is Capetillo, Guatemala, which 

 is the same locality as that for centromaculata. 



To J. A. Wilcox belongs the credit for noting that Jacoby's species 

 doubtfully described as a species of Malacorhinus really belongs to 

 Platymorpha. 



Platymorpha homoia, new species 



Figure 4 



About 6.5 mm. in length, elongate oblong oval, feebly shining, alu- 

 taceous, the elytra finely punctate, the pronotum with a shallow, not 

 very conspicuous transverse depression, the head in the male with a 

 somewhat depressed lower front in the middle of which above the 

 labrum protrudes a bifid spine, antennae with the second and third 

 joints very short and compressed in the male, the remainder long, 

 heavy and triangular at apex; pale yellowish brown with dark antennae, 

 dark tibiae and tarsi, the femora with a dark streak at the apex, in the 

 male the first tarsal joint and front tibiae much dilated, the middle 

 tibiae excised near the apex. 



Head with the interocular space a little more than half width of 

 head, occiput alutaceous and finely punctate, a median depression over 

 the frontal tubercles, carina short, below this the lower front shallowly 

 depressed, with the labrimi produced somewhat horizontally and right 

 over it in the middle a bifid spine ; all pale yellowish brown. Antennae 

 long and dark and wide, the second and third joints short and com- 

 pressed, the two terminal joints lacking. Prothorax with the lateral 

 explanate margin visible from above its entire length and at apex 

 slightl}^ toothed; the transverse sulcus not very conspicuous but a 

 shallow depression; surface alutaceous, finely punctate, entirely pale. 

 Scutellum pale. Elytra alutaceous and finely punctate, entirely pale, 

 except for a very faint median brown spot below the middle on each 

 elytron. Body beneath entirely pale, femora pale with a dark streak, 

 tibiae and tarsi dark. In the male the front tibiae widened near the 

 apex and the first tarsal joint nearly globular above, the underside 

 slightly concave; middle tibiae with a barely perceptible notch, very 

 shaUowly excised near the apex; first tarsal joint of hindlegs long and 



