346 PROCEEDINGS OF THE NATIONAL MUSEUM vol. us 



brown or piceous, front tibiae and first tarsal joint in the male much 

 enlarged. Length 6.5-7.5 mm.; width 3-4 mm. 



Type, male, BMNH, from the Amazon region, Brazil; other 

 specimens from Peru. 



Remarks: This species has the smallest alteration in the male 

 antennae of any so far described in the genus, the third and fourth 

 joints being barely perceptibly^ swollen and the tiny excavation of the 

 third and fourth joints being almost unnoticeable. The development 

 of the shelf under each antennal socket and the median spine in the 

 face of the male is more or less typical of the other species. 



Eccoptopsis cyanocositiesa, new species 



Figure 98 



About 6.5 mm. in length, broadly oblong oval, shining, the head 

 in the male somewhat excavate and the antennae with the third and 

 fourth joints swollen and excavated at the adjoining ends, the pro- 

 thorax with a deep transverse sulcus, the elytra strongly costate, the 

 intervals with geminate-striate punctures, yellow brown with the 

 elytra dark greenish blue except for the pale margin; antennae more 

 or less piceous and the tibiae and tarsi deep brown. 



Head with the interocular space approximately half the width of 

 the head, occiput smooth, shiny, finely punctate, a depression above 

 the well marked frontal tubercules, lower front in the male shallowly 

 excavated below the antennal sockets, a short median spine below 

 this and a shorter one on each side, entirely yellow brown except for 

 the brown jaws. Antennae in the male with the third joint somewhat 

 swollen and excavated near the apex and the fourth joint excavated 

 at the base, the rest subequal and slender, dark brown. Prothorax 

 nearly twice as wide as long with rounded sides and a deep transverse 

 sulcus across the middle, shining although alutaceous, finely punctate, 

 yellow brown. Scutellum pale. Elytra alutaceous with distinct 

 costae and between them rather coarse geminate-striate punctures; 

 dark green or blue, with a pale margin a little wider near the apex, 

 the apex somewhat pinched in. Body beneath entirely pale, in one 

 specimen the color of the breast darker, femora pale, tibiae and tarsi 

 dark. Anterior coxal cavities open, the claws appendiculate, a spine 

 on the middle and hind tibiae, the anterior tibiae of the male stout and 

 the first tarsal joint long and dilated at the base. Length 6.5 mm.; 

 width 3.3 mm. 



Type, male, BMNH, Sharp collection, from Brazil. 



Remarks: A second mutilated specimen in the British Museum 

 from *'Rio" has deep blue elytra. There are eight old specimens, 

 mostly bluish, in the Bowditch collection, one from Rio de Janeiro, 

 four without labels, and one from South America and two from Brazil. 



