GALERUCINE BEETLES — BLAKE 91 



Head with interocular space half its width, frontal tubercles swollen, 

 and interantennal area carinate, upper part of head deeper brown 

 than lower. Antennae fully half as long as beetle, the basal joints 

 a little paler, rest piceous, 2d and 3d joints short and together barely 

 as long as 4th, remainder shorter than 4th and subequal, joints 8-10 

 swollen in male. Pro thorax wider than long with nearly straight 

 sides, a faint semicircular depression in lower half, nearly impunctate, 

 shining, dirty yellow-brown with a roundish piceous median area in 

 anterior half. Scutellum dark. Elytra wider towards apex and with 

 small humeral prominences and short intrahumeral sulcus; shining, 

 very faintly punctate, dirty yellow-brown, in some specimens a wide 

 piceous vitta, in others this vitta pale reddish brown and indistinct. 

 Epipleura extending to middle of elytra. Body beneath dark, legs 

 pale, the two anterior tibiae with a pale reddish brown area in middle, 

 in the male the anterior tibiae somewhat swollen and the first tarsal 

 joint cylindrical and short, the middle tibiae notched near apex, the 

 middle and posterior tibiae (contrary to Jacoby's description) with a 

 very fine, inconspicuous spine; claws appendiculate. Length 3-3.5 

 mm.; width 1.5 mm. 



Type: Probably in the Bowditch collection. Museum of Comparative 

 Zoology, where there are three specimens (named in Jacoby's descrip- 

 tion) from Quito, Ecuador, alt. 9500 ft., Ed Whymper collector, 

 bearing an old label "Luperosoma marginata," written by Jacoby, 

 2d Jacoby collection. 



Remarks: These three specimens in the Bowditch collection are 

 probably the three original ones described by Jacoby (1891) although 

 in the text of his description the locality is given as "Panecillo Quito, 

 10,000 ft." 



Luperosoma nigrum^ new species 



Figure 4,e 



Approximately 3 mm. in length, oblong oval, shining, the elytra 

 distinctly punctate; entirely black except for a narrow pale sutural and 

 marginal edging on the elytra; antennal joints 8-10 enlarged and the 

 middle tibiae notched in the male. 



Head with interocular space a little more than half its width, 

 polished, impunctate, entirely black, the frontal tubercles distinct and 

 a broad carina between antennal sockets not much produced. 

 Antennae entirely black, in male joints 8-10 swollen, joints 2, 3 short 

 and together about equal to 4. Prothorax wider than long with nearly 

 straight sides, obsoletely and faintly punctate, shining, a semicircular 

 depression across disk; entirely black. Scutellum black. Elytra 

 moderately densely and distinctly punctate, shining black with pale 

 yellow sutural stripe and pale margin. Epipleura pale, extending to 



