no. 3601 GLYPTOSCELIS BLAKE 45 



ridging between and, on either side of suture, in apical half, often a 

 bare line parallel to suture, sometimes interrupted with patches of 

 denser white pubescence ; the brown and white pubescence not so dense 

 as to hide surface. Body beneath with denser white pubescence, 

 base of femora, tibiae and tarsi usually reddish brown. Length 

 5.8-7.2 mm. ; width 3-3.6 mm. 



Type: U.S. National Museum no. 65356. 



Type-locality: Resistencia, Pro v. Chaco, Argentina, F. Monr6s. 



Other localities: Argentina: Mision Laishi, Formosa Prov., Sep- 

 tember 1950, Willink and Monr6s; Santiago del Estero, Jan. 18, 

 1912. 



Remarks: The wide and not very convex prothorax is the most 

 distinctive character of this species. The three species G. para- 

 guayensis Jacoby, G. pinnigera, and G. monrosi Blake are all very 

 similar, but G. pinnigera differs from the other two in its broad, not 

 very convex prothorax. It comes from the Chaco region. Beetles 

 were observed by Willink and Monros feeding on Prosopis. The 

 species described by Schaeffer from Brownsville, Tex., was named 

 by him G. prosopis, presumably because it too was taken on mesquite. 



Glyptoscelis paraguayensis Jacoby 



Figure 31 



Glyptoscelis paraguayensis Jacoby, 1897, Entomologist, vol. 30, p. 260. 

 Glyptoscelis paraguensis, Clavareau, 1914, Coleopterorum catalogue, par. 59, 

 p. 130. 



About 7 mm. in length, elytra tapering to apex, widest at humeri, 

 prothorax reddish brown, elytra faintly aeneous green; antennae and 

 legs reddish brown; pronotum finely punctate with a median impunc- 

 tate line; elytra more coarsely and distantly punctate; pubescence 

 with brown and white bans intermingled. 



Head closely covered with brown and white hairs. Antennae 

 extending below humeri, reddish brown. Prothorax with rounded 

 sides, densely and strongly punctate with a median vertical impunc- 

 tate line; reddish brown with brown and white hairs horizontally 

 arranged from the median line, and obscuring punctation. Elytra 

 widest at humeri and tapering to apex, with a pinched-in depression 

 before the tip and a considerable thickness of white hairs producing 

 a small prolongation at apex; pubescence on elytra of mingled brown 

 and white hairs resulting in a mottled wavy effect; surface beneath 

 with an aeneous green lustre; more coarsely punctate than prothorax 

 and with horizontal ridging. Body beneath reddish brown, densely 

 covered with white hairs. Legs reddish brown. Length 7 mm. 



Type: In British Museum (Natural History). 



Type-locality: Paraguay. 



