34 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 123 



From 7 to 9 mm. in length, elongate oblong oval, elytra shining 

 with a bronzy lustre, legs and antennae deep reddish brown, covered 

 with fine white pubescence, pattern of pubescence on pronotum with 

 hairs parting in middle and falling in feathery pattern downward, and 

 on the sides arranged more horizontally; punctation shallow, often 

 contiguous, in some specimens remnants of a bare median line; 

 elytral punctation not so dense, pubescence a bit coarser. 



Head with interocular space more than half width of head, eyes with 

 a small emargination at antennal sockets, finely and densely punctate 

 and covered with white pubescence, sometimes a median bare line; 

 labrum reddish brown. Antennae extending below humeri, apical 

 joints widened, seventh joint long, reddish brown, the apical joints 

 often deep brown. Prothorax not much wider than long, strongly 

 convex, with a decided convexity in middle, sides slightly rounded, 

 punctation dense, shallow, in places coarse and often a remnant of 

 bare line down the middle; pubescence white, fine, and arranged in 

 feathery pattern from middle, not horizontally but downward, 

 becoming more horizontal on sides. Scutellum broad and rather 

 short, with a few fine white hairs. Elytra elongate, not much wider 

 than prothorax, with well-marked intrahumeral depression, no 

 depression near scutellum but a slight transverse one below intra- 

 humeral sulcus; punctation coarse, not so dense as on pronotum and 

 covered rather densely by moderately coarse, closely appressed long 

 hairs; considerable horizontal ridging in basal half on disc. Body 

 beneath covered with coarser and denser white hairs, legs reddish 

 brown. Length 7-9 mm.; width 3.2-4.3 mm. 



Type: In U.S. National Museum, with 2 paratypes. 



T}^pe-locality : Esperanza Ranch, Brownsville, Tex. Also collected 

 at Brownsville, June 25, 1930, by J. O. Martin, and taken on a plane 

 at Brownsville, June 24, 1948. 



Remarks: This species differs from the other United States species 

 of Glyptoscelis and resembles many species from Mexico and Central 

 America and even South America by having remnants of a median 

 bare line on the pronotum. It differs from G. mexicana Jacoby in 

 having a lustrous and not dull opaque surface. There is no pro- 

 longation at the tip of the elytra. 



Key to Mexican and Central American Species of Glyptoscelis 



1. Elytra with tips narrowly prolonged 2 



Elytra with tips not prolonged 3 



2. From 8 to 10 mm. in length with long tip to elytra (Nicaragua). 



chontalensis Jacoby 

 About 7.5 mm. in length with shorter tip to elytra (Guatemala). 



guatemalensis, new species 



