BEETLES OF THE GENUS MYOCHROUS — BLAKE 25 



scales. Antennae extending below the humeri, dark reddish brown, 

 third joint longer than fourth, distal joints thicker. Prothorax def- 

 initely wider than long with the widest part anteriorly an angularity, 

 scarcely a toothing, on each side below the middle, and a small tooth 

 at apical and basal angles ; disk convex in the middle and a little de- 

 pressed over the head; punctures confluent with fine longitudinal 

 ridges, a similar sort of elevation on sides near the base as in M. inter- 

 medius; scales easily rubbed off. Elytra with sharp humeral prom- 

 inences and an intrahumeral sulcus ; rows of striate punctures coarse 

 and round and closely placed in basal half, becoming finer and less 

 dense toward apex; scales broad and appressed and concealing the 

 punctation. Body beneath shining bronzy with fine white scales ; legs 

 reddish brown ; no definite toothing on hind femora, front tibiae with 

 a small tooth on inner side, not so much developed as in most species ; 

 first abdominal segment finely and rather densely punctate ; abdomen 

 of male alone depressed at the tip. Length 4.2 to 4.T mm, ; width 1.8 

 to 2.2 mm. 



Type. — A male, from the Schaeffer collection, in possession of H. S. 

 Barber, Washington, D. C. 



Type locality. — Esperanza Ranch, Brownsville, Tex. 



Other localities. — Los Borregos, Brownsville, collected by H. S. 

 Barber, June 5, 1904. 



Remarks. — This is the fourth of the squamosus group, which in- 

 cludes also M. intermedium and M. severini. They differ from most 

 species by not having a 3-toothed thorax and by having very poorly 

 developed toothing on the anterior tibiae. In this species the thorax 

 is very broadly dilated anteriorly and more angular below the middle, 

 and it also differs from the rest of the group by having round and not 

 star-shaped or angular elytral punctures. Beetles of this species have 

 been collected only about Brownsville, Tex. 



MYOCHROUS RANELLA, new species 



Plate 2, Figure 5 



From 3 to 5 mm. in length, broadly oblong, convex, shining black, 

 sometimes with a bronzy luster beneath the rather broad brown and 

 white scales. Prothorax almost as broad as the elytra, with a 3-toothed 

 margin, convex and pinched in behind the eyes and depressed along 

 the basal margin. Thoracic punctation fine, dense, and in longitudi- 

 nal, confluent lines; rows of elytral punctures not so crowded as in 

 denticollis. 



Head with widely separated eyes, covered by scales down to the 

 antennal sockets, beneath the scales the punctures dense and in lines ; 

 no trace of a median vertical depression, a ridge on each side running 

 down over the occiput above the eyes ; lower front shining under the 



