BEETLES OF THE GENUS MYOCHROUS — BLAKE 29 



not SO deep. The punctures on the elytra appear a little less spaced. 

 The aedeagus seems to have a little less rounded tip with a slightly 

 broader point. The aedeagus resembles somewhat that of M. tibialis 

 Jacoby, from Mexico, which is another of the reddish-brown species, 

 but which is larger and flatter with less dense punctation. 



Type and paratype. — Type male and one paratype, U.S.N.M. No. 

 59023. 



Type locality. — Columbia, Tex. 



MYOCHROUS MAGNUS Schaeffer 



Plate 2, Figure 4 

 Myochrous magnus Schaeffee, Journ. New York Ent. Soc, vol. 12, p. 228, 1904. 



From 6 to 8 mm. in length, elongate oblong, deep reddish brown, 

 shining under the dense and closely appressed yellowish scales ; pro- 

 thorax almost as long as wide, 3-toothed, punctation not very coarse 

 and not confluent, but dense ; elytral punctation fine and well spaced. 



Head with a depressed furrow from occif)ut down front, and a ridge 

 on either side of occiput ; thickly covered with scales only slightly less 

 dense on the lower front; surface beneath scales obsoletely and 

 rugosely punctate. Antennae yellowish or reddish brown, extending 

 to below the humeri, of the usual proportions. Prothorax almost as 

 long as wide, rather inconspicuously 3-toothed with a tooth also at 

 apical and basal angles; smoothly convex with a slight depression 

 along the basal margin and often a small median parting on anterior 

 margin over the furrow on the head ; disk densely and not coarsely or 

 confluently punctate. Elytra with prominent humeri, with a basal 

 callosity and sulcus within the humerus and transverse depression 

 below the callosity, in some specimens two indistinct costae running 

 down over the basal callosity on each elytron ; punctation not visible 

 through the dense and closely appressed scales, which are rather coarse 

 and yellowish with a few slightly darker scales intermixed ; the punc- 

 tation beneath unusually fine and well spaced. Body beneath rather 

 densely covered with finer scales, in dark specimens the abdomen dark 

 with the tip usually reddish. Hind femora with a blunt tooth, anterior 

 tibiae with the usual tooth on the inner side. Length 6 to 8 mm. ; width 

 2.5 to 3.4 mm. 



Type. — In the United States National Museum. 



Type locality. — Esperanza Ranch, Brownsville, Tex. 



Other localities. — Mississippi: Brookhaven (on elders) ; Louisiana: 

 10 miles up the river from New Orleans (on willows) ; Texas : Colum- 

 bus. Also intercepted on fruit from Mexico. 



Remarhs. — This species, described from Brownsville, Tex., is the 

 largest species of Myochrous in the United States. It is probably 

 common in northern Mexico, as it has been intercepted in fruit from 



