BEETLES OF THE GENUS MYOCHROUS — BLAKE 59 



Type—V. S. N. M. No. 57986, collected in February 1899 by August 

 Busck. 



Type locality. — Arroyo, Puerto Rico. 



Other localities. — Puerto Rico: Lake Guanica (A. Wetmore), in 

 stomach of Oxyechus., May 26, 1912; May 31, 1938, same locality (P. J. 

 Darlington) . 



Remarks. — ^The less coarsely punctate upper surface with no thor- 

 acic ridging distinguishes this from cubensis. 



MYOCHROUS HISPANIOLAE Blake 



Plate 7, Figure 2 

 Myoclirous Jiispaniolae Blake, Proc. Ent. Soe. Washington, vol. 49, p. 24, 1947. 



From 5.5 to 6.8 mm. in length, elongate oblong, shining dark brown 

 to piceous black, with pale scales, thorax with dense, deep, round punc- 

 tures, not confluent or forming ridges or rugosities; elytra densely 

 striate punctate. 



Head covered with scales to antennal sockets, beneath the scales 

 a very indefinite median line ending in the middle of the front in a 

 shallow depression ; coarse, dense, shallow, confluent punctures form- 

 ing a network of irregular lines over the entire front, the usual occip- 

 ital ridges on each side. Antennae yellowish or reddish brown, of 

 the usual proportions. Prothorax not quite so long as broad, nar- 

 rower than in cuhetisis or porforicensis, and with a depression along 

 the basal margin most marked over the scutellum. Lateral margin 

 with three well-developed teeth, disk not very convex and covered 

 with dense, round punctures, not at all confluent or ridged and not very 

 coarse. Elytra with faint basal callosities and a transverse depres- 

 sion below ; punctation dense, not well spaced as in portoricensis^ and 

 with a slight tendency to transverse ridging in the depression near 

 the base. Body beneath shining under the fine, sparse hairlike scales, 

 first abdominal segment rather finely and not very densely punctate. 

 Hind femora with a blunt tooth, anterior tibiae with the usual tooth. 

 Length 5.4 to 6.8 mm. ; width 2.6 to 3.2 mm. 



Type and paratypes. — Type and four paratypes. Museum of Com- 

 parative Zoology, collected September 11, 1934, by P. J. Darlington; 

 one paratype, U.S.N.M. No. 57985. 



Type locality. — Swamps north of Dessalines, Haiti. 



Other localities. — Dominican Republic: Montecristi, June 1938, 

 Sanchez, July 1938, Puerto Plata, August 20 to September 2, 1938 

 (all collected by P. J. Darlington) : Haiti, Etang Lachaux, 1934; 

 Miragoane, October 30 to November 2, 1934; Emery (1,000 feet 

 altitude) September 11, 1934, Trou Caiman, September 4, 1934 (all 

 collected by P. J. Darlington). 



Remarks. — This species appears to be a little more slender than M. 

 c^ibensis and with a narrower prothorax. The sculpture of the head 



