BEETLES OF THE GENUS MYOCHROUS — BLAKE 33 



Type locality. — Coalinga, Fresno County, Calif., Boy Scout Camp. 



Other localities. — Los Banos, Calif. (E. P. Van Duzee, May 23, 

 1918) ; 2 miles east of Cressey, Merced County, Calif. (B. E. "Wliite, 

 Sept. 13-18, 1940). 



Remarks. — Although closely related to M. longulus LeConte, this 

 species seems quite distinct. It is smaller and a little more convex, 

 with shorter elytra and paler scales. The aedeagus is less acutely 

 tipped than that of M. longulus. So far it has been collected only 

 in the San Joaquin Valley of California, which is farther north than 

 longulus has been found. Burdette E. White, for whom it is named, 

 had collected the beetles in numbers and set them aside to describe 

 as new. He writes that he found them "on the outer fringe of a 

 sandy marsh consisting of two or three species of reeds and a 'salt 

 grass,' probably Bermuda grass, from which most of the specimens 

 were swept. This marsh is green nearly the year around, as the water 

 source is from an artesian flow, adjacent to the Merced River." 



MYOCHROUS FEMORALIS Jacoby 



Plate 3, Figure 8 



Myochrous femoralis Jacoby, Biologia Centrali-Americana, Coleoptera, vol. 6, pt. 

 1, p. 175, 1882. 



From 5 to 7 mm. in length, oblong, dark piceous, shining with a 

 bronzy luster through the grayish and brown scales, prothorax broad, 

 3-toothed, densely but not confluently punctured with round deep 

 punctures. 



Head covered with brown and gray scales down to the antennal 

 sockets, no distinct median line, the punctures tending to be in lines, 

 and the surface beneath the scales rough, a ridge on each side of 

 occiput. Antennae reddish brown, of the usual proportions. Protho- 

 rax somewhat wider than long, smoothly convex with a slight median 

 basal depression over the scutellum; the three lateral teeth well 

 developed, and the usual apical and basal teeth ; surface densely but 

 not confluently or rugosely x^unctate, the punctures being round, deep, 

 and not very coarse. Elytra without marked depressions, smoothly 

 convex, covered by dense gray and brown scales, not entirely con- 

 cealing the punctation below, the scales somewhat curved and not 

 too closely appressed. Striate punctures regular, without ridging. 

 Body beneath covered lightly with fine white scales, punctures on 

 first abdominal segment coarse and moderately dense. Hind femora 

 distinctly toothed, anterior tibiae with the usual tooth. Length 5.2 

 to 7 mm. ; w^idth 2.5 to 3 mm. 



Type. — A single specimen in the British Museum, collected by 

 Blancaneaux. 



Type locality. — British Honduras, River Sarstoon. 



Other localities. — Nicaragua, Escondido River, 50 miles from Blue- 



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