376 AMERICAN PACHYBRACHYS (cOLEOPTERA) 



shade of brown and quite diffuse, in some specimens suffusing the entire disk. 

 The standard spots are sometimes moderately distinct along the elytral mar- 

 gin, the inner ones, however, rarely if ever so, the two anterior ones frequently 

 absent, and broadly suffused if present; the posterior one apparently always 

 present and more or less confluent with the marginal spot to form a more or 

 less defined transverse fascia on the convexity. The punctuation is even 

 more diffuse than in jemoratus, but varies much. In some females the punc- 

 tures are broadly confused over the greater portion of the surface, there being 

 but faint evidences of striae and these only at the rear; in other examples the 

 lines of punctures are more evident, but they — including even the submar- 

 ginal stria — are not appreciably impressed, or at most only lightly so behind. 

 The lateral interspace is almost always wider than the adjacent one, and this 

 though a somewhat trifling character is perhaps one of the most reliable. 



Length 2.8 to 3.2 mm.; width 1.5 to 1.8 mm. 



Distribution. — Florida: Lake Mary; Haulover, Mar. 10 (Schwarz); Enter- 

 prise (Liebeck Coll.); Key West and "P. Orange," Mar. 17 (Leng Coll.); 

 Jacksonville (Ashmead — in Nat. Mus. Coll.). 



My conception of this species is based on a Suffrian tj-pe sent 

 to Bowditch, and all similar examples thus far seen by me are 

 from Florida. This Suffrian type looks quite different from the 

 darker northern form of femoratus, but toward the south the 

 two approach each other so closely that it is next to impossible 

 to draw any definite line between them, and it may yet be 

 necessary to reduce character isticus to varietal standing. 



60. Pachybrachys subfasciatus LeConte 



Black, prothorax with sides, and elytra with a more or less 

 broad irregular or indented transverse median fascia often inter- 

 rupted at suture, and apical spot, red or yellow; disk of prothorax 

 often, and head more rarely variegated with reddish yellow. 

 Eyes distant by but little more than the length of the basal anten- 

 nal joint in the male, and by about twice the length of the basal 

 joint in the female; front without ocular lines; front claws of 

 male distinctly enlarged. Ave. length 3 mm. Massachusetts to 

 Missouri and Louisiana. 



Head not at all wider than the thoracic apex, moderately closely punctatC) 

 usually entirely l:)lack, rarely — especially in the male — with pale markings. 

 Eyes much less widely separated than the vertical width of their upper lolics 

 in the male, a little more widely distant than the width of the upper lobes 

 in the female. Antennae three-fourths (c?) or one-half ( 9 ) the length of the 

 body, tenth joint three times as long as wide or a little less in the male, basal 

 and outer joints blacki.sh. 



