166 WILLIAM J. FOX. 



% .—Cheeks striated from the eyes baekward instead of from top to bottom as 

 is usually the case, strougly depressed below and produced posteriorly into a 

 strong tooth or prominence ; anterior margin of clypeus somewhat rounded out, 

 not dentate laterally, in the middle slightly emarginate ; scape short, hardly one- 

 quarter times longer than the space between the eyes at the base of clypeus ; first 

 joint of flagellum small, not dilated or produced, in length about as long as the 

 pedicellum, joints 2-6 with a large appendage on outer edge, that on joints 2-4 

 somewhat curved, and pointed at apex, that on second joint narrowest and most 

 curved, that on sixth broadest and not at all curved, four apical joints shorter 

 , than the three preceding ones united ; thorax somewhat more coarsely sculi)tured 

 than in the female, the epimerum mesopleuralis, however, smooth, impunctate. 

 separated from mesosternum by a distinct furrow, which is strongest anteriorly ; 

 medial furrow of posterior face of middle segment larger than in 9 ; ^^'st joint 

 of medial tarsi fully twice as long as the remaining joints united; base of fore 

 femora outwardly terminating in a long, slender production : tibial shield long, 

 pointed apically, the outer margin once sinuated, the opposite margin revolute, 

 in color greenish yellow basally, dotted with paler, otherwise brownish, also dotted 

 with yellow ; first joint of fore tarsi more than twice as long as the remaining 

 joints united ; colored like the 9 , but differing as follows : medial legs entirely, 

 greater part of fore femora,, yellow; spots on pronotum sometimes wanting; 

 mesosternum with a dense white pubescence, hind femora with a black spot ex- 

 ternally. Length 9-10 mm. 



Canada (Harnngtoii) ; Maine (Packard); New Hampshire: 

 Francoiiia (Mrs. Slosson); Long Island, New York (Ashniead); 

 AVashington. The specimen of latter locality may be labeled erro- 

 neously, as I have seen no specimens from intermediate localities. 

 The 9 , of which I have examined but one specimen collected by 

 Mrs. Slosson, is difficult to separate from C. cmgidatus of the pre- 

 ceding group. The absence of maculations on scutellum and meta- 

 notum, small spots on pronotum, dark spots on the tibise within, 

 darker wings and smaller maculations of abdomen will aid in dis- 

 tinguishing this species. The <? is too distinct to require comment. 



42. <'rabro tenuis n. sp. 



^_ — Head with tine, tolerably close punctures, though not so close as in the 

 preceding species of this section; space between hind ocelli about equal to or 

 slightly less than that between them and the nearest eye-margin ; clypeus rather 

 longer than usual, the anterior margin strongly rounded out ; pronotum not ridged 

 anteriorly, angular at the sides, but not dentate ; dorsulum with fiiie, rather close, 

 even punctures, those on the epinrerum mesopleuralis stronger and sparse, the 

 episternal suture distinctly though not very strongly foveolate ; middle segment 

 above with coarse ridges curving toward the sides, the medial furrow unusually 

 broad and shallow, posterior face rugose at apex only, the lateral ridges well de- 

 veloped, sides with a rather fine striation. Black ; basal half of mandibles, cly- 

 peus more or less, scape anteriorly, two spots on pronotum, tubercles, scutellum 

 more or less, fore and medial tibiae except a spot within, basal portion of hind 

 pair, first joint of tarsi, sinuated spot on each side of first abdominal segment, 

 broad spot on second narrow, somewhat sinuated spot on each side of third to fifth, 



