1919] Californian Species of Malthodes 39 



above which it Hes, horizontally flattened and notched at tip, 

 and on either side of this a very slender straight needle like 

 process. 



Malthodes obductus sp. nov. 



Brownish testaceous, thorax yellowivsh, disc clouded with fuscous. 

 Antennae as long as the body in the male, fuscous, the basal joints 

 paler; joints two and three subequal, four a little longer, intermediate 

 joints about three and one-half times as long as wide. Head obviously 

 wider than the thorax in the male, the eyes only moderately prominent. 

 Thorax moderately transverse, sides straight and parallel or very 

 nearly so, side margins fine, not thickened at the front angles. Length 

 2 mm. to tip of elytra. 



Abdominal sexual characters. Male: fifth dorsal segment strongly 

 produced, arched, overhanging the terminal segments, broader at tip, 

 which is truncate with rounded angles, strongly carinate beneath 

 except at apex, which is concave; sixth ventral deeply, broadly emar- 

 ginate; seventh strongly produced, deeply notched at apex, in profile 

 bent upward a little at about apical third, the tip again horizontal. 



California. Green Point, Humboldt Co., June 4-7 (Blais- 

 dell); Washington, Seattle (Prof. O. B. Johnson). 



The type is a male from the first named locality. 



In the typical form the apical notch of the seventh ventral 

 is as deep as the terminal width of the segment. In the Seattle 

 males the segment is more deeply cleft, the forks more diverging 

 and the tip of the produced fifth dorsal is a little different. 

 These may represent a closely allied species, but as the sexual 

 modifications are of the same type throughout, I prefer to 

 consider it a varietal form. 



Malthodes bicurvatus sp. nov. 



Fuscotestaceous, thorax entirely yellow, head piceous. Antennae 

 as long as the body in the male, fuscous, scarcely paler basally in fully 

 colored specimens; third joint slightly or scarcely longer than the- 

 second, fourth distinctly longer than the third, intermediate joints- 

 about foru- times as long as wide. Head evidently but not greatly' 

 wider than the prothorax, eyes only moderately prominent. Thorax- 

 moderately transverse, sides straight, finely margined, front angles 

 not thickened. Length (head deflexed) about 2 mm. to tips of elytra. 



Abdominal sexual characters. Male: last visible dorsal segment 

 broadly truncate, the lateral angles produced downward and backward 

 in a rather broad process which is dilated and rounded at tip. Sixth 

 ventral broadly deeply emarginate, the curvature becoming more nar- 

 rowly parabolic at the bottom of the emargination ; seventh ventral 

 narrow, elongate, notched at tip, bisinuate in profile, with a short 

 tooth-like process at middle of upper side. 



