316 FAIIILT X. ^PSELAPHID.?;. 



h. Three basal foreie of thorax connected by a curved 

 groove ; elyti'a each with a deep subhunieral groove. 



XI. Eybasis. 

 hJi. Basal fove;e of thorax not connected by a groove; ely- 

 tra without a subhumeral groove. 

 I. Elytra with margins and sloping sides nearly parallel : 

 male with three of the dorsal segments sculptured. 



BBACHYGLtTA. 



/('. Elytra with sides diverging; male with not more than 

 two segments sculptured. XII. Bkyaxis. 



gg. Elytra each with three small basal fovese: thorax with a 

 large pubescent fovea each side of base and a small 

 roimd median one. XIII. Eeichexbachia. 



ff. Antennse very short, with only the last joint enlarged; ver- 

 tex with two fovece; body glabrous. Eupsexius. 

 cc. Body convex ; margin of abdomen narrow ; thorax with L.ne fovea 

 at base. Aye h yt.a rthbok. 

 66. Abdomen not margined ; tarsi with two unequal claws : thorax with 

 two or three longitudinal gnioves: body elongate, more or less 

 cylindi'ical, narrow. XIY. Batbisodes. 



X. Decaethrox Breud. 1S65. i Gr.. "ten + joint. ") 



Head with disk of vertex longer than wide, the front fovea want- 

 ing: antennae 30-jointed. the joints, aside from those in club, 

 rounded; thorax snligiohose and with a single funnel-shaped fovea 

 near the middle of the base: eh-tra broad, each with two basal 

 fovese, the humeri prominent ; abdomen short and wide, the basal 

 dorsal segment with twn distant parallel carinae. One .species has 

 been taken in the State, while three others may occur. 



KEY TO IXDIAXA SPECIES OF DECARTHKOX. 



a. Form of body broad, robust. 

 6. Pubescence long. ere<.t. 



e. Color black ; fovete of vertex large and connected with the de- 

 pressed front by faint converging grooves; length 1.4 mm. 



ABXORME. 



CC. Color dark red ; fove;o of vertex small, connected with the convex 



front by straight parallel grooves ; length 1.6 mm. exsectum. 



66. Pubescence short; occipital fovea? deep, well separated, not connected 



with the concave front : length 1.4 mm. i.i02. bhexdeu. 



aa. Form slender, elongate; thorax not punctate; color pale reddish-brown: 



length 1.5 nun. loxgulim. 



OOl' (0373). Decakthuox brendeei Casey, Bull. Cal. Acad. Sci.. II. ISST. 

 464. 

 Piceous brown : elytra dull red ; autenme and legs paler brown. Au- 

 tennaj scarcely as long as liead and thorax, eighth and uiuth joints trans- 

 versely oval, tenth oue-half longer than wide and three times as thick as 



