390 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 93 



Genus ENDOMYCHUS Panzer 



ENDOMYCHUS FLAVUS, new species 



In shape this species resembles those referred to Cyanauges by 

 Gorham. Antennae a little longer than head and pronotum, all its 

 joints longer than broad, joints 9 and 10 obconical, joint 11 oval, 

 scarcely longer than 10; these three joints form a distinct but little 

 flattened club. Basal foveae of pronotum deep, continued anteriorly 

 as curved grooves, which reach to middle of disk; basal sulcus 

 broad and shallow; hind angles subacute; the sides of pronotum 

 feebly sinuate in front of hind angles, convergent anteriorly; front 

 angles a little produced, rounded. Elytra hardly wider at base than 

 pronotum, rapidly broadened to middle, thence gradually convergent, 

 the apical portion of the elytra subattenuate. Clear reddish yellow, 

 with the clypeus, eyes, antennae, legs, and two small spots on each 

 elytron black. The first elytral spot is placed behind the umbo and the 

 second in the same longitudinal line. The distance between the first 

 and second spots is about equal to that between the first spot and the 

 base of elytron, and both spots are closer to the lateral margin than 

 they are to the suture. Head finely and thickly, pronotum and elytra 

 finely and very sparsely, punctured ; entirely glabrous above. Under 

 surface of same color as upper, finely pubescent. The maxillary palps 

 are black, the last joint hatchet-shaped {Endomychus s. s.). Length 

 4.5 mm., width 2.5 mm. 



Type.—U.S.'NM. No. 55890. 



Type locality. — Near Mupin, Szechwan, China (D. C. Graham). 



Genus PARASYMBIUS Arrow 



PARASYMBIUS MACROCERUS, new species 



Figure 12, i, J 



Characters of the genus as defined by Arrow, tarsi long, filiform, 

 quasi-3-jointed. Antennae with club joints greatly enlarged and elon- 

 gated, joint 1 stout, curved, joint 2 longer than broad, joint 3 very 

 slender, joints 4 to 7 progressively broader, joints 8 and 9 obconical, 

 three times as long as broad, joint 10 about as long as 9, rounded at 

 tip; the club joints (8 to 10) together are considerably longer than 

 the footstalk of antenna (joints 1 to 7). Joints 5 to 10 black, others 

 piceous. Pronotum transverse, rather broadly margined, narrowed 

 before and behind, basal sulcus deep, curved, lateral impressions broad 

 posteriorly, extending anteriorly to the middle of disk, which is finely 

 and very sparsely punctured. Elytra roundly convex, as wide at base 

 as pronotum, considerably widened at middle, roundly convergent 

 behind, finely and sparsely punctured. The insect is entirely ferrugi- 



