SOME ENDOMYCHID BEETLES STROHECKER 383 



and elytra finely and sparsely punctured and finely alutaceous. Each 

 puncture bears a minute seta. Thorax with sides almost straight, con- 

 vergent from the acute hind angles to the acutely produced front 

 angles, narrowly margined. Lateral sulci deep, curved, and reaching 

 almost to middle of disk, basal sulcus broad, deep. There is a circular 

 depression within the hind angle. Scutellum as long as broad, 

 rounded behind. The elytra are slightly depressed at the scutellum, 

 elongate, little wider at base than the pronotum but broadening grad- 

 ually to posterior third, thence evenly convergent; tips separately 

 rounded. Legs long and slender, femora subclavate. Length 4.75 

 mm., width 2.6 mm. 



Type.— Female, U.S.N.M. No. 55880. 



Type locality. — Tat-sien-lu, Szechwan, China (D. C. Graham). 



A single male specimen, allotype (author's collection), closely re- 

 sembles the type but is a little larger, has the sides of the pronotum 

 straight, and the front tibia bears a low, blunt tubercle on its inner 

 face at the distal third. Data same as for type. I have not used the 

 male as the type because all its tarsi are damaged. This distinctive 

 species is unusual for a Mycetina, but the mouth parts and triangular 

 mesosternum lead me to refer it to that genus. It belongs to the sec- 

 tion that includes Af. niarginalis (Gebler) [= obliquesignata Gorham] 

 and the species that have been referred to Phaeomychus. 



Genus ENGONIUS Gerstaecker 



ENGONIUS EXCISIPES, new species 

 FlGUKE 12, h 



Highly convex for the genus, glabrous, moderately shining, of 

 bronzy color, each elytron with a small yellow spot on the posterior 

 part of the humeral callus and another of equal size at the same level 

 and halfway between the callus and suture, and a yellow crossbar 

 behind the middle. The crossbar is bidentate anteriorly and uniden- 

 tate (internally) posteriorly and is equally removed from the lateral 

 margin and suture. Antennae black, slender, joint 3 twice as long as 4, 

 club broad, flattened but hardly compact. Antennal ridges of head 

 very prominent. Pronotum strongly transverse, its front angles pro- 

 duced and acutely rounded, sides narrowly margined, rather deeply 

 sinuate behind the middle, hind angles divergent and acute. Basal 

 foveae very deep and short, basal sulcus fine and deep. Disk of pro- 

 notum finely, sparsely punctured, the punctures thicker and coarser 

 at sides. The front margin has a very broad membrane. Elytra 

 strongly elevated, markedly depressed around the scutellum and 

 anterointernal to the humeral callus, rather coarsely and closely punc- 



