OF WASHINGTON, VOLUME XIX, 1917 133 



metopus, figures the Texan E. costatum and records its occurrence 

 at two localities in Guatemala. He remarks "the species of this 

 genus are probably riparial rather than aquatic in their habits." 



1883. LeConte & Horn (Class. Col. N. A., p. 71) recognize the synonymy 

 of Sepidulum with Epimetopits and place the genus among the 

 Helophorinae. 



1890. Sharp (Trans. Ent. Soc., London, p. 355) describes Epimeto/mx 

 flavidulus from Kandy, Ceylon (one specimen). 



1903. Regimbart (Ann. Soc. Ent, Fr. LXXII, p. 338) describes Epi- 

 metopus maindroni n. sp. from the moat of the fortress of Gengi, 

 southern India. 



1908. Schwarz (Proc. Ent, Soc. Wash., vol. 9, p. 115) alludes to struc- 

 tures of the Epimetopus from Arizona. 



1914. Schwarz (Proc. Ent, Soc. Wash., vol. 16, p. 165) lists Epimetopus 

 nov. spec, among the species occurring in the middle course of 

 the warm stream. 



1916. d'Orchymont (Ann. Soc. Ent. Fr., vol. 85, pp. 101 and 105) pro- 

 poses eight subfamilies of Palpicornia, the third and fifth being 

 respectively the Spercheinae and Epimetopinae, the latter being 

 suggested provisionally on adult characters since its larval stages 

 are unknown. 



Spercheus stangli n. sp. 



Shining, coarsely punctate with sparse short erect squamae, piceous, 

 the elytra variegated with fine irregular pale markings and each with 

 three tubercles in addition to the humeral umbone. Length 3? mm. 



Habitat: Philippine Islands. 



Head with sparse squamiferous punctures, margin deflexed at middle and 

 straight for one-third width of head, thence elevated into a marginal 

 flange which extends obliquely backward and encroaches slightly onto the 

 eye. Pronotum two and one-fourth times as wide as long, widest at apical 

 third, front angles a little produced anteriorly, side margins arcuate to mid- 

 dle, thence straight to hind angles which are obtuse; base feebly sinuate close 

 to hind angles and at lateral third; surface smooth, impunctate and highly 

 polished basally, becoming coarsely punctate in the lateral depressions and 

 on the pair of transverse anterior median callosities which arc separated 

 by a median impressed line obsolete in median third. Klytra about 

 four-fifths as wide as long, widest at basal third, with side margins strongly 

 expanded laterally, evenly rounded in basal half, thence straight and con- 

 vergent to near apices which are strongly and not conjointly rounded; 

 surface coarsely, closely, subseriately punctate, with a very pronounced 

 pair of gibbosities near suture at apical fifth, aunt her nearly as pronounced 

 just behind middle and about halfway between suture and margin, and a 

 less conspicuous pair at basal sixth and half way between the suture and 

 the very prominent humeral gibbosity. Tibiae 6-carinate. 



