312 PROCEEDINGS OF THE NATIONAL MUSEUM VOU 87 



NAUCLES BASALIS Champion 



Nancies basalis Champion, Biologia Centrali-Americana, Coleoptera, vol. 4, pt. 2, 

 p. 258, 1891. 

 Six specimens : Four from Tampico, Mexico, February 16 (3) and 

 December (E. A. Schwarz) ; two from Progreso, Yucatan, Mexico, 

 June 7 (F. Knab) . 



NAUCLES FASCIATA, new species 



Superficially this species resembles Anfhohatula quadriguttata 

 Champion (1891, p. 255), but the much smaller size, the entirely dif- 

 ferent character of the maxillary palpi and antennae, and the five 

 visible ventral abdominal segments adequately distinguish fasciata 

 from quadriguttata. This species is unquestionably a species of the 

 genus Naucles and may easily be separated from the four previously 

 known members of the genus by the difference in the length of the 

 various antennal segments, the maculation of the elytra, and the 

 larger size. 



Length : 1.7 mm. Form oblong-bvate, rounded anteriorly and pos- 

 teriorly, broadest near middle of elytra. Derm flavous, eyes black, 

 nine distal segments of antennae, mesosternum and metasternum and 

 ventral abdominal segments f uscocastaneous ; elytra with base, suture, 

 except apical sixth, lateral margin, except broadly rounded apical 

 portion, and a broad, postmedian, transverse band, fuscous. Body 

 densely covered with fine, recumbent, flavous pubescence. 



Antennae 0.5 mm. long, reaching intermediate coxae; segment 2 

 twice as long as 1; 3 slightly longer than 4; 4-6 equal 7-10 broad- 

 ened, forming a loose, elongate club, each segment distinctly broader 

 than long; 11 as long as 10, but narrower, broadest subbasally, sides 

 and apex rounded. Distal segment of maxillary palpi enlarged, 

 elongate, with form of a scalene triangle, apical margin very 

 obliquely truncate, corners and sides rounded; terminal segment of 

 labial palpi slender, apical half prolonged, acuminate. Pronotum 

 distinctly broader than long (0.65 by 0.45 mm.), apex and sides 

 broadly rounded in a continuous semicircle, broadest at base, basal 

 angles acute, base arcuate, midbasal lobe short, but rounded; entire 

 surface covered with fine, transverse strigae. Scutellum moderately 

 large, semicircular. Elytra almost two-thirds longer than broad 

 (1.25 by 0.8 mm.), lateral margin distinctly curved, broadest sub- 

 medially, apical fourth broadly rounded, apices individually curved ; 

 basal fourth of surface faintly covered with transverse strigae. Pe- 

 nultimate and antepenultimate segments of anterior and intermediate 

 legs much shortened, as broad as long. Tarsal claws with but the 

 single distal prolongation. 



Type locality. — Ponce, Puerto Rico. 



ry;?e.— Female, U.S.N.M. No. 52921. 



