Vol. 35, pp. 133-134 October 17, 1922 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



:^ 



NEW SPECIES OF CALLIMERUS FROM MINDANAO, 

 PHILIPPINE ISLANDS. 



BY EDWARD A. CHAPIN. 



Owing to the premature publication of the names "Cal- 

 limerus persimilis Chapin" and ''Callimerus bakeri Chapin" in 

 an exchange Hst of coleoptera, the present descriptions are 

 offered to vahdate them. 



Callimerus persimilis, n. sp. 



General appearance, form and size as in C. albescens Chpn., from which 

 the present species differs markedly in the genital characters. Black, 

 almost entirely clothed above with white scales; legs, antennae, mouth- 

 parts and sometimes abdomen pale. Head, except for the labrum and 

 underside, very densely clothed with scales, finely alutaceous above, smooth 

 beneath, antennal club very lax, terminal segment oval. Thorax almost 

 cylindrical; apical and basal transverse impressions broad and shallow; 

 lateral dilations feeble, the width at the extreme base being almost equal 

 to the width across them; on the disc there is a shallow depressed area 

 followed by a smooth median line which reaches to the basal marginal bead, 

 surface, except on the smooth line, with coarse, scattered punctures. Ely- 

 tra with the punctures of the basal half arranged in rows, these rows fail 

 entirely beyond apical fourth, surface as it appears at the nude spots finely 

 alutaceous, almost entirely covered with white scales, the scales being absent 

 at almost the same places as in C albescens. Under-parts finely wrinkled, 

 laterally with white scales. In one specimen, a female, the abdomen is 

 pale. Legs long and slender, claws with small basal lobe, almost simple. 

 Hind tibiae without subapical notch. 



Male : Fifth ventral abdominal segment with a broad and shallow emar- 

 gination, sixth ventral similar to fifth, terminal dorsal evenly rounded, lobes 

 of penis sheath with external hook-like processes on external side. 



Female: All ventral segments with simple, unmodified margins. 



Length: 6.5-7.5 mm. 



Type: A male from Surigao, Mindanao (C. F. Baker No. 16293). Para- 

 types: one male and two females from Surigao (C. F. Baker No. 14725), one 

 female from Kolambugan, Mindanao (C. F. Baker). 



29— Pkoc. Biol. Soc. Wash., Vol. 35, 1922. (133) 



