1903.] COLEOPTEEA OF THE PERCY SLADEN EXPEDITION. 251 



Clavipalpus tenuis, sp. n. (Plate XXYIII. fig. 2.) 



Elongatus^ convexus, ru/o-castaneics ; capite parvo, crehre punc- 

 tata, clypeo paraholico, viargine leviter reflexo ; prothorace 

 p)olito, profunde irregidariter punctata, later ibus valde angu- 

 latis, angulis anticis et posticis abtusis ; scutello utrinque 

 leviter punctata ; elytris haud regulariter striato-punctatis, 

 interstitiis oninutius haud crehre picnctulatis, fbemince inter- 

 stitia secunda lata grasse punctata-rugosa ; pygidio convexa, 

 crehre punctata, linea media Icevi ; carpare subtus laterihusque 

 fidva-pilasis, segmenta ahdominali 5'^ maxima ; antennis 

 10-articitlatis, maris clava laiigitudine ad stipitem mquali; 

 tihiis anticis 3-dentatis, unguihus omnihus Jissis, Tnaris tar sis 

 anticis et pasticis qitam tihiis p)lus dupla langioribtis. 

 Lang. 22-13 m,m. 



This is a more slender insect than any other species of Clavi- 

 palpus known to me, but conforms in all essential particulars to 

 the generic type. It is smooth and shining on the xxpper siu-face, 

 with rows of deep bvit rather irregular punctures upon the elytra. 

 The head is small and the clypeus regularly rounded, the pro- 

 thorax very convex and much narrowed in front and behind, and 

 the elytra long and of approximately equal width throughout 

 their length. The antennae are ten-jointed, but the articulation 

 between the 5th and 6th joints is less distinct in the female than 

 in the male. The former sex appears in this genus to be less 

 easily found than the male, and I believe has not hitherto been 

 described. The enlargement of the terminal joint of the maxillary 

 palpus, from which the genus has received its name, occurs in the 

 male only, but in the present species this joint is of normal size 

 in both sexes. In all the species the 5th ventral segment is very 

 large in the female, and the distinction drawn by Lacordaire 

 between the Macrodactylides and Clavipalpides (viz. the absence 

 of this enlargement in the latter) is therefore misleading. The 

 segment is enlarged in both sexes, but especially in the female. 



HOPLOPACTUS LATERALIS, sp. n. (Plate XXVIII. fig. 3.) 



Elongata-ovatus, fuscus, squa/mis griseis vel sulphureo-cinereis, 

 (Bqualiter sed haud dense ahtectus, margine laterali sparse 

 viridi-squamosa, squamis marginein intus attingentihus densitcs 

 aggregatis, viridi-argenteis, carpo^ns subtus squamis vh^idibus 

 et rosea-argenteis, abdomine medio denudata ; capite lata, 

 rostra breve, antice vix angustato ; prothorace transversa, 

 laieribus cequaliter arcuatis ; elytris punctata-striatis, margine 

 obsGuriare irregulari, patdlo ante apicem subita dilatata ; 

 pedibus rufo-fuscis, griseo-setosis, squamis pallide viridibus 

 i7itersp)ersis, femarihus magis fuscis, anticis intus spiiio acuta 

 post medium armatis. 



Long, [rostra excl.) 8-9 mm. 



This is the sixth species so far assigned to the genus, and is 

 easily recognisable by the dark external margin of the elytra 



