CALFFOIiXIA ACAnKMV OF SCIKXCE.^. 2o 



roumlt'd; sides panillel, nearly straight; epistoma rather strongly produced, 

 broadly and very feebly arenate at the apex; antennal tubciculations niimite 

 and slightly prominent; labrnni rather large teeth minute, very acute; an- 

 teuu;e slightly shorter than the head and prothorax together, second joint 

 two-thirds as long as the third and scarcely longer th:iu the fourth; oeciijut 

 rather convex, somewhat finely, evenly and sparsc-lj- punctate; punctures 

 round and rather deep; medi;in impuuctate area rather l)r lad. equal through- 

 out, well-marked. Prothorax quadrate, just visibly narrower than the head; 

 sides parallel and nearly straight; base broadly, rather strongly and evenly 

 arcuate; apex broadly and very feebly so; nuchal sinuatiou very feel)le, two- 

 tifths as wide as the disk; apical and basal angles rather broadly and nearly 

 eqiaally rounded; disk transversely, evenly and rather strongly convex, finely 

 margined along the base, very finely, feebly and somewhat sparsely punctate 

 iu the middle, twice as densely so at the sides; median impuuctate area equal 

 throirghout, moderately wide, with a very line feeble median str:a near the 

 base. Elijira at base distinctly wider than the prothorax; sides parallel and 

 feebly arcuate; together broadly, sub-angularly and distinctly sinuate behind 

 disk one-fourth longer than wide, nearly one-half longer than the pronotum, 

 feebly impressed along the slightly elevated suture, rather finely, densely, 

 strongly and rugulosely punctate, the punctures being iu transverse wavy 

 series near the apex. Abdomen slightly narrower than the e'ytra; sides par; 

 allel and nearly straight; surface very minutely, densely and sub-asp.-rately 

 punctate. Z/cr/s rather long and sleu ier; first joint of the posterior tarsi one- 

 half longer t!ian the second, shorter than the next two together, fully as long 

 as the fiftii; anterior tarsi very sliglitly dilated. Length 4.3 mm. 



Sair Mateo Co., 1 o (Mr. Fuclis). 



Tlio fifth segiiieiit is very broadly cniargiiiate nearly 

 throughout its width at apex, the sides of tiie notch being- 

 straight, very strongly convergent, and each having a fringe 

 of seven stout, equal and closoly-])laced spinules; nic;dian 

 porrected process vor\' short and broad, very strongly sin- 

 uate at the apex; sixth segment parabolically einarginate at 

 apex, notch nearly twice as wichi as deep; seventh broadly 

 divided, incisure in the form of a very elongate acute tri- 

 angle. 



This species is remarkable for the utuisualiy elongate 

 basal joint of the posterior tarsi, which, howtjver, comes 

 well within the generic definition. It bears a considerable 

 resemblance to cotisaivjiiinea, but ditCers iu the narrower 

 form, and especially in the form of the pronotiim, wiiich is 

 as huig as wide in the ])resent species and sliglitly, tlioiigh 



