CALIFORNIA ACADEMY OF SCIENCES. 329 



anterioi'ly. Prosternum very short, consisting of a narrow edge in front of 

 the coxte and a slight proce-s between them which is dilated and transversely 

 truncate posteriorly and deeply excavated along the surface. Mesosteruum 

 small, narrowly separating the coxne. produced in the middle in a small pro- 

 cess which is excavated for the reception of the prosterual process, excavated 

 at the sides for the anterior femora; epimera large, attaining the coxfe. Meta- 

 sternum wide, produced posteriorly in a broad trianguLir process separating 

 the posterior coxa; for two-thirds their length; epimera as long as wide, dis- 

 tinct. Anterior coxas very strongly transverse, slightly separated, trochanters 

 small but distinct; middle cox£e transverse, oblique, oval, slightly excavated, 

 trochanters large and distinct; posterior in the form of large plates, nearly 

 attaining the elytra and concealing the femora, in contact behind where the 

 edge is transverse; sides nearly straight and very oblique. Middle and pos- 

 terior tibife dilated toward tip and densely fimbriate at apex with short equal 

 spinules, terminated by two rather small unequal spurs. Tarsi slendei-, all 

 five-jointed; first four joints of the anterior short and nearly equal, last 

 longer; those of the intermediate and posterior tarsi decreasing in length to 

 the fourth, fifth longer; first joint of the posterior longer than the next three 

 together; claws very small. Abdominal segments five in number, decreasing 

 in length. Elytra covering the entire abdomen, navicular; inflexed sides not 

 attaining the tips, suddenly and narrowly dilated toward base. 



But five segments are visible, but in the males there is an 

 indication of a rudimentary retractile sixth segment. The 

 discovery of this somewhat anomalous genus may prove a 

 link in the chain of evidence tending to place the Eucinetini 

 among the Silphidas. There are, however, many more 

 reasons for retaining the group in the Dascyllidaj for the 

 present; the antennas although clavate and not at all serrate, 

 are strongly flattened, and the structure of the labial palpi 

 occurs frequently in the latter family. In the present genus 

 1 cannot perceive a minute basal joint in the latter, and the 

 second is evidently very minute and aflixed obliquely to the 

 first, the third being clearly visible, not as an appendage of 

 the second, but as a long spiniform terminal joint. 



E. saltator u- sp. — Form narrowly oval, more than twice as long as wide, 

 pointed behind, very convex; rather dark reddish-testaceous throughout; 

 shining; pubescence fine, short and recumbent, rather sparse, fulvous in 

 color. Head much wider than long, coarsely and rather closely punctate; 

 punctures shallow and somewhat asperate; antennae much shorter than the 

 head and prothor.ix together; under surface deeply impressed with a trans- 

 verse arcuate groove. Prothorax twice as wide as the head; apex broadly 

 arcuate, one-half as long as the base; the latter strongly arcuate in the mid- 



