Mar. iSog] FaLL : On AMERICAN SpECIES OF ACM/EODERA. 13 



yellow or reddish yellow spots arranged in discal and lateral series of four or five 

 each, the corresponding spots at and behind the middle sometimes confluent. Abdo- 

 men rather finely and sparsely punctate, clothed with long hair which is unusually 

 dense and conspicuous toward the sides of the body. Front margin of the prosternum 

 with a stout blunt tooth on either side. Last ventral with distinct apical plate which 

 is rather thick and strongly narrowed or subangulate posteriorly. Length, 8-1 1 mm., 

 •32--44 inch. 



Habitat: Various localities in southern California between the 

 mountains and the coast. 



The spots are usually very small and sometimes nearly wanting, 

 but I do not remember to have seen a specimen in which they are en- 

 tirely absent. The lower surface is more conspicuously hairy than in 

 any other species except lanata 3i\\d pi/biventris, from either of which 

 it is at once distinguished by the hairs of the ventral surface being 

 erect and the form more depressed. Small specimens are greatly like 

 dolorosa in general appearance, but the latter has a very different pro- 

 sternum ; on the other hand, large nearly immaculate specimens re- 

 semble inorbosa, but this also is a species of the next group and is 

 normally hairy beneath. Fcnyesi is by no means rare and is doubtless 

 represented in many collections. In local collections it has for some 

 reason or other passed as sparsa, a non -related species which does not 

 occur in California at all, and it is not unlikely that it has been sent 

 east under this name. For many of the specimens before me I am in- 

 debted to the diligent collecting of my friend. Dr. Fenyes, of Pasa- 

 dena, to whom I take great pleasure in dedicating the species. 



A. recticollis, sp. nov. 



Robust, parallel, feebly depressed, black without oeneous lustre, clothed above 

 and below with sparse short grayish hairs, thorax without markings, elytra maculate 

 with yellow and red. Head not very densely punctate, feebly impressed, thorax dis- 

 tinctly less than twice as wide as long, sides parallel in basal half or three fourths, 

 thence rounded to the apex ; lateral margin visible from above only in front, surface 

 moderately closely not coarsely punctate on the disk, more densely and coarsely at 

 sides ; impressions rather feeble. Elytra of same width as thorax, sides parallel to 

 behind the middle, umbones not prominent, strire not impressed on the disk, punctures 

 moderate, intervals more strongly punctate than usual. The maculation may be de- 

 scribed as two rows of spots, one discal and the other lateral, the median and post- 

 median pairs of spots confluent. The discal series begins with a spot at the extreme 

 base, the corresponding marginal spot being very small ; the apical spots are more 

 or less reddish. Prosternum with a prominent tooth each side of the middle ; 

 abdomen finely punctulate at middle, basal segment densely and more coarsely at 

 sides as usual ; last ventral-with short thick angulate apical carina. Length, lo mm., 

 .40 inch. 



