222 Natural History Bulletin. 



Articerus, Dahhnan (ai)ri, short, Kepa-, horn). 



Antennal fove?e not reaching the eye, head wider, 

 last antennal joint with lateral outlines arcuate. 

 Length, 1.5 mm. - - - calif ornicus. 



Antennal foveie reaching the eye, head narrower, 

 last antennal joint with lateral outlines straight. 

 Length, 1.66 mm. . . . . fuc/isii. 



A. FUCHSii, Br end. {Fiistigxr, I^cc.) Dark yellow, trans- 

 lucent, pubescence setiform, in regular rows. Length, 1.66 

 mm. Plate VI., Fig. 6. 



Head much variolate, flattened above, sides subangular near 

 the eyes, which are situated about one-third of the length 

 from the base. Frontal margin and base nearly equal in 

 width to each other and to three-fourths of the length of the 

 head; frontal margin slightly impressed at middle, frontal sep- 

 tum narrow, antennal cavities very large. On the occiput are 

 seen two small, shining points (also present in the European 

 species), which have the appearance of ocelH. The eyes 

 have eight facets. AntenncB with the basal joint small, quad- 

 rate, root-pulp partly exserted, second joint straight, tuba- 

 shaped, tip truncate and three times wider than the base. 

 Prothorax variolate, equal to the head in length, as long as 

 wide, subglobular, truncate at base and apex, with a deep, 

 median, sub-basal, variolate scar. Elytra at the base as wide 

 as the prothorax; no humeral tubercles, suture not longer 

 than the head, width across the tips equal to one and three- 

 fourths times the length of the suture. Posterior limit of each 

 elytron angularly lobed near the lateral limit, and having a 

 tuft of hair; disk slightly depressed along the suture, with 

 sutural lines and about six rows of recumbent setfe. Poster- 

 iorly the elytra are declivous to the deep, transverse abdom- 

 inal fovea. Abdomen wider than the elytra, the basal segment 

 longer than wide, deeply transversely foveate, evenly convex 

 posteriorly, lateral margin convolute near the base, where it is 

 widest and retuse, gradually narrowing behind. First ventral 

 transversely impressed on either side. Legs prismatic, the 



