468 CALIFORNIA ACADEMY OF SCIENCES. 



externally. Besides the tuft of long setae from the median 

 elevation of the third segment, there are many long con- 

 spicuous setse on the second, and at the sides and base of 

 the third. 



N. maritima n - sp. — Form somewhat slender, dark rufous throughout; 

 elytral apices slightly darker; legs and antennae very slightly paler; pubes- 

 cence long, rather coarse, not dense. Head slightly narrower than the 

 prothorax, nearly as wide as long; eyes moderate, at nearly their own length 

 from the base; genae feebly arcuate, not at all prominent, as long as the eye; 

 front feebly convex, feebly, finely and sparsely punctate toward the eyes, 

 impunctate in the middle; antennas slender, about as long as the head and 

 prothorax together, nearly as in cincinnata, ninth joint symmetrical, but 

 slightly wider than long, tenth strongly transverse, truncate at base and 

 apex, nearly cylindrical, eleventh elongate, but slightly wider than the tenth. 

 Prothorax one-fourth wider than long, widest before the middle ; sides 

 strongly rounded, strongly sinuate near the basal angles; base broadly arcu- 

 ate, nearly four-fifths as wide as the disk, one-half wider than the apex; sur- 

 face very minutely, feebly and sparsely punctate; basal fovea very small, at 

 one-fifth the length from the base; lateral moderately deep, larger, at one- 

 fourth the length from the base. Elytra slightly wider than long, at apex 

 four-fifths wider than the prothorax; sides feebly divergent; disk rather 

 strongly convex; sutural striaa strong, feebly arcuate; discal fine, distinct, 

 extending from near the base for two-thirds the length. Abdomen but slight- 

 ly more than one-half as long as the elytra; border rather narrow; basal 

 carinas short, one-fifth as long as the basal segment, divergent, feeble, sepa- 

 rated by slightly more than one-half the abdominal width. Legs long and 

 slender; posterior tibise bent near the apex. Length 1.0 mm. 



Texas (Galveston 3.) 



The description is taken from the male, the sexual char- 

 acters being very remarkable. The first dorsal segment oc- 

 cupies nearly the entire extent of the abdomen when viewed 

 vertically, and has the apex abruptly deflexed in the middle, 

 the deflexed portion being transversely impressed or exca- 

 vated; its lower margin is reflexed and broken into two 

 lateral crests and a small median and strongly elevated 

 tubercle; the edge of the segment immediately above the de- 

 flexed excavated portion is more densely setose and bears 

 two feeble tubercles. The second segment is short, trans- 

 versely and very deeply excavated in the middle third, the 



