NO. 1530. THE BECriCIX.E OF NORTH AMERICA— CAUDELL. 295 



more than beyond, luteo-tet^tat'eou.s, a little infuiscated in the apical half, nearly two- 

 thirds as long as the hind feniora, the denticulations l)lnnt, oblitine, separated by 

 more than their own height. 



Measurements.- — Length of l)ody, 25 mm.; pronotum, 10.5; breadth of same, 6; 

 length of hind femora, 25.5; ovipositor, 16. 



One female. Monte Diablo, California, Augnst, 1872. 



Ti/ix'. — In the Museum of Comparative Zoology. 



In leng-th of posterior femora this species is allied to the members 

 of the follo\ving genus, but in oeneral appearance it is like Aghiothorax 

 ovatus. Its nearest ally is probal)ly A. castaneus. From that species, 

 however, it is readily separated by the long posterior femora and the 

 shorter and bliuiter ovipositor with its fewer and duller serrations. 

 The pronotum has a distinct transverse sulcus cutting otl' about one- 

 tifth of the anterior portion of the disk, not cutting the median carinse 

 however. The fastigium is very narrowh" sulcate, l)eino- cleft as in 

 ovdtus. The cerci are seemingly a little more elongate than those of 

 the fen'iale of castaneus. 



Specimens e.nim'intd. — This species is not represented in the collec- 

 tion of the U. S. National Museum, but I examined the tj^pe at Cam- 

 bridge. The posterior femora of the type specimen measured 5.5 mm. 

 across the basal part. 



Genus NEDUBA Walker. 



Nediiha Walkek, Cat. Derm. Salt. I'.rit. Mus., II, 1869, p. 250.— Kirbv, Syn. Cat. 



Orth., II, 1906, p. 194. 

 Ari/troj)terls Hermann, Verb. Zool.-Bot. Ges. Wien, XXIV, 1874, p. 204 (jjart). 

 Trop/^a.fp-sBRUNNER, Ann. Mus. Civ. Stor. Nat. Genova, XXXIII (2dser., XIII), 



1893, p. 187 (invalid, no species included). — Scudder, Can. Ent., XXVI, 



1894, pp. 178, 180.— WooDWORTH, Bull. No. 142, Cal. Exp. Station, 1902, 

 p. 14.— KiRHV, 8yn. Cat. Orth., II, 1906, p. 194. 



Descrlptlim. — E3"es moderate, not prominent; vertex prominent, 

 narrow, one-third or less as broad as the interocular space. Proster- 

 num generally armed with tw^o long sharp spines, but sometimes the 

 spines are short and ))lunt and some specimens may eventualh' l)e found 

 to have the prosternum wholly luiarmed. Pronotum moderately large, 

 dorsally very little tectiform, the median carina percurrent, more or 

 less distinct: lateral carina^ sharp, percurrent, convergent in the ante- 

 rior third or fourth. Behind the ])oint of convergence they are nearly 

 straightand strongly divergent, the disk posteriorly about twice as broad 

 as anteriorly and strongly produced, the hind border semicircularly 

 rounded, the anterior border truncate; vertical lobes well developed, 

 narrow below, ver}^ moderately inclined, the posterior border mod- 

 erately sinuate. Organs of flight aborted in the female; in the male 

 developed, but not projecting beyond the pronotal disk. Legs long 

 and stout; posterior femora more than twice as long as the pronotum 

 in ])oth sexes and strongly swollen in the basal half; anterior tibia^ 



