No. 2323. LARVAE OF THE CLERIDAE—BOVING AND CHAMP LAIN. 619 



about one-third the size of the segments ; dorsal ampullae not devel- 

 oped, alar area protuberant, postscutellum large, epipleural lobe pro- 

 tuberant. Dorsal side of ninth segment thinly chitinized, but a defi- 

 nite basal plate is not developed. Cerci well separated, of medium 

 size, hookshaped. 



The present genus is in many respects closely related to Neiohnea 

 and Phyllobaenus^ as well as to Tarsostenus. 



MONOPHYLLA TERMINATA Say. 



Hopk. U. S. No. 12228b ; mature. Species reared ; cast skia and imago preserved. 



(Figs. 13, 27, 40, GO, 75, 97, 109.) 



Total length of body, 16 mm.; extreme width, about 2 mm.; ex- 

 treme thickness, 2 mm. ; anterior width of prothorax, 1^ mm. Man- 

 dible, epistoma, mediocarina of frons, and tarsi Roman sepia; re- 

 mainder of head capsule, trophi, antenna, dorsal chitinization of 

 prothorax, legs, hypopleural chitinization and cerci brown ocher; 

 membranous parts whitish. Setae cream white. Frons with trans- 

 versal impression behind clypeus; a deepening behind angulus fron- 

 talis, and in the center a round conical protuberance with a small pit 

 in the top. Mandible with sharp retinaculum ; tooth between retinac- 

 ulum and apex about as large and sharp as retinaculum; one man- 

 dibular seta. Cerci, without consideration of the recurved part, about 

 half as long as frons. 



MONOPHYLLA CALIFORNICUS Fall (M. PALLIPES Schaeffer). 



Hopk. U. S. No. 12654S; mature. Species reared ; cast skin and imago preserved. 



In every respect identical with M. terminata except in the sculp- 

 ture of frons, where the central round, conical protuberance with the 

 small pit in the top is lacking. 



Subfamily C (pp. 619-(320). 



Frons posteriorily limited by an obtuse angle. Epicranial halves 

 dorsally adjacent to a posterior free prolongation of the endocarina 

 of frons; a distinct unpaired epicranial suture thus not present. 

 Second antennal joint large, three times longer than apical antennal 

 joint. Gula with flat surface. Abdominal preeusternal and eustemal 

 areas not distinctly separated. Spiracles all annuliform. Ocelli, one 

 on each side. 



13. Genus PRIOCERA Kirby. 



Body robust, digitiform with median abdominal segments only 

 slightly larger than the other segments; ninth abdominal segment 

 rather large, oblong, conical; abdomen with ampullae. Chitinous 

 parts moderately developed. Membranous parts whitish. Head 

 capsule well sized, subglobose, with ventral side predominant. Frons 



