No. 2323. LARVAE OF THE CLERIDAE—BO VINO AND CHAMPLAIN. 611 



what swollen; epipleural and hypopletiral areas protuberant; ster- 

 nellar areas swollen. Ninth abdominal segment semiglobular. Basal 

 plate of cerci absent. Cerci absent. 



NEICHNEA LATICORNIS Say. 



Hopk. U. S. No. 10762?) ; mature. Species reared ; cast skin and imago preserved. 

 (Figs. 7, 22, 35, 55, 72, 91, 106, 129.) 



Total length of body, about 7 mm. ; extreme width, 1^ mm. ; extreme 

 thickness, 1 mm.; anterior width of prothorax, 1 mm. Mandibles, 

 epistoma, median endocarina of f rons dark brown ; a small anterior 

 part of frons, anterior margin of hypostoma, chitinous parts of ven- 

 tral trophi and antenna pale brown; membranous parts whitish. 

 Setae whitish. Frons has a short, longitudinal oval deepening mid- 

 way between carina and frontal suture, and in front of this deepening 

 diverging from carina and close to epistoma a short, straight, rather 

 deep line, which together with the opposite corresponding line limits 

 a small, triangular, flat protuberance. Mandible about half as long 

 as frons ; apex nearly reaches beyond inner corner of the mandibular 

 base ; two mandibular setae. 



SECTION C (pp. 611-612). 



Body digitiform vrith extreme vv^idth on fourth to seventh abdomi- 

 nal segments, tapering from here gradually anteriorly and poste- 

 riorly ; ninth abdominal segment crescentif orm ; dorsal ampullae not 

 developed. 



Chitinous parts moderately developed and colored. Membranous 

 parts conspicuously colored. Setae soft, densely distributed over the 

 whole body. Headcapsule comparatively short, subrectangular, 

 about twice as wide as long; hypostoma with oblique, curved 

 anterior emargination between the ventral articulation of mandible 

 and the posterior corner of cardo. Mandible somewhat longer than 

 wide ; retinaculum considerably closer to apex than to basis of man- 

 dible. Maxilla with well-developed chitinization of cardo and 

 stipes. Mentum and Submentum without chitinizations. Gula not 

 longer than maxilla from posterior end of cardo to end of palpus. 

 Prothorax subrectangular, about as long as frontal suture, twice as 

 wide as long; prothoracic shield thinly chitinized ; prothoracic sternal 

 Dlate poorly chitinized, pyriform. Meso and Metathorax with dorsal 

 plates slightly or not developed. Basal plate of cerci delicately chiti- 

 nized without anterior demarcation, or not developed. Cerci short, 

 separate. 



8. Genus TRICHODES Herbst. 



Frons short and wide, rather smooth; endofrontal carina pos- 

 teriorly widened like an arrowhead. Epicranium dorsally and ven- 

 t rally smooth. Ocelli as in Thanashtius and related forms (p. 600), 



