No. 2323. LARVAE OF THE CLERIDAE—BOVING AND CHAMPLAIN. 617 



CYMATODERA INORNATA Say. 



Hopk. U. S. No. 97911'; mature. Species reared ; larval skin and imago preserved. 



(Fig. 96.) 

 Very close to C. hicolor in size and all structural details; differs 

 from this species only in the following characters : Posterior part of 

 frons and dorsal side of epicranium transversally rugulose, basal 

 plate of cerci transversally rugulose, no unpaired median protuber- 

 ance present dorsally on stalk-like proximal half of cerci, color of 

 membranous parts is dorsally purple with whitisli pattern. 



DIVISION IV (pp. 617-613). 



Ocellus one or none. 

 11. Genus ORTHOPLEURA Spinola. 

 Body tumid claviform with comparatively small thoracic segments 

 and fourth to sixth abdominal segments large ; ninth abdominal seg- 

 ment small and short, anteriorly comparatively wide, subconical ; ab- 

 domen dorsally without ampullae, ventrally rounded. Chitinous parts 

 poorly developed. Membranous parts whitish. Setae thin, short, 

 and scarce. Headcapsule small, subtriangular with strongly curved 

 sides. Frons without sculpture. Epicranium without sculpture; 

 anterior margin of hypostoma slightly emarginate. Ocellus absent, 

 possibly represented by a slightly protuberant, rather large, round, 

 colorless spot just behind the ventrolateral part of antennal ring. 

 Length of basal, second, and apical antennal joints proportioned as 

 1^ : 1 : 1 ; supplementary joint small. Mandible about one-third the 

 length of frontal suture, a trifle longer than wide, pointed; reti- 

 naculum well developed, situated slightly above middle of inner 

 margin ; tooth present between retinaculum and apex. Maxilla with 

 low, band-like chitinization at the base of cardo and stipes; length of 

 basal, second and apical joints of maxillary palpus proportioned as 

 1:1:1^; palpiger well developed with small chitinization. Gula not 

 chitinized, laterally poorly defined, slightly shorter than frons, not 

 much longer than maxilla. Submentum and mentum not chitinized. 

 Stipes labii thinly chitinized; length of basal and apical joints of 

 labial palpus proportioned about as 1:1. Prothorax subconical, 

 about as wide as long, somewhat longer and narrower than the fol- 

 lowing thoracic segments; no prothoracic shield; no sternal plate. 

 Meso- and nieta-thorax without dorsal chitinization; hypopleural 

 support for legs chitinous. Legs short, poorly chitinized. Abdomen 

 with normally developed intersegmental membranes ; abdominal seg- 

 ments smooth, without ampullae, swollen to the extent that the dif- 

 ferent areas can not be defined. No basal plates of cerci. Cerci well 

 separated, very small, hook-shaped. 



