Coleoptera. 39 



95. Antennae received in grooves on the underside of the prothorax; small, black, 



oval, flattened beetles. (Hyporhagus.) M0N6MMID.S 



Antennae free, not received in grooves 96 



96. Prothorax with a sharp lateral margin 97 



Prothorax not margined laterally, narrowed behind, its disk without impres- 

 sions. (Pytho, Boros) PYTHID^ 



97. Epimera of the mesothorax not reaching the coxae, the coxal cavities entirely 



surrounded by the sterna (Males of several genera) (see couplet 36) 



CRYPTOPHAGID^, part 

 Epimera of mesothorax attaining the coxae 98 



98. Metasternum long; epimera of metathorax visible; prothorax widened toward 



the base; its disk with basal impressions (Penthe, Eustrophus, Melandrya, 



Synchroa) MELANDRYID.(E 



Metasternum quadrate; epimera of metathorax covered. (Males of several 

 genera) (see couplet 33) CUCUJIDjE, part 



99. Head prolonged behind and gradually narrowed; prothorax not margined, as 



wide as the elytra at base. (Cephalobn) CEPHALOONIDiE 



Head suddenly narrowed behind 100 



100. Prothorax with a sharp lateral margin 101 



Prothorax without a sharp lateral margin, rounded on the sides 103 



101. Antennae thread-like 102 



Antennae pectinate (male) or subserrate (female); tarsal claws serrate or 



toothed. (Plecotoma) Tribe Evaniocerini of the RHIPIPHORIDiE 



102. Hind coxae furnished with flattened plates; head placed vertically against the 



thorax; body conically narrowed behind, the abdomen usually prolonged 

 and pointed at tip; small beetles. (Mordellistena, Mordella, Tomoxia) 



(PI. 7, fig. 166) MORDELLID^ 



Hind coxae without flattened plates, transverse. (Canifa.) . SCRAPTIED.^ 



103. Base of prothorax narrower than the elytra 104 



Base of prothorax as wide as the elytra; body broad, much narrowed behind; 



elytra usually shortened and narrowed behind. (Rhipiphorus, Myodites.) 



RHIPIPHORID^ 



104. Hind coxae not prominent; tarsal claws simple 105 



Hind coxae large and prominent 107 



105. Eyes more or less emarginate 106 



Eyes elliptical, entire, rather coarsely granulated. (Macratria, Notoxus, 



Anthicus) ANTHICIDiE 



106. Head constricted far behind the finely granulated eyes. (Corphyra.) 



PEDILID^ 

 Head constricted just behind the coarsely granulated eyes. (Hylophilus.) 



HYLOPHILID^ 



107. Tarsal claws simple; head horizontal; antennae serrate, often pectinate in the 



male; body flattened; moderate sized beetles. (Pyrochroa, Dendroides) 

 (PI. 7, fig. 130) PYROCHROID^ 



