. Coleoptera : general introduction and Cicindelidae and Paussidae. orax ; scutell., srmtellum ; met., metanotuin ; postscutell., postseutellum ormetanotalscutellum; stigm^, first abdominal stigma; stigmH, last abdominalstigma ; Dj-D^, dorsal segments of the hind body. (After Ganglbauer ;lettering somewhat altered.) at the end of a long gullet; the mandibles are sometimes hard andstout and furnished with at least one strong tooth • sometimesthey are finer, sharp, and sickle-shaped ; the maxillae have twolobes, and the maxillary palpi are 4-jointed, with the last jointoften very small and subul
. Coleoptera : general introduction and Cicindelidae and Paussidae. orax ; scutell., srmtellum ; met., metanotuin ; postscutell., postseutellum ormetanotalscutellum; stigm^, first abdominal stigma; stigmH, last abdominalstigma ; Dj-D^, dorsal segments of the hind body. (After Ganglbauer ;lettering somewhat altered.) at the end of a long gullet; the mandibles are sometimes hard andstout and furnished with at least one strong tooth • sometimesthey are finer, sharp, and sickle-shaped ; the maxillae have twolobes, and the maxillary palpi are 4-jointed, with the last jointoften very small and subulate ; in Aleochara there is a very minutefifth joint in both the maxillary and labial palpi; these latter are STAPHYLINIDiE. 75 usually 3-jointed, occasionally 2-jointed, as a rule of normal form,but in Myllcena and a few other genera they are more or lesssetiform. The hind-body or abdomen is sometimes parallel-sided, sometimesstrongly narrowed, and more or less conical; in very few instancesis it wider behind than the elytra; it is usually more or less setose,. Fig. 33.—Staphylinus tenebricosus. Underside: , maxillary palpus ;, labial palpus; m, mentum; , gular sutures; cL, clavicle; st^ pro-sternum ; st2, mesosternum ; st3, metasternum; eps0, epm2, episterna andepimera of mesosternum ; eps3, epms, episterna and epimera of meta-sternum ; stigm., free stigma of the presternum ; C1; C2, C3, coxas; V1-V7,ventral segments of the hind body; By, anal styles, the side pieces of thecompletely divided segment. (After Granglbauer; lettering somewhat,altered.) and very often bears at its apex two style-like processes. In manygenera the modifications of the terminal segments, especially in themale, are of very great importance in determining species (e. g. inHomalota, Tachinus, etc.). In some species (e. g. Enceplialus) thehind-body can be curved up over the back so as to cover the frontportion ; in others (e. g. JCantholinus) the abdomen is curved in 76 INTRODUCTION. un
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbeetles, bookyear1912
