Comprehensive DescriptionRead full entry
DescriptionOchodaeidae: Chaetocanthinae: Synochodaeini. Form convex, elongate. Sexual dimorphism lacking. Color testaceous to light reddish brown. Length: 5.7–5.9 mm. Width: 2.5–2.7 mm. Head: Surface densely tuberculate/punctate, setose. Mentum strongly tumid, not longitudinally impressed. Labrum densely punctate/setose. Distal 2 labial palpomeres spherical or irregularly shaped (not cylindrical). Clypeus long (length = ½ width), straight anteriorly, not reflexed. Frontoclypeal suture lacking distinct transverse sulcus. Mandibles relatively small, externally rounded, visible beyond labrum in dorsal view. Antenna with 10 antennomeres; 3-antennomere club oval, pubescent; first club antennomere neither strongly hemispherical nor enfolding distal antennomeres. Eyes large, somewhat bulging. Pronotum: Surface densely punctate, punctures moderate in size, with distinct anterior tubercle, setigerous; setae moderately long, testaceous. Margins beaded. Scutellum: Form weakly hastate with apex acute. Elytra: Striae (except sutural) not impressed, obsolete. Surface irregularly punctate; punctures moderate, each with small tubercle anteriorly, setigerous; setae dense, moderately long, testaceous. Legs: Protibia tridentate. Legs simple, unarmed. Mesotibial spur pectinate. Metatibia with large external carina in distal 1/3 long (extending > ½ width of tibia) but interrupted at middle. Metatibial spurs simple (possibly worn). Metatrochanter not acutely produced. Abdomen: Stridulatory peg absent. Propygidium short (length <1/5 width), without elytral locking mechanism.