Limnocoris lutzi La Rivers occurs from the southern side of the mountain spine in Chiapas, Mexico, north through eastern Mexico to central Texas. Its voltinism was studied in the South Llano River in central Texas in 1988 and 1989. This species overwinters as adults among rocks and sand in riffles and is univoltine in central Texas. Adults are present year-round and nymphs occur from early May through mid-November. Eggs have two distinct micropyles and many aeropyles, but are devoid of other chorionic protruberances. The chorionic outer layer is perforated by pore canals that extend perpendicularly to the imperforate chorionic inner layer. This species has five instars, the first of which differs from the remainder in basic color pattern. Eggs and all instars were examined with light and scanning electron microscopy and are illustrated and described.
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Vol. 94 • No. 1