Sentence:  Male genitalia strongly asymmetrical, partially concealed by sternum 9, comprised by basisclerite, paired <WSD>epiphalli</WSD> (left with titillator), and hypophallus; hook process (=L3 sclerite after MCKITTRICK 1964) missing (KLASS 1997). 
Meaning of the word marked with <WSD> tags:  In some (dictyopterans), a pair of (valves) adjacent to the (phallus).