Pupal cases of Nearctic robber flies (Diptera: Asilidae) Dennis, D. Steve Barnes, Jeffrey K. Knutson, Lloyd Zootaxa 2008 2008-09-03 1868 1 1 98 5KMS 270862 Macquart 1838 [752,895,1266,1292] Insecta Asilidae Mallophora Animalia Diptera 52 53 Arthropoda genus    1 Maxillary sheath with small median process on each side of labral sheaths; prothoracic spiracle on rugose upraised area; abdominal segment 1 with all or some dorsal spurs expanded, sagittate, broad basally; segments 3–7 usually with median space in transverse row of ventral bristle­like spines (except male  Mallophora bomboides)........................................................................................................................................2  ­ Maxillary sheath without median process on each side of labral sheaths; prothoracic spiracle almost flush with prothoracic area; dorsal spurs on abdominal segment 1 not basally expanded or sagittate; segments 3–7 without median space in ventral row of bristle­like spines..................................................................3   2 Anterior coxal sheath with suborbital spine at base; wing sheath with 2 median tubercles; abdominal segments 3–7 with ventral transverse row of 7–14 sometimes bifurcate bristle­like spines; abdominal segment 8 with 10 dorsal spurs ..................................................................  Mallophora leschenaultiMacquart  ­ Anterior coxal sheath without suborbital spine at base; wing sheath with 1 median tubercle; abdominal segments 3–7 with ventral transverse row of 20–36 unforked bristle­like spines; abdominal segment 8 with 2–3 dorsal spurs .......................................................................  Mallophora bomboides(Wiedemann)   3 Posterior mesothoracic callosity with 1 median spine; abdominal segment 1 with 7–8 spurs in transverse row and 2 shorter median spines on anterior margin; segments 2–4 with dorsal transverse row of 16–20 alternating long, narrow spurs and short, wide, unforked bristle­like spines; segments 3–7 with ventral transverse row of 16–29 bristle­like spines; segment 8 with 4 dorsal spurs and lateral spines on each side... .................................................................................................................  Mallophora fautrixOsten Sacken  ­ Posterior mesothoracic callosity with 2 subequal spines; abdominal segment 1 with dorsal transverse row of 16 spurs, outermost spine on each side short, 2 median spines three­fourths as long as adjacent spines; segments 2–4 with dorsal transverse row of 13–14 bifurcate or unforked spurs and spines of equal size; segments 3–7 with ventral transverse row of 10–14 bristle­like spines; segment 8 with 2 dorsal spurs and 3 lateral spines on each side ....................................................................  Mallophora orcina(Wiedemann)