XVI LIST OF ILLUSTRATIONS. 



Page. 



33. Coccomytilus convexus (Maskell). A, fully distended and cliitinized adult 



female, X57.5; B, adult female, abdomen, X115; C, intermediate stage 

 female, pygidium, X335; D, adult female before distension, X57.5; 



E, adult female, spiracle, anterior, X220; F, adult female, pygidium, 

 X220; G, adult female, antenna, X640 101 



34. Trichomytilus formosus (Maskell). A, adult female, pygidium, X220; 



B, larva, leg, X640; C, adult female, apex of abdomen, X115; D, adult 

 female, outline of body, X57.5; E, adult female, anterior spiracle, X500; 



F, adult female, margin of pygidium, X335; G, intermediate stage 

 female, margin of pygidium, X335; H, larva, antenna, X640; I, larva, 

 outline of body, X220; J, larva, cast skin, XHo; K, adult female, antenna, 

 X1500; L, larva, apex of abdomen, X640 104 



35. Allantomytilus maideni (Maskell). A, intermediate stage, cast skin, 



outline, X180; B, adult female, pygidium, X220; C, larva, apex of 

 abdomen, X640; D, intermediate stage female, antenna, X640; E, 

 intermediate stage female, pygidium, X335; F, adult female, antenna, 

 X640; G, adult female, outline of body, X57.5; H, larva, leg, X640; 

 I, larva, antenna, X640; J, larva, cast skin, X165; K, adult female, 

 spiracle, X640 107 



36. Anoplaspis metrosideri (Maskell). A, adult female, antenna, X640; B, 



adult female, spiracle, X640; C, intermediate stage female, pygidial 

 margin, X335; D, adult female, pygidial margin, X335; E, adult female, 

 pygidium, X165; F, larva, leg, X640; G, larva, antenna, X640; H, larva, 

 apex of abdomen, X335; I, adult female, outline of body, X57.5 110 



37. Anoplaspis maskclli, new species. A, adult female, pygidium, X105; 



B, adult female, outline of body, X30; C, adult female, spiracle, X640; 

 D. intermediate stage female, pygidial margin, X335; E, adult female, 

 antenna, X640; F, adult female, pygidial margin, X335; G, larva, apex 

 of abdomen, X640; H, larva antenna, X640 112 



New Species of Ichneumon Flies, with Taxonomic Notes. 



By R. A. Cushman. 



1. Wings of Hymenopharsalia texana 14 



A New Description of Saniwa Ensidens Leidy, an Extinct Varanid Lizard 



from Wyoming. 



By Charles W. Gilmore. 



1. Skull of Varanus niloticus. Col, Colunella; Exo, exocipital; Fr, frontal; 



Ju, jugal; La, lachrymal; Mx, maxillary; N. external nares; Na, nasal; 

 Pa, parietal; PI, palatine; Pmx, premaxillary; Prf, prefrontal; Pro, 

 prootic; Pl, pterygoid; Ptf, postfrontal+postorbital; Qii, quadrate; 

 Qttj, quadratojugal; S, supratemporal fossa; So, supraoccipital; Sg, squa- 

 mosal; T, ectopterygoid ; Y, supraorbital. (After Cuvier) 4 



2. Ventral view of skull bones of Saniwa ensidens I^eidy. Cat. No. 2185, 



U.S.N.M., type. All natural size. A, Right Pterygoid. Ect, process 

 articulating with the ectopterygoid; p, process that unites with the pala- 

 tine. B, Basisphenoid; /j?/p, hypophyses; ps, presphenoid, which is miss- 

 ing. C, Basi occipital; oc, occipital condyle restored. D, Right ecto- 

 pterygoid, dorsal view; vix, anterior end that meets the maxillary; pt, 

 posterior bifurcated end that meets the outer branch of the pterygoid. . . ' 5 



