NEMATUS PAVIDUS. 171 



by the shorter, thicker antennas, and by the abdomen 

 having only a small quadrate mark on basal segment, 

 not a broad band down its whole extent. The group 

 of BetulcB again may be separated from the present 

 by the truncated clypeus, and blackish stigma. 



Synopsis of Species. 



1 (2) Mesopleurae (except immediately beneath the wings), meso- 



notum and scutellum, entirely black. Pavidus. 



2 (1) Mesopleurse broadly yellow. 



3 (4) Clypeus black, scutellum immaculate, mesonotum with a 



V-shaped yellow mark. \/-flavum (see Group XV). 



4 (3) Clypeus yellow, scutellum with two yellow spots, mesonotum 



entirely black. Aurantiacus. 



82. NEMATUS PAVIDUS. 



PL II. fig. 3, ? ; PL X, fig. 1, Lar. ; 1 a, Eggs ; 

 PL XXV, fig. v 2, Saw. 



Nematus pavidus, Lep., F. Fr., pi. 10, f. 6 ; Mon., 65, 191 ; Br. 

 and Zad., Schr. Ges. Konig., xvi, 

 pi. 5, f. 15 (lar.), 1. c., xxiv, 321; 

 Cam., Fauna, 38; Tr., Ent. Soc., 

 1880, 79. 



ochraceus, Htg., Blattw., 218, 51. 



semiorbitalis, Foer., Yerh. Yer. pr. Bhein., xi, 288 



pi. Ill, f. 8 (wing) ; Kalt., Pfl., 579. 



myosotidis, Brischke, Beschr., 14, pi. iii, f. 4 (lar.). 



palliatus, var. c. Thorns., Opus., 635. 



Wttewaalli, Yoll., Tijd. Ent., v, 65, pi. 4 (imago, larva, 



&c.). 



aurantiacus, Thorns., Hym. Sc., i, 156, 89. For larva : 



Reaumur, Mem., v, pi. 11, f . 36; De 

 Geer, Mem., 11, 257, 13, pi. 37, 

 f. 1-11. 



Cryptocampus quadrum, Costa, Fauna di Nap. Tenth., 25, 

 pi. Ixv, f. 2 (teste Zaddach, 1. c., 

 supra). 



Antennae nearly as long as the head and abdomen, filiform, black ; 

 the third and fourth joints about equal in length, the others becoming 

 gradually shorter. Head black, shining, finely punctured, covered with 

 pale pile ; pentagonal area faintly visible, front projecting, clypeus 

 incised ; epistoma small ; black, the face from below the antennae, and 

 a broad band surrounding the eyes (except behind) it being especially 

 broad at the apex luteous ; mandibles brownish, palpi testaceous. 

 Thorax a little broader than the head, black, shining, finely punctured, 



