144 NEMATUS CftOCEUS. 



Synopsis of Species. 



1 (2) Stigma pale yellow ; antennae and body testaceous. Pallescens. 



2 (1) Stigma reddish-yellow ; body reddish or fulvous. 



3 (4) Antennae short, not much longer than abdomen ; wings ful- 



vous ; body reddish-yellow. Glottianus. 



4 (3) Antennae longish, longer than abdomen ; wings hyaline. 



5 (6) Body narrow, abdomen becoming gradually narrowed towards 



the apex, distinctly longer than head and thorax together ; 

 the base black. Croceus. 



6 (7) Body broad, abdomen broad, rounded at apex, scarcely longer 



than head and thorax. Cadderensis. 



7 (6) Body longish, abdomen distinctly longer than thorax and head, 



tapering towards the apex ; clypeus deeply incised. 



Dorsatus. 



67. NEMATUS OROCEUS. 

 PL XXIII, fig. 5, Saw. 



Tenthredo crocea, Fall., Acta, 1808, 122, 65. 



(caprece) solids, De Geer, Mem., v, 264, 17, pi. 38, f. 1. 

 Nematus dorsalis, Lep., Mon., 70, 213 ? 



testaceus, Ste., 111., vii, 29, non Htg. (cf. Cam., E. M. M., 

 xiii, 174). 



fulvus, Htg., 194, 19 ; Br. and Zad., Schr. Ges. Konig., 



xvi, pi. 1, f. 12 (lar.) ; Cam., Fauna, 

 139, 42; Kalt., Pfl. 578; Costa, 

 Fauna di Nap., Tenth., 18, pi. Ixiv, 

 f. 2. 



trimaculatus, Toll., Tijd. Ent., v, 69, 71, pi. 4. 



croceus, Thorns., Hymen. Sc., i, 149 ; Andre, Species, 



i, 202; Cat., 23,* 172; Br. and Zad., 

 1. c., xxiv, 293. 



flavus, Gimmerthal, S. E. Z., 1844, p. 36. 



purus, Foer., Verh. pr. Rhein., xi, 278, Tab. iii, f. 1, 



a, 6. 



Antennas about the length of thorax and abdomen together, rather 

 thin, luteous, with a black line above ; the basal two joints almost 

 entirely black. Head luteous, face below the antennae paler, the tips of 

 the mandibles piceous ; ocelli black ; frontal sutures well marked, pen- 

 tagonal area large, distinct, the f ovea between the antennae deep, some- 

 what triangular; the forehead projecting, clypeus broadly notched, 

 labrum hairy, eyes small and oval. Thorax luteous, the pronotum and 

 tegulae paler ; there is a long thin black line in the centre of the anterior 

 part of the mesonotum, and another smaller black mark on each side ; 

 there is also a black spot at the base of the scutellum, and on the 

 outside of the cenchri ; the cenchri are white, the scutellum is a little 

 raised. Abdomen rather flat, luteous, the base black and on each seg- 

 ment above is a black transverse line ; the cerci are luteous, the sheath 

 black. Legs luteous, the coxae and trochanters pale, the apex of posterior 

 tibiae and a mark on each tarsal joint black ; the culcaria being also 



