92 LIs£ OF HOMOPTEROUS INSECTS. 
Issus LINEATUS. 
Issus lineatus, Walk. Journ. Linn. Soe. i. 154, 64. 
a, Sarawak, Borneo. From Mr. Wallace’s collection. 
Issus ANGUSTUS. 
Testaceus, sat gracilis; vertex transversus, nigro bivittatus, lateri- 
bus elevatis ; frons elongata, subcarinata, nigro bifasciata, 
lateribus subelevatis ; facies nigra; prothorax nigro bimacu- 
latus ; mesothorax nigro quadrimaculatus ; pectus nigro 
bimaculatum; pedes pallide virides; ale antice virides, 
anguste, fusco varie, litura postica pallide viridi, striga 
basali subcostali nigra ; postice pallide cinerea, venis nigris, 
Testaceous, rather slender. Vertex transverse, with a black 
stripe on each side, and with elevated borders; front longer than 
broad, with a slight middle keel and with slightly elevated borders, 
with a black band where it joins the vertex, and with another near 
- the face, towards which the sides are slightly dilated and curved; 
face black. Prothorax transverse, slightly conical in front, witha 
black spot on each side. Mesothorax with two black spots on each 
side. Pectus with two black spots on each side. Legs pale green. 
Fore wings narrow, green, varied with brown, with a pale green 
mark extending from the middle of the interior border to the disk, 
and with a black streak near the base of the costa; veins and 
veinlets regular. Hind wings pale cinereous, with black veins. 
Length of the body 3 lines ; of the wings 6 lines. 
a. Sarawak, Borneo. From Mr. Wallace’s collection. 
Issus SIMPLEX. 
Pallide cervinus ; vertex elongatus, lateribus elevatis, carinis duabus 
antice connewis ; frons longiuscula, tricarinata ; facies trigona, 
carinis duabus indistinclis ; thoraw parvus; ale antice an- 
guste, venis venulisque paucis in ordine dispositis ; postice 
subcineree, venis nigris perpaucis. 
Pale fawn-colour. Vertex longer than broad, with elongated 
borders, and with two keels which converge and are connected in 
front; front much longer than broad, with three keels, the lateral pair 
