GONATAS. 219 
finely and indistinctly punctate; the posterior lobe distinctly and more coarsely punctate, with two large, 
central, piceous spots, and a smaller one at each basal margin, and with a central, pale, longitudinal, 
ochraceous line. Scutellum piceous, finely and indistinctly punctate. Clavus dull testaceous, with the 
central portion ochraceous. Corium dull testaceous; the basal third and a large central spot a little 
before apex ochraceous; there is also an obscure and somewhat pale spot on each side of disk near claval 
margin. Membrane pale fuscous, the veins darker, the basal margin piceous, and the apex and basal 
angles near apices of corium,ochraceous. Body beneath piceous ; lateral margins of sternum and posterior 
margin of metasternum ochraceous ; anterior femora piceous, with their apices ochraceous ; intermediate 
and posterior femora ochraceous, broadly annulated with fuscous near their apices; tibie and tarsi 
ochraceous. 
Long. 4 millim. 
Hab. GuatemMata, Quiche Mountains (Champion). 
This species is closely allied to LE. ferus, Say, of which the Rhyp. borealis, Dall., is 
stated by Uhler and Stal to be a synonym. From this it differs by the different colour 
of the legs, marking of the membrane, &c. 
GONATAS, n. gen. 
Antenne with the three basal joints hirsute, first joint passing apex of head, second longest, attenuated at its 
base. Head rather longer than broad and, including outer margin of eyes, a little narrower than interior 
margin of pronotum. Pronotum broader than long, the anterior margin narrower than basal, the lateral 
margins moderately ampliated; the anterior angles rounded, and with an obscure central transverse 
impression ; the posterior margin slightly concave at base of scutellum. Scutellum triangular, a very 
little longer than broad. Anterior femora moderately thickened, somewhat setose beneath, and with a 
few very small spines beneath near apex ; intermediate and posterior tibie setose ; first joint of posterior 
tarsi almost twice as long as second and third joints together. Rostrum reaching intermediate coxe ; first 
joint about equal in length to that of the head ; second longest, reaching anterior coxe. Abdomen beneath 
pilose. 
1. Gonatas typicus, n. sp. (Tab. XX. fig. 6.) 
Head black. Antenne pale piceous; apices of first and second joints, third joint excepting base, and fourth 
joint dark piceous ; second joint longest, third and fourth subequal in length. Pronotum piceous; lateral 
margins, excepting base, ochraceous ; anterior half with the frontal margin coarsely punctate, the disk 
shining and impunctate, posterior half and inner lateral margins thickly and coarsely punctate. Scutellum 
black, coarsely punctate, with a central, longitudinal carinate line, and with two raised impunctate 
submarginal nodosities on each side, and a similar one near apex. Corium ochraceous, much suffused with 
piceous, sparingly punctate; basal costal margin ochraceous and impunctate. Membrane pale fuscous. 
Body beneath piceous ; femora piceous, with their apices ochraceous; tibise ochraceous, with their apices 
pitchy; tarsi ochraceous, their apical joints more or less pitchy. Intermediate and posterior tibie 
strongly setose. 
“a2 . . ole vat yt ; -4 ; 
Long. 43 millim. F why? Caldare Apres (a fevern plates om Gouvalcwala 2c Fr) 
YOR “Hab. Guatemats, Caldera (Champion); Panama, Volcan de Chiriqui 2000~—3000 feet, 
- Bugaba (Champion). 
2. Gonatas divergens, n. sp. (Tab. XX. fig. 10.) 
Head shining black ; pronotum black, opaque, with the lateral angles ochraceous (in some specimens the basal 
margin and also the posterior portion of the lateral margins are obscure ochraceous). Antenne pale 
castaneous, with the apical joint darker, piceous or sometimes concolorous ; second joint very slightly 
longer than third and fourth, which are subequal in length. Scutellum black, opaque. Clavus ochraceous, 
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