LIMNOMETRA.—LIMNOGONUS. 151 
9. Sixth connexival segment acutely produced at the outer apical angle; sixth ventral segment produced in the 
middle at the apex, the segments 3-5 carinate; anterior femora rather slender, feebly curved at the base. 
Length 63-8, breadth 13-23 millim. (¢ 2.) 
Hab. Panama, Bugaba, San Miguel in the Pearl Is. (Champion). 
Found in plenty at Bugaba; two specimens only from San Miguel. Easily distin- 
guishable by the very long and exceedingly slender antenne with unusually elongate 
apical joint, the opaque, posteriorly grooved, ferrugineo-testaceous pronotum, &c. The 
pronotal groove is filled with golden pubescence. 
2. Limnometra quadrilineata, n. sp. (Tab. IX. fig. 17, 2.) 
Winged form. Rather narrow, opaque; the head fulvous or ochraceous, with a V-shaped mark in the middle, 
and a streak on each side between the eyes, black; the pronotum nigro-fuscous, with the posterior margin 
flavous and the lateral margins obscure fulvous, the anterior lobe with a narrow, posteriorly pointed, 
median vitta and the lateral margins flavous or ochraceous, and a broader stripe on each side of the disc 
fulvous (leaving four blackish lines); the elytra nigro-fuscous; the body beneath and the pleura flavous 
or ochraceous, the pleura usually with some blackish lines or spots, the mesopleura sometimes with two 
widely separated longitudinal blackish lines; the abdomen above ferruginous, maculated with fuscous, the 
connexival margins pale; the antenne blackish; the legs fuscous, the anterior femora pale at the base ; 
the pronotum and elytra somewhat thickly clothed with fine golden pubescence, the under surface and 
pleura with pallid or whitish pubescence, the ante-coxal pieces of the meso- and metapleura with a silvery- 
pubescent spot. Antenne slender, reaching to a little beyond the hind coxe, joints 1 and 3 subequal in 
length, 2 much shorter, 4 a little longer than 1. Pronotum obsoletely carinate down the middle of the 
posterior lobe, the posterior margin thickened. Mesopleura moderately dilated before the intermediate 
cox. Anterior legs with the femora rather slender in both sexes, the tibie straight, the tarsal joints 
subequal in length. Posterior legs with the femora about one-fourth longer than the tibia and tarsus 
united, the first joint of the tarsi about three times the length of the second. Mesosternum grooved down 
the middle. 
3. Metasternum longitudinally swollen in the middle; sixth connexival segment obtuse at the outer apical 
angle; sixth ventral segment depressed behind, simply emarginate at the apex. 
©. Sixth connexival segment produced into a long lobe at the apex, reaching as far as the last genital segment. 
Length 7,!,-93, breadth 2-23 millim. (¢ 9.) 
Hab. Mexico (Sallé, in Mus. Holm.); Nicaragua, Chontales (Janson).—Brazit, 
Pernambuco. 
Three females and one male from Chontales, and a mutilated male from Mexico. In 
one of the females from Chontales the elytra are abbreviated, reaching very little 
beyond the apex of the fifth abdominal segment. Two females from Pernambuco in 
the British Museum also appear to belong to this species. Allied to ZL. opaca, but 
differing from it in the nigro-lineate head and anterior lobe of the pronotum, the 
pronotum without groove behind, the shorter apical joint of the antenne, the longer 
basal joint of the hind tarsi, &c. A female from Chontales is figured. 
LIMNOGONUS. 
Limnogonus, Stal, Hemipt. Fabric. i. p. 182 (1868). 
Lamprotrechus, Reuter, Ofv. Finska Vet.-Soc. Férh. xxv. p. 40 (1882). 
The two species of Zimnogonus occurring within our limits have a very distinct 
