LIGYROCORIS. 201 
LIGYROCORIS. 
Ligyrocoris, Stal, Ofv. Vet.-Ak. Férh. 29: 7, p- 51 (1872); En. Hem. iv. p. 144 (1874). 
This genus is distinctly marked and easily recognized. The disks of the second and 
third segments of the abdomen have a lunate excavated non-pubescent vitta on each 
side, commencing behind the region of the posterior acetabula. 
Ligyrocoris is found in the Palearctic, Nearctic, and Neotropical Regions, and is. 
well represented in Central America. 
1. Ligyrocoris multispinus, (Tab. XVII. fig. 18.) 
Ligyrocoris multispinus, Stal, En. Hem. iv. p. 145. 1’. 
Hab. Mextco!; Guatemata, Cerro Zunil (Champion). 
The type, in the collection of the Stockholm Museum, is here figured. 
This species is variable in coloration. Stal+ writes, “ parte ferruginea pronoti, femo- 
ribus anticis, apiceque femorum posteriorum interdum forte nigris.” ‘This variation 
does not, however, always tend towards melanism, as, in one Guatemalan specimen which 
I have examined, both lobes of the pronotum are concolorous and ferruginous. 
2. Ligyrocoris litigiosus. (Tab. XVII. fig, 19.) 
Plociomera litigiosa, Stal, Stett. ent. Zeit. xxiii. p. 313. 217°. 
Ligyrocoris litigiosus, Stal, En. Hem. iv. p. 145. 3”. 
Hab. Mexico! (Mus. Berol.); Guatemata, San Gerénimo, San Joaquin (Champion). 
—CoLomBIA, Bogota ?. 
The Mexican type, in the collection of Dr. Signoret, is here figured. 
3. Ligyrocoris delitus, n. sp. (Tab. XVIII. fig. 20.) 
Head piceous, thickly clothed with greyish pubescence, and with a central and somewhat indistinct longitudinal 
castaneous fascia; ocelli red, eyes black. Antenne pale fuscous, basal joint, excepting apex, piceous, 
apical joint dark fuscous. Pronotum fuscous, somewhat sparingly punctate, the posterior lobe paler in 
colour, and with the lateral margins and three (or four) central fascize, which are continued through ante- 
rior lobe, darker fuscous; anterior lobe with the lateral and anterior margins narrowly pale greyish. 
Scutellum black, with two pale spots at base. Corium greyish, with a spot near base and apical third 
dark fuscous, the last marked with a transverse, broken, pale greyish fascia near apex; clavus streaked 
with fuscous, especially on apical half. Underside of body dark fuscous. Femora piceous ; apices of ante- 
rior femora, and bases and apices of intermediate and posterior femora pale ochraceous ; tibiee pale ochra- 
ceous, their apices and tarsi fuscous. Membrane very pale fuscous, with the veins pale greyish. 
The body is more or less pilose above; the corium is marked with some longitudinal series of punctures ; the 
anterior femora are armed with a series of small spines beneath. 
Long. 4 millim. 
Had. Guatemaa, Panajachel and near the city (Champion). - 
This species is allied to L. balteatus, Stal, from which the markings of the pronotum 
and corium will alone distinguish it. 
BIOL. CENTR.-AMER., Rhynch., June 1882. 26 
