1962] 
Slater — New Genus of Lygaeidae 
43 
absent or infrequently developed in the Lygaeinae, Orsillinae, Ischno- 
rhynchinae and Geocorinae. Thus it can be seen that the presence of 
incrassate fore femora is at least roughly correlated with ventrally 
located spiracles. The latter is the less specialized condition. The 
correlation may well be more than coincidental and at least give some 
indication that an enlarged femur represents the generalized condi- 
tion within the family. 
It is thus most interesting to encounter a member of the Ischnorhyn- 
chinae with forelegs as strongly developed as in any of the subfamilies 
whose members are usually provided with incrassate fore femora. 
Except for the remarkable front legs this insect appears to be a con- 
ventional ischnorhynchine. It possesses dorsally located spiracles, a 
large claval commissure, a punctate clavus, hyaline membrane of the 
fore wing, hind wing with hamus and intervannals present, a 
“pruinose” body bloom, and a non-depressed posterior pronotal margin. 
Macellocoris new genus 
Fore femora strongly incrassate, armed below with four sharp, 
prominent, elongate spines ; lateral margins of pronotum non-explanate 
but sinuate, bearing a series of prominent setigerous tubercles; clavus 
with a closely set row of punctures adjacent to claval suture and two 
inner rows of very large coarse punctures; membrane transparent, 
hyaline, exceeding apex of abdomen ; eyes prominent, in contact with 
antero-lateral pronotal angles; apex of head attaining but not 
exceeding first antennal segment; preocular distance greater than eye 
length ; lateral margin of corium explanate. 
Type species: Macellocoris incrassatus new species. 
Macellocoris incrassatus new species 
Plate 2 
General coloration reddish-brown, pronotum lighter on either side 
of midline posterior to calli and near anterior margin ; hemelytra 
opaque whitish, the irregular punctures brown ; legs yellow with 
anterior femora bright tan ; antennae with segment one, two except 
extreme apex, basal one-half of three and basal one-fourth of four 
yellowish with remaining antennal areas fuscous; venter reddish 
brown ; mesal area of sternum black ; head with large, coarse, con- 
tiguously placed punctures that give a rugose appearance; pronotum 
and scutellum with rather small, deep evenly spaced punctures; claval 
punctures very large and deep, those on corium irregular in size and 
