diff --git a/lib/jasmine-core/jasmine.js b/lib/jasmine-core/jasmine.js
index b274cc30..04bb65eb 100644
--- a/lib/jasmine-core/jasmine.js
+++ b/lib/jasmine-core/jasmine.js
@@ -1806,6 +1806,12 @@ getJasmineRequireObj().Env = function(j$) {
       }
     }
 
+    function ensureNonParallel(method) {
+      if (parallelLodingState) {
+        throw new Error(`'${method}' is not available in parallel mode`);
+      }
+    }
+
     function ensureNonParallelOrInHelperOrInDescribe(method) {
       if (parallelLodingState === 'specs' && !suiteBuilder.inDescribe()) {
         throw new Error(
@@ -1828,6 +1834,7 @@ getJasmineRequireObj().Env = function(j$) {
 
     this.fdescribe = function(description, definitionFn) {
       ensureIsNotNested('fdescribe');
+      ensureNonParallel('fdescribe');
       return suiteBuilder.fdescribe(description, definitionFn).metadata;
     };
 
@@ -1865,6 +1872,7 @@ getJasmineRequireObj().Env = function(j$) {
 
     this.fit = function(description, fn, timeout) {
       ensureIsNotNested('fit');
+      ensureNonParallel('fit');
       return suiteBuilder.fit(description, fn, timeout).metadata;
     };
 
diff --git a/spec/core/EnvSpec.js b/spec/core/EnvSpec.js
index f798c80b..7a0c2229 100644
--- a/spec/core/EnvSpec.js
+++ b/spec/core/EnvSpec.js
@@ -251,6 +251,15 @@ describe('Env', function() {
 
   describe('#fdescribe', function() {
     behavesLikeDescribe('fdescribe');
+
+    it('throws an error in parallel mode', function() {
+      env.setParallelLoadingState('specs');
+      expect(function() {
+        env.fdescribe('a suite', function() {
+          env.it('a spec');
+        });
+      }).toThrowError("'fdescribe' is not available in parallel mode");
+    });
   });
 
   describe('xdescribe', function() {
@@ -372,6 +381,13 @@ describe('Env', function() {
         env.fit('huge timeout', function() {}, 2147483648);
       }).toThrowError('Timeout value cannot be greater than 2147483647');
     });
+
+    it('throws an error in parallel mode', function() {
+      env.setParallelLoadingState('specs');
+      expect(function() {
+        env.fit('a spec', function() {});
+      }).toThrowError("'fit' is not available in parallel mode");
+    });
   });
 
   describe('#beforeEach', function() {
diff --git a/src/core/Env.js b/src/core/Env.js
index 7e934987..84507056 100644
--- a/src/core/Env.js
+++ b/src/core/Env.js
@@ -664,6 +664,12 @@ getJasmineRequireObj().Env = function(j$) {
       }
     }
 
+    function ensureNonParallel(method) {
+      if (parallelLodingState) {
+        throw new Error(`'${method}' is not available in parallel mode`);
+      }
+    }
+
     function ensureNonParallelOrInHelperOrInDescribe(method) {
       if (parallelLodingState === 'specs' && !suiteBuilder.inDescribe()) {
         throw new Error(
@@ -686,6 +692,7 @@ getJasmineRequireObj().Env = function(j$) {
 
     this.fdescribe = function(description, definitionFn) {
       ensureIsNotNested('fdescribe');
+      ensureNonParallel('fdescribe');
       return suiteBuilder.fdescribe(description, definitionFn).metadata;
     };
 
@@ -723,6 +730,7 @@ getJasmineRequireObj().Env = function(j$) {
 
     this.fit = function(description, fn, timeout) {
       ensureIsNotNested('fit');
+      ensureNonParallel('fit');
       return suiteBuilder.fit(description, fn, timeout).metadata;
     };